https://rgulland.com/engineering daily 0.75 2021-11-09 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507584224131-PUVGX0CUS7H8EDUA6FYR/17309339_10154140093557131_4861574782173400676_n.jpg Engineering Freshman and Sophomore year I was an integral member of MIT's racecar design and build team! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1509250993382-1YABNSCFDWXP4T7UG2TG/8dad2edb3e227d1fc700136feff8056020d6.jpg Engineering In high school I competed in FIRST robotics competition. We won the LA regional competition and went to World Championships during the year of my captaincy. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514773189482-BT4IWZ6M459FEG46KPKF/Yellow+Cropped+2.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552886116822-4GLRUBKFNJHW282QKYO8/009dangerl-1.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552919283678-G28H1R4JOFZE3TLVQ8CY/Screen+Shot+2019-03-18+at+10.11.36+AM.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522327717-F7HPYTY9B0FB2M87QW47/PXL_20210124_153033344.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611523900708-JY1H7TYLS6CQRVQP8UFW/IMG_20170116_172138.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614533195337-8L7RMOP155MUPMVJD0ES/Test_42.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514755808899-3HKH2US1B3X1ST24WCGB/Yellow+p1.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514755980447-F3EZRZSAFLGV3WXPD3G4/Yellow+Cropped+3.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514767389854-SMU9V8GK6434GCPYHVYZ/Yellow+Cropped+5.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514767260078-3L7ZJ5PBS4D2ECT2GRRU/Yellow+Cropped+4.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769122336-WWTW9U7ZF7JNOPD3W3OA/IMG_20171128_170630.jpg Engineering - Final Revision PCBs These are final populated pcbs. Visible are the radio modules, GPS, microcontroller, and voltage regulators https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769799628-7VYQJKI9YMF9AEIJORIM/Artboard%2B1.png Engineering - Electronics Architecture This annotated eagle schematic details the function of the electronics. We have an ARM microcontroller broken out to talk to a meshed radio, GPS, LEDs, switches. All components are powered by AA batteries and voltage regulation chip. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769656812-E4INKE88I45MSMFMUIYL/IMG_20171213_142722.jpg Engineering - PCB Evolution Various improvements have been made across iterations. We learned to use more COTS that we could test on a breadboard and increase the size of boards for ease of assembly to aid in producing a successful product. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769120978-NE7TUSREQSW2YYC0IAB8/IMG_20171207_130316.jpg Engineering - Mass Produced PCBs   I populated the PCBs with a combination of reflow and hand soldering. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769122778-53LHXKZM6MYEJ234DT7P/Top+and+Bottom+pretty.jpg Engineering - Example Eagle Design v2.0 prototype was my most complicated eagle design, including a custom ARM cortex breakout and voltage regulation.We ended up reverting to a breakout of a existing microcontroller later. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769652007-I54TBNPT0239M9VT655C/image.png Engineering - Prototype PCBs https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768069202-AFA1SE70NLOL5Q88KFGQ/Ryan+Gulland+Headshot.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768185083-LVUSGVGEQDPSFHWC46TI/slideshow-images-10_02l-33.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768179762-YQ3IWTW2TAFVBEVHBHK7/slideshow-images-10_02l-36.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768123107-2RSRDRMY02BK3MBTQ9IH/slideshow-images-10_06l-27.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768125291-9RX6VEZOTU6PNIZX0EFI/slideshow-images-10_06l-94.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768127084-3EH6WZ0GCP5R1RLXYLPI/slideshow-images-10_06l-117+%281%29.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514768142406-L40B8II8HLW787W6P17H/slideshow-images-10_06l-121+%281%29.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769831173-BHQ393AUE006Q3W4KVJO/slideshow-images-09_14l-2.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514769831431-8JSPYYW0FO8QA2AJW8UF/slideshow-images-09_24l-2.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514772912906-WA094QR3TYVLF7SUYWJM/image-asset.png Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552919089629-FPJY8FUNJK4Y6ZZOA235/team_photo.jpg Engineering - Aquadio team https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1546038108341-3QPO5Q7R4RBDGLL5ZZ5G/009dangerl-1.jpg Engineering - Design Instruction A year of design instruction and content design https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1546042341637-YB8JMREOWMFF1AVIFMZ8/009dangerl-163.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1613342666897-AJIFYKPD5K426PJI8P5Q/Silver1.jpg Engineering - Collapsible speed bump under load https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1613342741831-WR20IEP0YRXSSGQ186UE/trex_disco_scram.jpg Engineering - Over 700 RGB LEDs meant lots of debugging... https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1613342665238-5NJ8DHI0OH0AINUT1B68/silver1+%281%29.jpg Engineering - Presentation demonstration https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1613342660793-AXHBKTANNZYUY07MXEXL/ostrich_tiled.jpg Engineering - Wireless dance mat meant lots of communications debugging https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552877568564-GRV73359DM61NNE2Z2OI/11_16l-2.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552876657727-FNXQ1GO8GKZNPONU9X25/09_07l-14.jpg Engineering Themereveal https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552876658881-4YPHGZIWJHJ0CO6FD9S5/09_07l-12.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1562598687043-8HUONHA2SL1TCS2FLXLL/009dangerl-151.jpg Engineering - Actuated speed bump I mentored this team and provided advice on different mechanisms for actuating the speed bump, facilitated meetings, and manufacturing advice. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1562598678847-DIHDN3WZ60HGX0JWSTAW/009dangerm-98.jpg Engineering - Heated life vest Advised construction of the battery pack and battery safety https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1562598682467-Q04EKEC5VF3OC4J0LDKA/009dangerm-135.jpg Engineering - Transforming crutches - knee scooter Advised locking mechanisms and different transforming geometries. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1562598676274-XJ41O4ESKI9KJLXUTU4L/009dangerl-142.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552883377709-LP2VH1WFC6577GFWTQHQ/11_07l-22.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1552884539129-O1Q8EX6FNMP21BSV16IG/009dangerl-194.jpg Engineering Thanks for reading https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611518913740-MFCOU1Z4II7B9EQRZX4E/summer-smoothiess.jpg Engineering - Design Consultancy https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611506358250-I1JW7XA54AYUNWIG4RBN/Smoodi+Machine.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522763455-LUKD59YD8EQE3MZXJIAQ/Old_design.PNG Engineering - Old Design https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522776869-WQZ7HR7SU69C9DML6KXV/New_design.PNG Engineering - 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Blending https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522705077-KBBQCHJ3PZHNFEOR9B73/User.PNG Engineering - 2. User takes smoothie https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522726431-8WLRF5RRFVX2XCLZIC2K/Closes.jpg Engineering - 3. Cleaning https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522747636-W60P196PMIE7Z4A55W60/Clean.PNG Engineering - 4. Ready for next blend! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611506999429-392UT0L5WKGI6T1FQ9TH/smoodi-sketch-2.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611506953154-F1GN4H27WN2Q5EGJWHBB/smoodi-sketch-1 Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611522906322-3XB25UOVJ887KTHLB68F/image-asset.jpeg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611523156061-QONIAQJ9GG309BLFXIET/MVIMG_20190805_184955.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611523094394-VLMDC25X6NXZZ3QVLG81/MVIMG_20190805_185005_1.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611527079196-QGF43EU2FROGT8K4AJRS/failure.jpg Engineering - Atlas Devices Externship https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611527335726-QGM214MAHV4OKECJV6VZ/APA-5+Catalog.PNG Engineering APA-5 catalog page https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611527267667-RUUIR9R8JITZHA44XCQY/image-asset.png Engineering APA-5 in a helicopter rescue https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611535192196-O0WA67SMN89CLMYQETPB/IMG_20170116_172138.jpg Engineering Failure is important sometimes :) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611523976209-DAOU86H169OHFCACI56B/IMG_20170203_170440.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611533330344-GKRYWYSM5CFQC8HJ18PS/IMG_20170203_170351.