Skip to the content
PCBKitNew board
2 layers80 × 67.5 mmApexPad pcb, the printed circuit board in 3D

Made in Tinkercad. I got tired of fighting with Fusion 360 and switched to Tinkercad.

Size
80 × 67.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
7
Nets
14
Pads
45
Tracks, vias
64, 0
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
29 Aug 2026
Updated
2 Sep 2026

Overview

ApexPad pcb is an open-source printed circuit board by afrazakbar, from the afrazakbar/ApexPad repository on GitHub. It is a 2-layer board of 80 × 67.5 mm with 7 parts on 14 nets, routed with 64 tracks and 0 vias.

Its parts include 5 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.

README

README.md

ApexPad

ApexPad is a minimal 4-key + encoder HackPad mainly designed for video editing. It features an OLED display and uses the QMK Firmware Framework.


Features

  • OLED display with startup animations and more
  • 2-part case
  • Pookie-sized
  • 4 macro keys
  • Rotary encoder for volume control
  • QMK-powered firmware
  • Compact PCB design

CAD Model

ApexPad CAD Model

Made in Tinkercad. I got tired of fighting with Fusion 360 and switched to Tinkercad.


PCB

Schematic

ApexPad Schematic

PCB Layout

ApexPad PCB


Firmware Overview

This HackPad uses QMK Firmware.

ControlFunction
SW1Copy (Ctrl+C)
SW2Paste (Ctrl+V)
SW3Undo (Ctrl+Z)
SW4Split (Ctrl+B, assigned for CapCut)
Encoder SWRedo (Ctrl+Shift+Z)
EncoderVolume Up / Down

And that's it. I might add something else later. 👀


BOM

Everything you need to build this HackPad:

QuantityComponent
1×Seeed Studio XIAO RP2040
4×DSA keycaps
4×MX-style mechanical switches
1×0.91" 128×32 OLED display
1×EC11 rotary encoder
8×M3 screws
8×M3 heat-set inserts
1×2-part printed case

Software

  • QMK Firmware
  • Tinkercad for the CAD model
  • KiCad for PCB design

Hardware

  • Seeed Studio XIAO RP2040
  • 4× mechanical switches
  • EC11 rotary encoder
  • 0.91" 128×32 SSD1306 OLED
  • Custom PCB
  • Custom 2-part 3D-printed case

Parts

7
QtyValueFootprintReferences
4SW_Push_45degMX_Solderable:MX-Solderable-1USW2, SW3, SW4, SW5
1OLED_DISPLAYConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW1
1Seeed Studio XIAO RP2040Seeed Studio XIAO Series Library:XIAO-Generic-Hybrid-14P-2.54-21X17.8MMU1

Questions

How big is the ApexPad pcb PCB?

It measures 80 × 67.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the ApexPad pcb use?

7 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 ApexPad pcb KiCad files?

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

Can I use the ApexPad pcb design in my own project?

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

Similar boards

  • 2 layersEncoder, the printed circuit board in 3D

    Encoder

    byrantech/laptop

    anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.

    7 parts4.3kMIT
  • 2 layers40 × 20 mmSensor smd, the printed circuit board in 3D

    Sensor smd

    scottbez1/splitflap

    DIY split-flap display

    7 parts4.2k
  • 2 layers19.8 × 30 mmZ limit, the printed circuit board in 3D

    Z limit

    opulo-inc/lumenpnp

    The LumenPnP is an open source pick and place machine.

    7 parts3.7k
  • 2 layers35.6 × 58.2 mmDisplay Carrier, the printed circuit board in 3D

    Display Carrier

    AxxAxx/AxxSolder

    STM32 Based soldering station for JBC cartridges, 9-24 VDC and USB-PD power

    7 parts1.7kGPL-3.0
  • 2 layers20.3 × 16.3 mmMap MPX, the printed circuit board in 3D

    Map MPX

    rusefi/rusefi

    rusefi - GPL internal combustion engine control unit

    7 parts1.2k
  • 2 layers26 × 44 mmCompact carrier board, the printed circuit board in 3D

    Compact carrier board

    jamro/tiny-engineer

    A small desktop robot that brings an AI coding assistant to life, physically acting out when it reads files, thinks, writes code, and finishes work.

    7 parts1.1k
  • 2 layers26.4 × 53.8 mmAtari pickup, the printed circuit board in 3D

    Atari pickup

    hoglet67/RGBtoHDMI

    Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

    7 parts1kGPL-3.0
  • 2 layersRj45 breakout, the printed circuit board in 3D

    Rj45 breakout

    rene-dev/stmbl

    AC Servo Driver for STM32F4

    7 parts990GPL-3.0