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2 layers76.2 × 57.2 mmXavPad, the printed circuit board in 3D

Small MacroPad for HACKCLUB

Size
76.2 × 57.2 mm
Copper layers
2
Thickness
1.6 mm
Parts
25
Nets
26
Pads
98
Tracks, vias
88, 0
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
4 Mar 2026
Updated
9 Mar 2026

Overview

XavPad is an open-source printed circuit board by XavierdSeth, from the XavierdSeth/XavPad repository on GitHub. It is a 2-layer board of 76.2 × 57.2 mm with 25 parts on 26 nets, routed with 88 tracks and 0 vias.

Its parts include 12 diodes, 12 switches and 1 IC. It belongs with the keyboards and input boards of this library.

README

README.md

XavPad

XavPad is a 4x3 key macropad which uses KMK. I made this to help me be more productive.

Features:

  • 12 keys
  • Simple case
  • Dual layers

CAD Model:

The entire case fits together with 4 M3 screws. The case has 2 seperate pieces: The Bottom and Sides, and the Top.

<img src=assets/cad.png alt="Schematic" width="500"/>

PCB:

I made my PCB in KiCad

Schematic

<img src=assets/schematic.png alt="Schematic" width="500"/>

PCB

<img src=assets/pcb.png alt="Schematic" width="500"/>

Firmware:

My hackpad uses KMK firmware.

  • Swap between the 2 layers by double pressing the bottom left key
  • The first layer are number pad 0-9
  • The second layer are F1-12

For now it uses KMK but later on I might switch to QMK and add VIA support.

BOM:

  • 12x Cherry MX Switches
  • 12x DSA Keycaps
  • 4x M3x16mm screws
  • 12x through-hole 1N4148 Diodes
  • 1x XIAO RP2040
  • 1x Case (2 pieces)

Parts

25
QtyValueFootprintReferences
12DDiode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12
12SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12
1MOUDLE-SEEEDUINO-XIAOfootprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MMU1

Questions

How big is the XavPad PCB?

It measures 76.2 × 57.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the XavPad use?

25 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 XavPad KiCad files?

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

Can I use the XavPad design in my own project?

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

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