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611523759037-4ERP5PR7WJJ3Z705KL76/IMG_20170202_142046.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611526724534-D5KHU8MUVB429ACVFQBP/Climbing2.gif Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611526540558-IJWP2U6RBPZ2ATG3T1TG/image-asset.gif Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611526936709-2TAKJTCH9NGBGDDU8FRO/APA-2-info.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611526935984-ONH25J39F9M2UWJF210U/Comparison.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611536356574-5VABRCLMR3HZJAIUQ6ED/IMG_20170203_162111+%281%29.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611536345709-SL2D1G49EO1GCH40UKY7/IMG_20170203_131612.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611536357400-XZNRHXZ1ZL8L9666DZLB/IMG_20170203_162111.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1611536345154-P2DQVLIDO6AX8JOPVDAL/IMG_20170203_131601.jpg Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614528190994-TG7CLWAELVGGCD71VOT8/biodesign.jpg Engineering - Harvard Biodesign https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614524812014-HQ1QEBWNPEVOC9IL538N/Test_38.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614524811774-WZPQO3YUM9SN0ULZI7D0/Test_40.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614524813131-M910CQ2PBZBK31JEOIGI/Test_42.PNG Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614528490665-600A2HYEFI81YZOUWO0C/Glove.jpg Engineering Grip glove system for stroke rehabilitation in user testing https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1614528509929-2OJW9ZIH79VN8URIH5Q7/MedicalUpperLimb.jpeg Engineering Medical upper limb system prototype https://rgulland.com/blog daily 1.0 2023-05-13 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1509306379980-FBL1CL3MISHQJVAA2297/IMG_20170723_174020.jpg B(uild)Log https://rgulland.com/blog/2023/1/1/new-year-same-plans monthly 0.5 2023-05-21 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1643678479002-OY5OGAK9MNKFFRL5Q03W/PXL_20211111_214537299.NIGHT.jpg B(uild)Log - New Year Same Plan! - Make it stand out Designed, assembled, tested, and open sourced a portable power supply ~ https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647819425078-KTUHEINGJOLXWDDU9VWO/DSC00544.jpg B(uild)Log - New Year Same Plan! - Make it stand out Made and released another open-source portable tool: a PCB reflow plate! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/0b695e23-ff71-486b-a5b1-8299d938789f/Speedcube.jpg B(uild)Log - New Year Same Plan! - Make it stand out Learned how to solve a rubiks’ cube with CFOP (3LLL) in <30s, and 2x2, 4x4, and 5x5 slowly. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489841965-OUQ2R5XLYLQNO3J053LD/PXL_20220517_202344759.jpg B(uild)Log - New Year Same Plan! - Make it stand out Moved to Sunnyvale and did a few cool DIYs while setting up the place. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/997165ae-0232-43de-8973-0ab9b260dc94/Housewarming.jpg B(uild)Log - New Year Same Plan! - Make it stand out Had friends over multiple times for board games or movies, including the housewarming party pictured above ~ https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f600b209-42fc-47cc-8206-e83d5ab56fec/PXL_20220628_135159526.MP.jpg B(uild)Log - New Year Same Plan! - Make it stand out Entered the world of automation startups! Bump caps, safety systems, and company benefits (don’t ask why I’m so happy for a vending machine) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/967e2a43-b319-42c7-a0eb-50276c1a5860/PXL_20221208_043434526.MP.jpg B(uild)Log - New Year Same Plan! - Make it stand out Had a lot of fun at the new company! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/be7ffa86-f996-49f5-80a1-be876511fc56/Shiori.jpg B(uild)Log - New Year Same Plan! - Make it stand out Met my lovely girlfriend! Here’s a photo of us at the SF cherry blossom festival ~ https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/75d24a18-7507-42ea-b06f-ac6756bd4cf4/Genki.jpg B(uild)Log - New Year Same Plan! - Make it stand out Started learning Japanese with Genki and Anki (image courtesy of Tofugo) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/982a8fc3-fdc2-496a-b879-cb713db55a92/Proforma.png B(uild)Log - New Year Same Plan! - Make it stand out Ordered the 5 axis CNC I promised in last year’s update… so excited to start machining! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7b68febd-e58e-4a85-8c60-8b36e8023357/Fulfil.jpg B(uild)Log - New Year Same Plan! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/47f5c756-51ef-4581-b56e-5585795ae499/PXL_20230403_013032465+-+frame+at+0m0s.jpg B(uild)Log - New Year Same Plan! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/49c9cffe-869c-40bd-b2e0-edbc858e83ee/PXL_20230125_181126015.jpg B(uild)Log - New Year Same Plan! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2022/7/3/new-apartment-diys monthly 0.5 2022-07-04 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489864367-L0HICZKI8IJ5NCMD0YQ5/PXL_20220517_193717535.jpg B(uild)Log - New Apartment DIYs The only straightedge this long I have is a doorframe… https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489863850-8DYYU1YPALJZE7WW39XI/PXL_20220517_193748154.jpg B(uild)Log - New Apartment DIYs Ultra-fine dinish top & bottom cut jigsaw blades are great https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489857197-2U5M5672V6VPMSAWY4VS/PXL_20220517_194827833.jpg B(uild)Log - New Apartment DIYs Laying out the table https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489856871-4O36AJTCDW2YHGUHGI3D/PXL_20220517_200745474.MP.jpg B(uild)Log - New Apartment DIYs 1.25" square-drive Kreg screws are fabulous https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489848308-LPN7E842BDRO64JV8PH0/PXL_20220517_201751500.jpg B(uild)Log - New Apartment DIYs Due to the oversized tabletop, I jankily overextended the sit-stand mechanism and reinforced with additional screws https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489846457-BDOK5V5MNNIRWGYMM1UF/PXL_20220517_201757907.jpg B(uild)Log - New Apartment DIYs A close up of the jank https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489841603-2VTICGXZI0E0EMMCD4T7/PXL_20220517_202129322.jpg B(uild)Log - New Apartment DIYs Assembled table in lowest config… https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1654489841965-OUQ2R5XLYLQNO3J053LD/PXL_20220517_202344759.jpg B(uild)Log - New Apartment DIYs and its’ highest config! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/ebff3dd8-c735-4f7a-ba07-f67e37f97bc1/PXL_20220616_034410777.NIGHT.jpg B(uild)Log - New Apartment DIYs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1656873563499-QE511QKFLZKASN0221X3/PXL_20220703_171750552.jpg B(uild)Log - New Apartment DIYs https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1656873584483-FPO1WV15YGX06IC9PACX/PXL_20220703_171805202.jpg B(uild)Log - New Apartment DIYs https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1656873605856-V1KR79VS3WMK05C4Z32X/PXL_20220703_171817779.jpg B(uild)Log - New Apartment DIYs https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1656873611126-AMSBMAGA3DT5ZUAREUMW/PXL_20220703_171823050.jpg B(uild)Log - New Apartment DIYs https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1656873619241-EBCS95PRWAQBDMUOGUES/PXL_20220703_171838463.jpg B(uild)Log - New Apartment DIYs https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/49cf9fb9-5b79-48dd-9097-326dafcdf7e8/PXL_20220519_205318696.MP.jpg B(uild)Log - New Apartment DIYs - Make it stand out Laptop components laid out: the main body and motherboard is preassembled, but the memory, SSD, wifi card, and ports can be assembled. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/0f28321b-0a46-478b-838f-e0d70576b173/PXL_20220519_205530196.MP.jpg B(uild)Log - New Apartment DIYs - Make it stand out View mid-assembly https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a8a14c9e-4bdc-49a7-9963-ea753cd29656/PXL_20220521_051115415.MP.jpg B(uild)Log - New Apartment DIYs - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2022/4/17/carbon-fiber-speedcube-exploration monthly 0.5 2022-04-21 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/25b37d5a-dfae-44a5-b318-36ff2d2d005f/Reddit.JPG B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Reddit post that spurred me to start a feasibility study https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/6a6924ad-3834-4e8b-b5e4-3a589ea75438/ezgif.com-gif-maker+%282%29.gif B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Speedcube internal mechanism: center, edge and corner pieces slide together despite not being attached. