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2 layers306.7 × 100.9 mmKeeb2, the printed circuit board in 3D

Some attempts on my own to create a custom mechanical keyboard

Size
306.7 × 100.9 mm
Copper layers
2
Thickness
1.6 mm
Parts
160
Nets
112
Pads
401
Tracks, vias
856, 62
Pours
1
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
8 Oct 2024
Updated
20 Jul 2025

Overview

Keeb2 is an open-source printed circuit board by SimonRosee, from the SimonRosee/Simax69 repository on GitHub. It is a 2-layer board of 306.7 × 100.9 mm with 160 parts on 112 nets, routed with 856 tracks and 62 vias.

It is built around the ATMEGA32U4-AU. Its parts include 68 diodes, 67 switches, 8 resistors, 7 capacitors and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

README.md

Simax69 Keyboards

Some attempts on my own to create a custom mechanical keyboard

Parts

160
QtyValueFootprintReferences
68DDiode_SMD:D_SOD-123D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 +52
410kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR1, R2, R7, R8
30.1uCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC4, C6, C7
222Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR3, R4
222pCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC2, C3
25.1kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR5, R6
110uCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC5
11uCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC1
1500mFuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolderF1
1ATmega32U4-APackage_QFP:TQFP-44_10x10mm_P0.8mmU1
1AVR-ISP-6random-keyboard-parts:Reset_Pretty-MaskJ1
1AudioJack4Keebio-Parts:TRRS-PJ-320AJ3
1HRO-TYPE-C-31-M-12Type-C:HRO-TYPE-C-31-M-12-HandSolderingUSB1
1KC_0Alps_Only:ALPS-1USW13
1KC_1Alps_Only:ALPS-1USW4
1KC_2Alps_Only:ALPS-1USW5
1KC_3Alps_Only:ALPS-1USW6
1KC_4Alps_Only:ALPS-1USW7
1KC_5Alps_Only:ALPS-1USW8
1KC_6Alps_Only:ALPS-1USW9
1KC_7Alps_Only:ALPS-1USW10
1KC_8Alps_Only:ALPS-1USW11
1KC_9Alps_Only:ALPS-1USW12
1KC_AAlps_Only:ALPS-1USW32
1KC_BAlps_Only:ALPS-1USW52
1KC_BACKSPACEAlps_Only:ALPS-2USW16
1KC_CAlps_Only:ALPS-1USW50
1KC_CAPSAlps_Only:ALPS-1.75USW31
1KC_COMMAAlps_Only:ALPS-1USW55
1KC_DAlps_Only:ALPS-1USW34
1KC_DELAlps_Only:ALPS-1USW30
1KC_DOTAlps_Only:ALPS-1USW56
1KC_DOWNAlps_Only:ALPS-1USW69
1KC_EAlps_Only:ALPS-1USW20
1KC_ENTERAlps_Only:ALPS-ISOSW44
1KC_EQUALAlps_Only:ALPS-1USW15
1KC_ESCAPEAlps_Only:ALPS-1USW3
1KC_FAlps_Only:ALPS-1USW35
1KC_GAlps_Only:ALPS-1USW36
1KC_GRAVEAlps_Only:ALPS-1USW47
1KC_HAlps_Only:ALPS-1USW37
1KC_IAlps_Only:ALPS-1USW25
1KC_JAlps_Only:ALPS-1USW38
1KC_KAlps_Only:ALPS-1USW39
1KC_LAlps_Only:ALPS-1USW40
1KC_LEFTAlps_Only:ALPS-1USW68
1KC_LEFT_ALTAlps_Only:ALPS-1.25USW63
1KC_LEFT_BRACKETAlps_Only:ALPS-1USW28
1KC_LEFT_CTRLAlps_Only:ALPS-1.25USW61
1KC_LEFT_GUIAlps_Only:ALPS-1.25USW62
1KC_LEFT_SHIFTAlps_Only:ALPS-1.25USW46
1KC_MAlps_Only:ALPS-1USW54
1KC_MINUSAlps_Only:ALPS-1USW14
1KC_NAlps_Only:ALPS-1USW53
1KC_NONUS_HASHAlps_Only:ALPS-1USW43
1KC_OAlps_Only:ALPS-1USW26
1KC_PAlps_Only:ALPS-1USW27
1KC_PAGE_DOWNAlps_Only:ALPS-1USW60
1KC_PAGE_UPAlps_Only:ALPS-1USW45
1KC_QAlps_Only:ALPS-1USW18
1KC_QUOTEAlps_Only:ALPS-1USW42
1KC_RAlps_Only:ALPS-1USW21
1KC_RIGHTAlps_Only:ALPS-1USW70
1KC_RIGHT_ALTAlps_Only:ALPS-1USW65
1KC_RIGHT_BRACKETAlps_Only:ALPS-1USW29
1KC_RIGHT_CTRLAlps_Only:ALPS-1USW67
1KC_RIGHT_GUIAlps_Only:ALPS-1USW66
1KC_RIGHT_SHIFTAlps_Only:ALPS-1.75USW58
1KC_SAlps_Only:ALPS-1USW33
1KC_SEMICOLONAlps_Only:ALPS-1USW41
1KC_SLASHAlps_Only:ALPS-1USW57
1KC_SPACEAlps_Only:ALPS-6.25USW64
1KC_TAlps_Only:ALPS-1USW22
1KC_TABAlps_Only:ALPS-1.5USW17
1KC_UAlps_Only:ALPS-1USW24
1KC_UPAlps_Only:ALPS-1USW59
1KC_VAlps_Only:ALPS-1USW51
1KC_WAlps_Only:ALPS-1USW19
1KC_XAlps_Only:ALPS-1USW49
1KC_YAlps_Only:ALPS-1USW23

The 155 most common of 160 parts.

Questions

How big is the Keeb2 PCB?

It measures 306.7 × 100.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Keeb2 use?

160 parts, built around the ATMEGA32U4-AU. 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 Keeb2 KiCad files?

From the SimonRosee/Simax69 repository on GitHub, at the commit this page was made from: the board is v2/keeb2.kicad_pcb and its schematic v2/keeb2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Keeb2 design in my own project?

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

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