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2 layers123 × 77 mmTapir36, the printed circuit board in 3D

Minimally spaced MX ergo split

Size
123 × 77 mm
Copper layers
2
Thickness
1.6 mm
Parts
46
Nets
43
Pads
250
Tracks, vias
421, 19
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20210722)
Created
10 Aug 2021
Updated
10 Oct 2021

Overview

Tapir36 is an open-source printed circuit board by madebyperce, from the madebyperce/tapir36 repository on GitHub, published under the MIT licence. It is a 2-layer board of 123 × 77 mm with 46 parts on 43 nets, routed with 421 tracks and 19 vias.

It is built around the WS2812B. Its parts include 21 diodes, 18 switches and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

README.md

tapir36

Minimally MX-spaced reversible ergo split board

Updates

Rev 1.1 has:

  • Updated diode footprint silkscreen -- easier to understand diode direction
  • Updated MCU silkscreen -- easier to understand which set of holes to solder
  • Moved MCU and TRRS female jack receiver up to resolve desing issue of PCB in way of TRRS jack
  • Added reset switch pads
  • Simplified Tapir art
  • Increased font size of text

Parts

46
QtyValueFootprintReferences
18D_Smallperce:D_MiniMELF-DoubleSideD1, D2, D3, D4, D5, D6, D7, D10, D11, D12, D13, D14, D15, D16, D17, D18 +2
18SW_Pushperce:MX-reversible-min-spacingSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18 +2
3WS2812Bperce:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mmD19, D20, D21
2,
2Val**foostan kbd master kicad-footprints-kbd:thread_m2Ref**, Ref**
1LOGOperce:tapirG***
1ProMicroperce:ReversibleProMicroU2
1TRRSperce:TRRS-PJ-320A-dual_slimU1

Questions

How big is the Tapir36 PCB?

It measures 123 × 77 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Tapir36 use?

46 parts, built around the WS2812B. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Tapir36 KiCad files?

From the madebyperce/tapir36 repository on GitHub, at the commit this page was made from: the board is v1.0/kicad/tapir36.kicad_pcb and its schematic v1.0/kicad/tapir36.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Tapir36 design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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