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f69fa1db-c2e3-470a-8967-ed9c9651fbe0/Capture.JPG B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Diagram of mechanism assembly from a paper on rubik’s cube mechanisms by The Chinese Journal of Mechanical Engineering https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/e410635d-5356-4a56-9c64-0e53e006bf07/ezgif.com-gif-maker+%283%29.gif B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Speedcube design allows automatic correction of angles, aka ‘corner-cutting’ https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/81f87599-8f3a-4897-8133-3eecd6fb496f/ezgif.com-gif-maker+%284%29.gif B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Doing 2 7-move sequences back-to back in 4 seconds https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a6ed5ed5-7276-4b1d-8f64-e35d1c9475c4/PXL_20220419_200821371.MP.jpg B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Edge piece and center piece parts for WR M 2021 (top) and the cheaper and simpler RS3M 2020 (bottom). https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/0a74860a-a329-4a23-99e5-ca7a973b56b7/Corner+Piece.JPG B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Finished redesigned RS3M edge piece CAD. It maintains the external dimensions while redesigning the internals to fit the manufacturing method. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/409fffc2-4b67-4600-8617-8aba9aa32142/Assembled+Corner+Cross+Section.JPG B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Cross Section of assembled edge piece. Hidden mechanical part with all sliding & aligning geometry( left) is held to externally visibe edge (right) with assembly pin(highlighted blue). The assembly pin additionally contains the magnets used for automatic alignment. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1650501573438-YGG9IGE032UD2HEQ2UID/Draft+Analysis.JPG B(uild)Log - Carbon Fiber Molding Exploration - Draft analysis Solidworks mold tools automatically show correctly drafted, steeply drafted and vertical directions. Greens denote top mold and reds denote bottom mold, while yellow sections are vertical. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1650493246884-0RXB9NHK3SHA75BWJ74Y/Open+Mold.JPG B(uild)Log - Carbon Fiber Molding Exploration - Empty bottom half of mold with undercut-compression cap https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1650493750338-LIL41VLOVY36BDV8OF0T/Mold+Cross+Section.JPG B(uild)Log - Carbon Fiber Molding Exploration - Cross Section of mold along parting line Clamping & aligning hardware highlighted in blue https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1650493247864-RRR7RWXW16BWWRR4W9I3/Clamp.JPG B(uild)Log - Carbon Fiber Molding Exploration - Closed Mold in Clamp https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/395c6e5f-1660-4a0e-9e1f-843bddb9862e/Jigged.jpg B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Postprocessing jig locked around raw molded part https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c4c5783d-d92e-4b7c-8b5b-5dc76837d104/Jigged+%26+Processeed.JPG B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Jig after sanding and drilling https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c5884b92-da18-4b9b-bba3-17b8a84280c3/Postprocessed.jpg B(uild)Log - Carbon Fiber Molding Exploration - Make it stand out Fully postprocessed part https://rgulland.com/blog/2022/3/27/open-source-hardware-licensing monthly 0.5 2022-03-30 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7acab038-307b-4084-a94b-45eb12dc0242/Capture.JPG B(uild)Log - Aside on Open Source Hardware Licenses - Make it stand out Engineering equipment development ‘flywheel’ with experience and tools from projects being used to make future projects better. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/44aa5f9f-6719-4109-8206-bbe3d0ea5a7e/Capture.JPG B(uild)Log - Aside on Open Source Hardware Licenses - Make it stand out Table enumerating license types from the Wikipedia page on copyleft https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/fe9cdd21-cf6d-4061-aa81-fdd5ccc4bc09/Capture.JPG B(uild)Log - Aside on Open Source Hardware Licenses - Make it stand out My personal high level evaluations of popular licenses that allow derivation and revoke designer liability https://rgulland.com/blog/2022/3/11/reflow-heater monthly 0.5 2022-03-21 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/56598c94-1ec8-43c6-a849-0214e54de54b/reflow-zoom.gif B(uild)Log - Portable PCB Reflow Plate - Make it stand out reflow gif courtesy of sparkfun https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/adece625-b093-4e8a-97fd-f4a83ece6aae/Capture.JPG B(uild)Log - Portable PCB Reflow Plate - Make it stand out Reflow curve for SMD281AX 63/37 solder paste https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c1888964-069a-49fa-8053-2e80730c05c1/Capture.JPG B(uild)Log - Portable PCB Reflow Plate - Make it stand out Comparison of design to existing options on spreadsheet link https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/77bc3abb-a1e9-4e57-823d-a8445efea9a0/PXL_20220312_041152284.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Block diagram shows connectivity of all electronics components. I had to check the Arduino wouldn’t run out of pins! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f1b7badd-87ac-46dc-8657-ac2a62ed9c43/Capture.JPG B(uild)Log - Portable PCB Reflow Plate - Make it stand out BOM Components: I designed it to use kit comonents I had on hand, so I only factor in the portion of those I use since they’re interchangable. spreadsheet link https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/8684e7fc-11fe-43ce-a3a9-602959fbddd9/Capture.JPG B(uild)Log - Portable PCB Reflow Plate - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/38014747-9310-4b64-845a-a3e6e72712c7/Capture.JPG B(uild)Log - Portable PCB Reflow Plate - Make it stand out Plate hidden & shell transparent to show design https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/e7a8441c-6075-4596-b2a3-bc339619c3a5/PXL_20220311_191701628.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Electronics Wiring https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038250702-UK795J7T9B7814USXPHP/PXL_20220311_185336768.MP.jpg B(uild)Log - Portable PCB Reflow Plate - Main Menu https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038248828-RXJOX75YETA7N5OGI63P/PXL_20220311_185344838.jpg B(uild)Log - Portable PCB Reflow Plate - Preheat Screen https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038229102-H9FCSB8CRXMWMGEB6G3R/PXL_20220311_185331832.jpg B(uild)Log - Portable PCB Reflow Plate - Curve Selection Screen https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038241810-H9LX4OZ8RJ80NIPFGYW3/PXL_20220311_185314898.MP.jpg B(uild)Log - Portable PCB Reflow Plate - Reflow Curve Screen The display graphs the selected reflow profile along with the actual temperature history. The max curve temp and name are displayed at the top. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038412334-HEDO5G0O368CHS0YEBQ9/PXL_20220311_185513413.MP.jpg B(uild)Log - Portable PCB Reflow Plate - Front view Adhesive insulating foam underneath hot plate protects 3D-printed body. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038396999-B81RYWF9DYXU09IWRKWM/PXL_20220311_185533569.jpg B(uild)Log - Portable PCB Reflow Plate - Right side Fan intake visible. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038332957-GCJT25PCU54P6QDS6HY5/PXL_20220311_185445935.MP.jpg B(uild)Log - Portable PCB Reflow Plate - Rear View Power switch & fused plug on back. Below hot plate, thermistor is visible (red adhesive, copper-colored cable https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647038328737-6KB9XV8KKTRKR9FEKALU/PXL_20220311_185501090.MP.jpg B(uild)Log - Portable PCB Reflow Plate - Left Side Micro-usb for programming visible https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647041308914-HK7KQJAH4KPF2SLIW7EG/PXL_20220311_185554641.jpg B(uild)Log - Portable PCB Reflow Plate - Top view Countersunk screws and hot plate, grounding wire, and thermistor wire into fan column visible. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1647041321028-JYGR3UTVONS396G7EKHP/PXL_20220311_185605478.jpg B(uild)Log - Portable PCB Reflow Plate - Bottom view 3 neoprene rubber feet & all assembly screws visible. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/e2b15f22-5163-4023-84bc-73db1e73e4a8/PXL_20220311_180013359_Moment.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Flame Test: All materials burned under direct flame, but insulation foam proved flame resistant. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/b5939fbb-2e7e-4bbf-8b6c-afbc20086b88/PXL_20220311_180316433.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Results of Flame Test From top to bottom as clamped: Insulation foam, silicone stranded grounding wire, PLA filament, Carbon-fiber filled nylon filament. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/4bb7867b-6daa-43c7-ae8c-8255f8c4acd7/FLIR_20220311_094828.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Plastic gets up to ~50 degrees C, while ceramic columns https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/852b1e7e-3331-4564-b954-b60c9e3aa6a2/PXL_20220312_055504004.