bss/buildable-stick-system
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update notes on bolts/plate heights

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Brian S. Stephan 2023-11-10 15:49:26 -06:00
parent f2efee40ee
commit 7d3b4c0a6c
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GPG Key ID: 3DE06D3180895FCB
1 changed files with 7 additions and 6 deletions
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README.md
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@ -37,7 +37,11 @@ What you'll need beyond these objects:
* 4 M3 8mm hex bolts to secure the PCB to a panel * 4 M3 8mm hex bolts to secure the PCB to a panel
* Per frame and plate combo: * Per frame and plate combo:
* 4 40mm M4 hex brass standoffs (or equivalent) * 4 40mm M4 hex brass standoffs (or equivalent)
* 8 12-16mm M4 countersunk hex bolts * 8 M4 countersunk hex bolts
* Overhang plates should use 12-16mm length bolts since they are taller
* Inset plates should probably use 8-12mm bolts --- some standoffs aren't threaded the whole way, making 16mm
too long to go flush
* If making the 40mm standoffs from multiple smaller ones, make sure they have enough length to take your bolts!
* Per frame connection point: * Per frame connection point:
* 8 16mm M4 bolts * 8 16mm M4 bolts
* 8 M4 flange nuts * 8 M4 flange nuts
@ -56,8 +60,8 @@ This is a rough estimate of the cost to produce one of these sticks, assuming a
Filament masses from Bambu Studio estimates, using Bambu PLA Basic. Filament masses from Bambu Studio estimates, using Bambu PLA Basic.
* Left and right frame: **$7.08 USD** (141.84g each, as of 2023-09-12) * Left and right frame: **$7.08 USD** (141.84g each, as of 2023-09-12)
* Left and right top panels: **~$6.74 USD** (~135g each, as of 2023-09-12) * Left and right (overhang) top panels: **~$6.74 USD** (~135g each, as of 2023-09-12)
* Left and right bottom panels: **$5.90 USD** (118.16g each, as of 2023-09-12) * Left and right (overhang) bottom panels: **$5.90 USD** (118.16g each, as of 2023-09-12)
* Miscellaneous mounting plates, decorative plates, etc.: **~$1.00 USD** (~40g, as of 2023-09-12) * Miscellaneous mounting plates, decorative plates, etc.: **~$1.00 USD** (~40g, as of 2023-09-12)
* 8 16mm M4 bolts to connect the frames: **$0.72 USD** (you can get a pack of 100 on Amazon for $9, as of 2023-09-12) * 8 16mm M4 bolts to connect the frames: **$0.72 USD** (you can get a pack of 100 on Amazon for $9, as of 2023-09-12)
* 8 M4 flange nuts to connect the frames: **$0.68 USD** (you can get a pack of 100 on Amazon for $8.50, as of 2023-09-12) * 8 M4 flange nuts to connect the frames: **$0.68 USD** (you can get a pack of 100 on Amazon for $8.50, as of 2023-09-12)
@ -74,9 +78,6 @@ Filament masses from Bambu Studio estimates, using Bambu PLA Basic.
* 8 16mm M4 bolts to connect top plates to frames: **$0.72 USD** (you can get a pack of 100 on Amazon for $9, as of * 8 16mm M4 bolts to connect top plates to frames: **$0.72 USD** (you can get a pack of 100 on Amazon for $9, as of
* 8 12mm M4 bolts to connect bottom plates to frames: **$0.72 USD** (you can get a pack of 100 on Amazon for $9, as of * 8 12mm M4 bolts to connect bottom plates to frames: **$0.72 USD** (you can get a pack of 100 on Amazon for $9, as of
2023-09-12) 2023-09-12)
* You may be tempted to use 16mm M4 bolts for both the top and bottom, but the spacers I have aren't threaded all
the way through the shaft, and 16mm bolts won't make it all the way on the bottom panel, but do on the top panel
(which is 5mm thicker); be careful I guess
With an enclosure coming in around $26, depending on your choices --- say, ~$30 for TheTrain's RP2040 Advanced Breakout With an enclosure coming in around $26, depending on your choices --- say, ~$30 for TheTrain's RP2040 Advanced Breakout
Board, ~$60 for Sanwa buttons and a lever, and ~$20 for miscellaneous connectors and wiring --- you can put a Board, ~$60 for Sanwa buttons and a lever, and ~$20 for miscellaneous connectors and wiring --- you can put a