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2 layers249 × 99.5 mmTenax, the printed circuit board in 3D

Tenax is a direct pin/diodeless split keyboard.

Size
249 × 99.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
54
Nets
73
Pads
390
Tracks, vias
331, 6
Pours
1
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
26 May 2022
Updated
14 Dec 2022

Overview

Tenax is an open-source printed circuit board by heyitscassio, from the heyitscassio/tenax repository on GitHub. It is a 2-layer board of 249 × 99.5 mm with 54 parts on 73 nets, routed with 331 tracks and 6 vias.

Its parts include 36 switches, 2 ICs and 2 connectors. It belongs with the keyboards and input boards of this library.

README

README.md

Tenax

Tenax is a direct pin/diodeless split keyboard, based on the Blackpill dev board. with pinkie splay.

Pictures

Overview Close view

Features

  • No diodes
  • Simple
    • No rgb
    • No oled
    • No buzzer (why someone would use this)
    • No having fun
  • Cheap to build
  • Moderate stagger
  • Pinkie splay
  • More memory, storage and clock than pro micro based boards
  • Simple and comparatively fast to build

Bill of Materials

ComponentQuantityComment
Blackpill2Weact Blackpills
(Optional) Round socket headers4 pieces with 20 slotsSockets
PCB2JLCPCB
PJ-320A TRRS Jack2TRRS Jack
Plates2 bottom plates 2 top platesfile ready to production in ./production/case/tenax-plates.dxf
3mm M2 screws20Screws
8mm M2 standoffs10Standoffs
Hotswap sockets36Kailh Hotswap sockets
Switches36Any MX compatible switch will work

Build Guide

I'm too lazy to create a build guide, but the cantor keyboard build is similar, so it can be used as reference, together with the hotswap sockets part on the corne guide.

Parts

54
QtyValueFootprintReferences
36SW_SPSTtenax:CherryMX_HotswapSW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +20
10MountingHoletenax:M2_HOLE_v2H3, H4, H5, H6, H7, H8, H9, H10, H11, H12
4Breakaway Tabstenax:Breakaway_TabsH1, H2, H13, H14
2AudioJack4tenax:MJ-4PP-9_1sideJ1, J2
2YAAJ_WeAct_BlackPill_Part_Liketenax:BlackPill_STLINKU1, U2

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Questions

How big is the Tenax PCB?

It measures 249 × 99.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Tenax use?

54 parts. 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 Tenax KiCad files?

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

Can I use the Tenax design in my own project?

Its repository states no licence, so its author keeps all rights: ask heyitscassio before reusing the design.