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Solder test on a couple pads of an old PCB (tagconnect for scale) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/9fcd21e0-669d-45ef-8dc4-77859d2c8c2c/DSC00544.jpg B(uild)Log - Portable PCB Reflow Plate - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2022/2/14/spliced-camera-strap monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/71054364-135e-4cc1-afbc-25aaea972ebb/PXL_20220214_001556972.jpg B(uild)Log - Spliced Camera Strap - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f30adfaa-eb96-413e-b3dd-9ecd3638b315/PXL_20220214_001221090.jpg B(uild)Log - Spliced Camera Strap - Make it stand out Completed eye is so stiff it retains its position after bending. This is the minimum bend radius. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/5754a9e2-35ed-4d9f-9735-9a6c82097adb/PXL_20220215_001250763.jpg B(uild)Log - Spliced Camera Strap - Make it stand out Perfectly sized: hand barely fits through loosened strap https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/156429c7-5c6e-436a-be03-a8cb2b6cf717/PXL_20220215_001304607.MP.jpg B(uild)Log - Spliced Camera Strap - Make it stand out Strap self-tightens and secures around wrist. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/8f19aeb1-32ea-43ed-b70b-6c739c1c3b8c/PXL_20220214_001323760.jpg B(uild)Log - Spliced Camera Strap - Make it stand out Close up of spliced connection https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1644884228367-ZSRSKUZ6Z24LEPJRH1B6/PXL_20220214_001348220.jpg B(uild)Log - Spliced Camera Strap https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1644884228867-HW6555GPR12EX38I65I4/PXL_20220214_001342508.jpg B(uild)Log - Spliced Camera Strap https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1644884231659-O6RB675B01X6LATAH6O7/PXL_20220214_001412538.jpg B(uild)Log - Spliced Camera Strap https://rgulland.com/blog/2022/2/10/3d-printer-reliability-upgrades monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/522416a9-8857-4015-b384-ac1011e86c8b/61GEzG8zkgL._SL1500_.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Sidewinder X1 printer: cheapest printer w/ 30cm^3 build volume & direct drives https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/bf6d62e5-ba73-4494-a26f-9e5021b4c0d1/PXL_20220210_024459252.MP.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Corroded contacts on both the cable and connector. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/aca41896-66ac-41f1-8cbd-c9c86e3af2ac/PXL_20211122_150547674.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Bypass wires hanging from the x axis rail https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/99fc712e-e6b2-4f1b-bd87-6cc901bc97d1/PXL_20220203_172040352.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out View of bypass wires soldered to hotend PCB https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/bd67380a-162c-4b12-b785-aa71202b90cb/CMS.JPG B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Circuitmaker schematic editor: quick, easy to use, and fast to place components from the integrated library. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/321b329f-428e-4044-bde0-722280fe38e1/CMB.JPG B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Board editor was familiar to me and has a convenient 3D mode. Too bad it doesn’t have critical functionality like documentation or custom libraries. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/d035fafd-64cf-4830-a0ad-6f2e23bb9b24/KCS.JPG B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Accidentally made the schematic SUPER ugly by using the wrong symbol library. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/158af37c-4932-4041-8822-33901711ca43/KCB.JPG B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out PCB layout was pretty comfy after setting up hotkeys. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a0e510be-4507-4e0e-9975-0c0c06f8ac98/PXL_20220131_001524306.MP.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out New PCBs and cables https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7651e21d-a6a9-4253-bb07-1f574dedd3aa/PXL_20220203_215300834.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Soldered Base PCB with standoffs installed https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/fb6b8f97-2d7d-4f11-8b2c-d06afe0eab15/PXL_20220203_164550900.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Old PCBs (top) vs New PCBs (bottom) Extruder PCBs (left), base PCBs (middle) connect motherboard JST cables to new cabling, X-axis PCBs (right) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/e38176fe-5e83-442e-95e0-0ae94f504c51/PXL_20220204_024158175.MP.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Soldered extruder PCB (left) and installed X axis PCB (right) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/ec8738bc-90d8-4aef-81d2-476988d639fd/InkedPXL_20220211_005103813.MP_LI.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Yellow analog read port originally used for hotend thermistor was burnt out, so had to switch to unused red analog read port. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/fea42c20-a343-4e4f-a409-7041b93a4396/marlin.JPG B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out New upload code: thermistor remapping is commented https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/59c75347-cbd7-4de7-99d8-0361c6bcf7e8/marlin+options.JPG B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Build options for Sidewinder X1 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/eba9b7fc-a902-4288-a3ee-8c5432dcac9e/InkedPXL_20220211_005122284_LI.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out During upload the touchscreen data cable has to be unplugged. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c4c23b87-9964-479e-a038-6eb3a4db2a3e/PXL_20220211_005631116.jpg B(uild)Log - 3D Printer Reliability Upgrades - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2022/01/31portable-power-supply-testing monthly 0.5 2022-03-20 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/9740e6f0-5b24-4ed4-ae44-73ceaec08607/PSU+Comparison.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Reference design (left) vs my revision (right) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/85bde8e7-65a6-403f-8b77-fc20e3ac3b96/PXL_20211111_214537299.NIGHT.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Partially assembled & fully assembled slim power supplies. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/898f2233-0cba-4d7f-8016-7ab086d05a68/Capture.JPG B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Spreadsheet link to the documentation I generating including these charts. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7ed8a07c-a12b-45fc-ab89-89f8961cde51/271858379_981613279195721_1327799841130598856_n.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out A picture of the testing setup. From left to right: USB oscilloscope, Kill-A-Watt USB power meter, Phone with attached thermal capture module, Power supply, Multimeter (used as DC autoranging voltmeter), Load resistors and cooling fan, and Camera on gorillapod to capture meter measurements. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1643658449974-F0C0LA2WUE6WPAS46IUF/DSView-220125-112058.png B(uild)Log - Portable Power Supply Pt III: Testing - 5V loaded power-on 5V loaded power-on https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1643658450102-VYN0K1H7LF05SKE42RWF/DSView-220125-112223.png B(uild)Log - Portable Power Supply Pt III: Testing - 5V Loaded Power-Off 5V Loaded Power-Off https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1643658462504-AWVGWY0WUT75GYBPUYET/DSView-220124-214558.png B(uild)Log - Portable Power Supply Pt III: Testing - 10V unloaded power-on 10V unloaded power-on https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1643658462675-O1SOMWVKY8LCJHZC7RDN/DSView-220124-214755.png B(uild)Log - Portable Power Supply Pt III: Testing - 10V unloaded power-down 10V unloaded power-down https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f3dc095c-a1ef-486e-bb0f-1fdb2b5e56bd/Error+Voltage.JPG B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Errors are consistent and low with no error and linearly rise under max load. Likely source for this is the resistance of the test leads. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/d2e19032-5644-4526-9eaa-176e406c64ff/Rise+Time.JPG B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Fall times when unloaded take forever, but otherwise all rises / falls are consistant and take < 90ms. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/d731e44f-d090-48c5-84fd-6f18fbea9231/FLIR_20220124_100605.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out No load temperature at Max voltage https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/4309d8bd-a038-4cc2-b602-b42aec3cf5fb/FLIR_20220125_114017.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Hotspots During 31V, 158W test. The 155.4C component is the AC filter. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/5f0d6f85-5164-40c6-8d6c-9d31c178cffa/Temperature.JPG B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Graph of component temperatures under 6.1 Ohm load. Thermistor temperature scales well with the power output, but the AC filter or ‘choke’ scales near the square of power, causing an absurd overtemperature condition around 150W. