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2 layers90.8 × 63.1 mmHackpad, the printed circuit board in 3D

Since I'm the goat, I got 0 errors after I did the DRC check. 😎

Size
90.8 × 63.1 mm
Copper layers
2
Thickness
1.6 mm
Parts
10
Nets
14
Pads
69
Tracks, vias
81, 0
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
7 Jul 2025
Updated
16 Jul 2025

Overview

Hackpad is an open-source printed circuit board by KavEn06, from the KavEn06/MultiPad repository on GitHub. It is a 2-layer board of 90.8 × 63.1 mm with 10 parts on 14 nets, routed with 81 tracks and 0 vias.

Its parts include 6 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.

README

README.md

MultiPad

image

Features

  • Triple layer 3D printed case
  • 128x32 OLED Display
  • EC11 Rotary encoder for volume and scrolling through other shortcut layers
  • 6 keys
  • Very cool swirly design – trust me, it looks awesome in person

CAD Model

The CAD model is held together with 4 M3 screws and heatset inserts. It’s built in three layers: the bottom layer holds all the components, the middle layer keeps the switches in place, and the top layer is mainly there to look nice.

CaseLayers
imageimage

The CAD model was made in OnShape.

PCB

Here's the PCB! It utilizes a XIAO RP2040, which is connected to 6 switches, a 128x32 OLED display, and an EC11 rotary encoder.

SchematicPCB
imageimage

Since I'm the goat, I got 0 errors after I did the DRC check. 😎

BOM:

Here is a list of everything you would need to build the MultiPad

  • 6x Cherry MX Switches
  • 6x DSA Keycaps
  • 4x M3x5x4 Heatset inserts
  • 2X M3x12mm Bolts
  • 1x 0.91" 128x32 OLED Display
  • 1x EC11 Rotary Encoder
  • 1x XIAO RP2040
  • 1x Case (3 3D printed parts)

Parts

10
QtyValueFootprintReferences
6MX ButtonButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6
1GVSCSDMyComponents:SSD1306-0.91-OLED-4pin-128x32J1
1LOGOLOGOG
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmRSW1
1XIAO-RP2040-DIPOPL:XIAO-RP2040-DIPU1

Questions

How big is the Hackpad PCB?

It measures 90.8 × 63.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Hackpad use?

10 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 Hackpad KiCad files?

From the KavEn06/MultiPad repository on GitHub, at the commit this page was made from: the board is pcb/hackpad.kicad_pcb and its schematic pcb/hackpad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Hackpad design in my own project?

Its repository states no licence, so its author keeps all rights: ask KavEn06 before reusing the design.

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