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/13065dab-4e6c-4a6f-aa27-40932af4511f/Efficiency.JPG B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out The constant 3W draw of the system (composed of indicator LEDs, fan power draw, and parasitic resistances) affects efficiency at low voltages heavily but doesn’t scale at higher values. The https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/eaaf4baa-9153-485a-bef5-197645f6c007/FLIR_20220125_114949.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out 31V 158W load viewed through sidepanel of enclosed unit https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/2c7c3ac0-4bc8-42f9-a994-6c8c0aedb950/FLIR_20220125_114017.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out 31V 158W load viewed from top of open unit https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/b386ba10-024d-4abf-81b4-c1544dc5adaa/PXL_20220130_170000801.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Initial parameters with supply overvoltage, overpower maxed. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/93ddd82a-7e01-40f9-bd3d-9daee9b70cf3/PXL_20220130_165939476.jpg B(uild)Log - Portable Power Supply Pt III: Testing - Make it stand out Final adjusted parameters, supply overvoltage set at 32V and overpower protection set at 150W https://rgulland.com/blog/2021/12/30/new-year-new-plans monthly 0.5 2022-03-01 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/ba03f3d8-cd5e-4606-a834-29851608b1ed/rgulland-CSWE-small.png B(uild)Log - New Year New Plans - Make it stand out In August I got my Solidworks Expert Certification. This is the highest level of Solidworks knowledge, only currently awarded to ~6k of the top Solidworks users worldwide. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c0094e51-6d29-44af-a146-13caf07ac1e7/PXL_20210724_183145443.jpg B(uild)Log - New Year New Plans - Make it stand out I became the best playmate of the best dog! What a pretty derp! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/27d3e641-e648-4c9a-9ef5-59943dbf204a/bowflexhero.jpg B(uild)Log - New Year New Plans - Make it stand out Maxed out my adjustable dumbbells (53lb) in squats, deadlifts & bench press! I’ve been working out with them for years and it’s finally time to upgrade soon! (image source) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7e44d85f-d39c-4177-b2cc-e149e3f57fdc/PXL_20211111_214537299.NIGHT.jpg B(uild)Log - New Year New Plans - Make it stand out I improved a popular open source power supply that I’m close to releasing to the world! (still need to set the power limit and test it more) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/980cc8ef-9001-4938-8572-0fa4e1564ccf/PXL_20210624_024700487.jpg B(uild)Log - New Year New Plans - Make it stand out Started cycling and got into a good strength training routine! I’m still weak (150W est. average cycling) but I maxed out my adjustable dumbbells! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/3ac71eb8-f1c0-4b5e-9689-199421330b0a/PXL_20220104_220120476.jpg B(uild)Log - New Year New Plans - Make it stand out Put on 15 lbs & finally started outgrowing my chicken-legs (17% increase in thigh circumference!) and feel confident in my fitness level https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/d7a5688a-8d0e-420c-9088-3806920dc8b8/blog.JPG B(uild)Log - New Year New Plans - Make it stand out Moved my old project pages over to a blog format and started blogging! One day I’ll be a cool kid like Ben Katz or Alex Hattori ~ https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/6a323de5-cf98-41ae-81f0-31288fcee9c1/PXL_20210514_201535445.jpg B(uild)Log - New Year New Plans - Make it stand out Designed, assembled, and tested the most tightly-integrated PCB I’ve ever made. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/46c16882-a39f-4b94-b726-ee65ff204d61/PXL_20210527_204105695.MP.jpg B(uild)Log - New Year New Plans - Make it stand out Moved cross-country! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/9a8482eb-5126-4e3f-8e82-3f84cc25e894/PXL_20211204_013142892.NIGHT.jpg B(uild)Log - New Year New Plans - Make it stand out I was able to reconnect with a bunch of my college friends who I’d neglected during my previous relationship, and am so much happier to have a social life again! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/b78ce59f-b8eb-4385-8141-88813525abf3/PXL_20210416_154244112.jpg B(uild)Log - New Year New Plans - Make it stand out Designed, assembled, and tested my most complicated PCB yet! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f0c781e3-40c8-4dbc-9024-73bc28785822/PXL_20210718_003152824.jpg B(uild)Log - New Year New Plans - Make it stand out I was able to help my parents through a very stressful move. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/4bbae968-f557-4522-97a8-7c24795fc606/Capture.JPG B(uild)Log - New Year New Plans - Make it stand out Flowchart of project plans: I’m currently working on a test frame for a new battlebot revision and a PCB reflow heater, which will both enable future projects. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/2873de4e-b400-4854-b677-268029044c6d/cc671627017ac9ae122a1aa6a457fe61fe07.jpg B(uild)Log - New Year New Plans - Make it stand out My high school coaxial swerve drive that only required waterjet parts was much more limited in design and only ever lived in CAD. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/5520242a-0477-47e8-93df-b93ba8ff4183/000grafpic2.png B(uild)Log - New Year New Plans - Make it stand out My goal is to be comfortable quickly mocking up sketch ideas. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/cd5b0da5-9f0e-41f8-a2ab-311a33bc2662/20210913-moteus-r48-front-corner_1024x1024%402x.jpg B(uild)Log - New Year New Plans - Make it stand out Motoeus motor controller I want to minaturize for use in battlebots https://rgulland.com/blog/2021/12/a-very-3dp-christmas-29 monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a3907f84-6877-48bd-b9b6-9fe6068d7453/PXL_20211122_151627697.PORTRAIT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out My parents’ very cute border collie, Poppy! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/12bcde79-31bb-4127-836c-60ac1b60fdc7/il_794xN.2987538769_kwxj.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Cat dishwasher holder by Etsy seller 'Steerheaddesign' https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/2b6268eb-3149-4d0c-81bd-b250d65b7508/Capture.JPG B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/556062a1-946f-4c74-9f24-3ab39bed7dbe/PXL_20211230_072128800.PORTRAIT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a3c23b11-7eb9-4f7c-8505-772a1bbe450c/ezgif.com-gif-maker+%281%29.gif B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/b4c2227d-54c8-4446-8682-2853b7a15991/PXL_20211230_072046837.NIGHT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/bb63d410-9355-4a7f-9d3e-5b7d71905080/PXL_20211230_073742433.PORTRAIT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/5c26404a-9f7d-4e82-a696-c5518f8dcfcd/PXL_20211230_074025610.PORTRAIT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/0cabb912-9dda-4b8c-b509-421e84ef40ea/PXL_20211230_073912924.PORTRAIT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c386999d-b013-477b-b291-ec91ad0cfafb/PXL_20211230_073613934.PORTRAIT.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/93021377-5ea0-421a-b0d3-f3f527374d47/PXL_20211230_071837054.PORTRAIT+%281%29.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/90734c3d-4259-4046-89c9-9a5e9ca7efc2/PXL_20211230_125102787.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7e432331-d119-4cff-99cf-e33f280e898c/PXL_20220112_192728090.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/f9755396-87da-45cd-955f-146ae8868b78/Bolt+Layout.JPG B(uild)Log - A Very 3DP Christmas ~ - Make it stand out The original suspension mount, set up with the starboard half of the suspension mounted to illustrate the fixtures and load points. Fixturing bolts are marked F and loading locations are marked L. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/8ac75e49-f58e-42ec-b2f8-0b44aa85e8a1/Loads.JPG B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Loading force (L) and moment (M) created by impact on shocks viewed normal to the plane created by the loading force and fixturing screws (F). https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/c1ecadc2-941f-4079-8969-e874e199f3ec/PXL_20220112_194123612.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Original injection-molded part: The part’s mounting geometry was centered at the bottom-left of the above view, which was easily replicable. It was minimally possible to to thicken the design in either direction: thickening towards the rear of the car was limited by the car’s geometry, and towards the front bumper is limited by the movement of the front shocks. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a28a0e20-94d7-4f95-8bec-ff362db0bf21/PXL_20220112_194408199.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Mounted view of the original injection-molded part. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7fe354e7-5923-4098-ab09-3217972b9895/PXL_20220112_194152038.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out First 3D-printed iteration: Geometry of the original part was mimicked & part was thickened & reinforced where possible to better handle the moment loads. The part failed during an identical load situation to the original, which caused the reinforcement part to pop off due to weaker inter-layer adhesion (a property of almost all 3D prints which causes anisotropic failure strengths). The reinforcement not operating correctly allowed the main geometry to fail along the same line as the original. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/0b708e93-2d66-4177-b707-f27ff2adef34/PXL_20220112_194328498.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Mounted view of the first 3D-printed iteration. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/84ed8527-24c9-4bbf-b19e-17c3957a1075/PXL_20220112_194212170.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Current Iteration: Identical to the first printed iteration except bolts were added normal to the plane of printing to preload the weakly adhered layers. These bolts, in combination with the mounting bolts of the front suspension, make the reinforcing back much more structurally sound. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/30e1324c-1e19-431f-ae43-cbb618cd6c1b/PXL_20220112_194433839.jpg B(uild)Log - A Very 3DP Christmas ~ - Make it stand out Mounted view of the current 3D-printed iteration. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1642033320352-E1A24Q2QJA7JRUKWXTLK/PXL_20220113_001345211.jpg B(uild)Log - A Very 3DP Christmas ~ What the parallettes look like when in use. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1642033335246-VFCNND0XS5EWO36MCKX6/PXL_20220113_001312592.MP.jpg B(uild)Log - A Very 3DP Christmas ~ - Mounting methodology The recessed square-drive woodscrew holds the wooden dowel solid. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1642033326915-Y945G7Q9P1CNTPD77ADG/PXL_20220113_001250487.jpg B(uild)Log - A Very 3DP Christmas ~ https://rgulland.com/blog/2021/11/16/hydration-alarm monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637093670971-6A9S32ATLKB8J5MQ99WV/PXL_20211116_192442946.jpg B(uild)Log - Hydration Alarm - 1. Original tea machine concept https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637093671104-F2TCJF76AAQBIN4F2FR8/PXL_20211116_192459219.jpg B(uild)Log - Hydration Alarm - 2. Second revision of the concept. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637093671988-DXT0NPSAXKZSELWXG83H/PXL_20211116_192502813.jpg B(uild)Log - Hydration Alarm - 3. Roughing out the concept BOM &amp; design https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/01580ffb-e75e-426f-bfc3-0b6e56459705/Alarm+CAD+3.JPG B(uild)Log - Hydration Alarm - Make it stand out Overall view of the device: screen, button, buzzer and water bottle visible https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/efcf2147-1bc3-44f3-8de2-2eee08029635/Alarm+CAD.JPG B(uild)Log - Hydration Alarm - Make it stand out Cross section view showing the location of the load cell (silver), arduino (blue), USB cable, amplifier PCB (light green), and perfboard backplane for buttons (dark green) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637884050007-B4MZ3JZUTDYC41HKYHQ9/PXL_20211122_193642975.jpg B(uild)Log - Hydration Alarm - Breadboard prototype It successfully got me up! Big success! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637884047852-IHCCYWBHFFDHJGTRSOB4/PXL_20211122_150547674.jpg B(uild)Log - Hydration Alarm - 3D print of exterior https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637884041750-8MHEP7XK8Z8VYARCH8DE/PXL_20211123_021600122.jpg B(uild)Log - Hydration Alarm - Mechanically assembled and partially wired https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1637884153992-2BBWJ18K6964GGUA7HHB/PXL_20211125_232802482.jpg B(uild)Log - Hydration Alarm - Final wiring Solid core was a huge mistake as always, but it’s what I had on hand of the right gauge and made the perfboard far easier https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7dc30d29-120c-4c59-8f0c-d3cf7d46baba/PXL_20211125_232814557.jpg B(uild)Log - Hydration Alarm - Make it stand out Buttons from left to righ: set, time down, time up https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/445c15b2-f4be-40a6-bb1c-34b16f992604/PXL_20211125_232854173.jpg B(uild)Log - Hydration Alarm - Make it stand out Sense of scale next to bluetooth headphones on desk https://rgulland.com/blog/2021/11/10/portable-power-supply-assembly monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/e8391edd-b14f-4591-bd8f-12ce27df6138/Capture.JPG B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out Electrical component prep. Most panel-mounted components can be soldered before assembling into the frame. Only 3 joints need to be applied during assembly. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/584f0400-ace5-49e1-93de-4e57223785a8/Inserts.JPG B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out Mechanical component prep: after removing support material, some ‘reaming’ of holes is necessary to correct for 3D printer tolerances. Heat set inserts reduce wear caused by unscrewing the case. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/97c93e35-b682-4fd2-9212-3ae5b5e7d192/First+Assembly.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out A 40mm wire connecting the AC-DC regulator to the UI strains the screw terminals and makes the UI fiddly to unplug https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/40f164bf-02a1-4b97-af45-7e5e9f084ae4/Second+Assembly.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out Second time around the wires going to the UI are all soldered and organized into 2 appropriate-length bundles. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/607e673c-1713-4f53-8cd3-c39725d4a973/Earth+Wire.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out The AC wall plug must be mounted from the outside, which means this optional wire to earth must be soldered after the fact. This can be fixed with a crimped 1/8” ring terminal. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/4b884a3f-89e5-4ba5-b8ac-0c58311f35cf/Hot+Lead.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out Both the AC plug and power switch are inserted from the outside, and therefore must be soldered post-assembly. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/97d207a6-8ccd-486f-8e29-c55a8e54f58c/DC+In.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out The XT60E-M is actually small enough to fit through the hole of the switch, so this could have been avoided. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/ba6500d7-d8cc-40dc-8980-d9f1bfca9797/Banana+Pain.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out These banana plugs with their smooth, notched nuts are a nightmare to screw in using a flathead screwdriver. I might add a bit more clearance if making more. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/6f7f9712-40dc-4ebe-a12e-84f90db2f3da/Capture.JPG B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/aa148c61-f2c5-4f91-a9f2-0183860622a7/PXL_20211111_214537299.NIGHT.jpg B(uild)Log - Portable Power Supply Pt II: Assembly - Make it stand out Fully assembled units (left unit with top frame off) https://rgulland.com/blog/2021/11/5/portable-power-supply-design monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/078c48d3-8772-4cc8-a34c-50c175a130c2/PSU+Comparison.JPG B(uild)Log - Portable Power Supply Pt I: Design - Make it stand out Reference design (left) vs Personal fork (right). Personal design has 35% smaller bounding box https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1f7f65d4-0941-4b9f-91cd-d58bd6a6f777/PSU-right.JPG B(uild)Log - Portable Power Supply Pt I: Design - Make it stand out PSU Right side with ports labeled left-right: DC XT60 output, 40mm intake fan (filtered), DC XT60 input, Power Switch (lit, DC-AC-OFF) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7b0724ff-2dd3-438f-8cc5-23f38194445c/PSU+left.JPG B(uild)Log - Portable Power Supply Pt I: Design - Make it stand out PSU Left side with exhaust grates aligned with major heatsinks https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/9e8c744c-535c-4b2d-a642-a6a4821799e9/Labeled+Cutaway.JPG B(uild)Log - Portable Power Supply Pt I: Design - Make it stand out Internal layout diagram. https://rgulland.com/blog/2021/10/16/ring-spinner-combat-robot monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/6060f4a0-9bc3-49a3-8bc4-6ef7dadc3e15/Captain_Shred_BB2021.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Make it stand out Example 250 lb full-body spinner, ‘captain shredderator’. Note the full armor and the rotation shaft in the middle of the top. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/9124728e-e565-4c54-b7bf-7a8bd5b79635/TheRingmaster_BB2016.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Make it stand out Example 250 lb ring spinner, ‘ring master’. Note the wheels visible on the top side. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636764064128-34EA2SF7XRHH7XAZ0OPD/Battlebot+mk1+side.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Side view Teal rim, reflective top plate, and matte black 3D prints https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636764166645-M54EBOQ0JTQHC3X66NYY/Battlebot+mk1+side+annotated.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - View of internal components https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636764064245-QSFZX5R8TP3VVV3O4AU1/Battlebot+mk1+top.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Top view, showing the width cutoffs of the 3D print and internal space constraints https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682780331-FDXXLVXMW49ZHHEGGT3K/IMG_20170205_070908.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Chopped carbon &amp; kevlar 3D prints https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682781487-B4RW500YSF7QUHYZI5XC/IMG_20170209_115714+%281%29.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Assembled weapon carriage w/ spring mechanism https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682782142-1SR0FQKOU4XC3MHQ3XZE/IMG_20170211_095050.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Promising start to assembly https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682780888-9O6R06VMFTE3M2D9QPD9/IMG_20170208_172134.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - The point at which I realized wiring was an issue https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682783219-YM14U1CA2WIDA55L81OI/IMG_20170214_111253.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Leveling the AR400 weapon plate https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636684600672-UQ85CJLUO0S6T631FWPH/ezgif.com-gif-maker+%282%29.gif B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Testing the diameter while its still easy to rebore https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682785770-OPTP0H8Z1J15LR80JCIN/IMG_20170216_171321.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Machining almost complete https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636684673197-2MIBFIKUBVMI9TGWMHOI/IMG_20170216_203927.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Waterjet top and bottom plates https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636682784740-C91XKAIS8HEGU39NEWLG/IMG_20170217_000327.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - It fits! (somehow) https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636690157505-DU2C2M3G95CV6MRWDJTL/ezgif.com-gif-maker+%281%29.gif B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Only time it ever spun up... backwards https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/51d1fc73-c326-42d1-96bd-aba0715bb0c7/mk2+bearings.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Make it stand out Bearing layout: note the 2 fixed bearings constraining the location of the circle and the 2 adjustable bearings preloading it https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/23cb8d15-5285-4923-976e-df26c5d016ac/Cross+section.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Make it stand out Adjustment screw pulls the two wedges (green) together, forcing the bearing carriage (white) radially into the rim https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636771054841-SE5ZQDZBBOO23POG3RWQ/V2+side.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Side view https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636771055152-CCFGLLSJ6BYECXPLC9LG/V3+Side+Transparent.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Cutaway view Increased complexity & number of fasteners is necessary for modularity improvements https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636774260012-A09KXFRHDTKM6BVUJY5R/V3+Top.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Top view Note the central cutout for wiring & speed controllers https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636938952927-HLNLK5CXEM593RBTC9M6/PXL_20211114_235331232.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Unassembled parts, showing 3 sections of main frame https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636938949083-ONAEBAMN0S5OHL2Y9UQO/PXL_20211115_001550311.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Assembled 3D prints ready for spin-up and drive tests Notable are the 2 different wheel modules, one optimized for minimal space and one for tread width https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636938947564-H17DWFJJSRSCO58C1KG2/PXL_20211115_002237974.jpg B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Some iterations of various parts https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636938997533-KJ3K5NP1QYL6GFE3YTQ2/ezgif.com-gif-maker+%284%29.gif B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Spinning the drive module https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636938957135-03XFUM7V7HYENMGP6GTP/ezgif.com-gif-maker+%283%29.gif B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - 2 iterations of friction reduction gave this https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/2b15e843-650e-4be8-b529-fb619a51728f/Layout+comparison.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Make it stand out 2 solutions to space: (left) larger machined ring gives more space, (center) baseline existing design, (right) direct drive hub motor w/ integrated drive ESCs & larger bearings https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/cf3778f2-745e-40be-afc7-8fe37f8c8b2e/Version+Differences.JPG B(uild)Log - Ring Spinner Combat Robot v1&amp;2 - Make it stand out Version differences: hyphens indicate no changes from the previous version https://rgulland.com/blog/2021/9/1/bike-trial-shifters monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1628425920225-X7YPV91C8TFGFANY9W6T/PXL_20210624_024636042.jpg B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1628426195740-RNVLE5TAPK4877E26XD4/PXL_20210624_024617313.jpg B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1628425976806-2EJ55DILB38C98ORJ17L/PXL_20210624_024700487.jpg B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630454885274-NIQC8A4QUWPC7SX8FQRB/Handle+11.png B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630455233279-SL9XYMGFBXXFASQ4NZ98/Handle+12.png B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630454918600-VV4F6IVSRD7ERA0Q597P/Handle+13.png B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630455462413-8ICE3JMLMOP47N55XS5A/Assem+0.png B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out This configuration of brake and shifter put the hand in a comfortable position in testing. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630455481678-XQBMD867MDFYW2QQ60OS/Assem01.png B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out A very basic 3D print that prints that holds the parts in the correct orientation. An important detail is the secondary mounting point where an m4 bolt hijacks the brake handle pivot joint’s original shoulder bolt. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630520478046-U2EQJQ0TGD3GK261HFLV/PXL_20210901_181005503.jpg B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out A small revision change after initial install fixed support material, a hole clearance, and added slots so that the part could be mounted without rerouting the brake and shifter cables. (damaged original part on right, fixed on left). It’s important to get all the features down pat before locking yourself in with excessive surface modeling. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630469991127-NE4DBLR6CR5VTKPT6ZD7/Surface+a1.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630470337282-G68VRSHYCAZMC4XOJEHY/Surface+b2.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630470358206-P3PPB52P7JMF6YXNT36R/Surface+b3.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630470407006-87B7MT8XRZDNS005368W/Surface+b4.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630464821965-Z3WG53H8GKND6HEKC0UT/Surface1.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out The initial model had all the right mating geometry but was weak and didn’t utilize space well. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630466366389-7HMK363WSHKTWAJK2004/Surface2.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out All irrelevant faces are deleted and the remaining surfaces are split into usable chunks https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630466747030-THX53I4T1Y7X53NPIH2X/Surface+3.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Resurfacing the model with boundary curves defined by 3D splines allows an aesthetically pleasing, strong shape with few stress concentrators. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630469363177-3MNJUC96T8RXH9F5ST4U/Surface+4.PNG B(uild)Log - Bike modification: Time Trial Shifters - Make it stand out Some mechanical features had to be reintroduced to the model after surfacing was complete and the model was solidified. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476798109-QLZCFT0KZ8WXDNS238XK/235995064_259085092708400_8289383276827440638_n.jpg B(uild)Log - Bike modification: Time Trial Shifters https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476798241-01H2EJOX0Q8V5LECJIO5/236245841_1141086729752985_6361320442403484160_n.jpg B(uild)Log - Bike modification: Time Trial Shifters https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476798650-HQDS71PTYIAZOJAW6RKE/236330341_564321318095609_6073460508318920876_n.jpg B(uild)Log - Bike modification: Time Trial Shifters https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476798852-RNECV66UT2HGPYH7B5B9/240224359_893543607907608_685404149136013081_n.jpg B(uild)Log - Bike modification: Time Trial Shifters https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476799232-5S5O3NRA1RXUQODN0LBB/240563949_232710832115740_8307296379280166329_n.jpg B(uild)Log - Bike modification: Time Trial Shifters - upshift position https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476799413-18ORVGA5VGTGCBNABPWE/240577967_1762948313908982_5367789384473185618_n.jpg B(uild)Log - Bike modification: Time Trial Shifters https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630476834595-VSCU0YKKDRRBGZLZ0NUK/237119103_374697087398919_6011550629951455257_n.jpg B(uild)Log - Bike modification: Time Trial Shifters https://rgulland.com/blog/2020/4/20/vr-accessories monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/44a128ee-1078-4abf-b668-47dedec933a2/Kevin+Present+3.JPG B(uild)Log - VR Accessories - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/22cf81c8-2423-4c93-a52e-47286b9d17f8/Kevin+Present+2.JPG B(uild)Log - VR Accessories - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636185116306-ZRQBLSAITU0JMBKKDRAK/IMG_20191211_171347.jpg B(uild)Log - VR Accessories https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636185116383-QRSWUCC54OXWAHXPTHPG/IMG_20191211_102436.jpg B(uild)Log - VR Accessories https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636185288789-6XKYUQ3T7AJ7C1MJWGUG/IMG_20191211_102448.jpg B(uild)Log - VR Accessories https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/463b6591-7ac5-40aa-9f64-3c65d77e6562/IMG_20191211_171054.jpg B(uild)Log - VR Accessories - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/49817391-21c0-4a29-a71e-73e17265ab11/IMG_20191211_172940.jpg B(uild)Log - VR Accessories - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/76ca7a3c-6dd5-4ece-8733-749bf01632f2/Calcs.JPG B(uild)Log - VR Accessories - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/a58fb9fd-dbbc-4642-ae20-f51f6d40bf69/Beatsaber+weights.JPG B(uild)Log - VR Accessories - Make it stand out unweighted assembly. 3D print in black and controller in light grey. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/b718fb25-d7f9-4ff7-806f-0902dc9e3910/Beatsaber+weights+2.JPG B(uild)Log - VR Accessories - Make it stand out assembly with 2 lb of additional weight. https://rgulland.com/blog/2018/4/18/welding-cart monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1523907771376-XJEML7NY7O0PX7LO0OGY/MVIMG_20180416_152711.jpg B(uild)Log - Welded Welding Cart - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1523907805385-BT9LGDAC4C1MSCV0NXEL/MVIMG_20180416_152816.jpg B(uild)Log - Welded Welding Cart - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2017/12/23/mechanodachi monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1509934319630-NEXU9819Q0E3PL1ZBWX6/Katana.JPG B(uild)Log - MechanOdachi - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514773642861-KC15L8G5N2MQR1YXKWNW/IMG_20171221_075210.jpg B(uild)Log - MechanOdachi - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514773645300-J3KJPU989NV4NVCO0JMG/IMG_20171221_075147.jpg B(uild)Log - MechanOdachi - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514773648258-32AINQPLR2ILNQF9M6TQ/IMG_20171221_075245.jpg B(uild)Log - MechanOdachi - Make it stand out It was a lot of fun manufacturing the blade!. https://rgulland.com/blog/2017/12/19/sledgehammer monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1523744064602-730LKU2MJEZ9VUG08KDM/IMG_20171217_142448.jpg B(uild)Log - $0 Sledgehammer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1523743974939-RM8V360AU8SPLOXNXIGR/IMG_20171217_134901.jpg B(uild)Log - $0 Sledgehammer - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2017/12/5/mit-trashion-show monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/7bcba69c-bfd6-4855-b4a1-af7ad2de5ac3/Trashion-Angels.jpg B(uild)Log - MIT Trashion Show - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1523646795229-VV11GZ4ZRGO3XBA19R4L/20171112-20171112-DSC06732.jpg B(uild)Log - MIT Trashion Show - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514777090967-7Q1LBZ2XQ89KGIJ8GOHO/Trashion+Photo+-+Awards.jpg B(uild)Log - MIT Trashion Show - Make it stand out Khanh and I receiving the two awards https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1514776402746-Q5P2GVM1XPH8MA6JZJ57/image-asset.png B(uild)Log - MIT Trashion Show - Make it stand out Full page image in the physical newspaper https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636155024876-0ZH0Z73ETJXHLVQPAXD3/Trashion-Angels.jpg B(uild)Log - MIT Trashion Show https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636155022380-HUG8FQHD9UF7WWW601EC/25530635_1766372520054106_428885656_o.jpg B(uild)Log - MIT Trashion Show https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636155022376-E3RMXGRQK93D6R5XQP07/IMG_20171126_174424.jpg B(uild)Log - MIT Trashion Show https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636155023288-H8RCRJVO4N0T9GRSFVA7/Trashion%2B-%2BKiss.jpg B(uild)Log - MIT Trashion Show https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1636155023113-TT1LS8QIYMU0NBOY2E32/IMG_20171126_161541.jpg B(uild)Log - MIT Trashion Show https://rgulland.com/blog/2017/10/15/keyboard monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672192201-INQH81QJ896FR3E9NDR9/20171010-DSC06685.jpg B(uild)Log - Keyboard - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672222115-ARCYRUVP6SOTIVSU8ML8/20171010-DSC06696.jpg B(uild)Log - Keyboard - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672129781-2GGTICNJARSZFJVW6UVE/20171010-DSC06654.jpg B(uild)Log - Keyboard - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672222684-TWV7MNJC1SCBLUQT0PRW/20171010-DSC06698.jpg B(uild)Log - Keyboard - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672173297-9QU3IFC7THJ8OXVC4I15/20171010-DSC06678.jpg B(uild)Log - Keyboard - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/2017/10/10/firespinning monthly 0.5 2022-02-16 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507674369163-30NMV27UGJUSCG2ZDK9H/1200px-Fire_fan.jpg B(uild)Log - Firespinning - Make it stand out Standard fan, for reference: not my design!!!!!! https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672886243-2DGHD57WVEO0T4D1TK89/20171010-DSC06633.jpg B(uild)Log - Firespinning - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507673867758-CYR4TAIN7UQO8GWR7MRU/20171010-DSC06709.jpg B(uild)Log - Firespinning - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672852352-U0ZMZSPJL3GZFRQYYFA7/20171010-DSC06627.jpg B(uild)Log - Firespinning - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1507672909477-USYC0O1KQUWWPPC4QON4/20171010-DSC06640.jpg B(uild)Log - Firespinning - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://rgulland.com/blog/category/Design monthly 0.5 https://rgulland.com/blog/category/Small monthly 0.5 https://rgulland.com/blog/category/Personal monthly 0.5 https://rgulland.com/blog/category/Electronics monthly 0.5 https://rgulland.com/blog/category/Product+Engineering monthly 0.5 https://rgulland.com/blog/category/Manufacturing monthly 0.5 https://rgulland.com/blog/tag/Fix monthly 0.5 https://rgulland.com/blog/tag/3D+printing monthly 0.5 https://rgulland.com/blog/tag/PCB monthly 0.5 https://rgulland.com/blog/tag/bike monthly 0.5 https://rgulland.com/blog/tag/3DP monthly 0.5 https://rgulland.com/skills daily 0.75 2021-11-06 https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1505692099380-YGSA6IJXH1YHQ7437B8H/BOTS.jpg Skills As publicity chair, I developed daily marketing content for our dorm, Simmons Hall. https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1524503000497-L045PXDMY74ZFBHPVVBB/IMG_20170723_174020.jpg Skills https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1525120888129-U414N5SSPWBGOGWWF9H7/20161230-DSC03797.jpg Skills https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1545983437903-TXM5MZJUCFPMB06SE936/Quadfreezeframe.jpg Skills https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1630797012529-YIV5GAYEJO6BHZFE4OFJ/rgulland-CSWPA-SU-small.png Skills https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1529104331111-FFJTZ1HDO56CG0OKG72Q/New+Doc+2018-03-06_Page_08.jpg Skills https://images.squarespace-cdn.com/content/v1/59bd856259cc686ce90ae949/1525116324621-Y1H7GKHN37OOKKHNFVQ1/20161230-DSC03797.jpg Skills - 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