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2 layers35.6 × 24.8 mmPCB Test, the printed circuit board in 3D

Various Designs and Files for my CNC machine.

Size
35.6 × 24.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
4
Nets
28
Pads
46
Tracks, vias
97, 0
Pours
2
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
16 Apr 2023
Updated
28 Jun 2025

Overview

PCB Test is an open-source printed circuit board by stefanhepp, from the stefanhepp/design-libs repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 35.6 × 24.8 mm with 4 parts on 28 nets, routed with 97 tracks and 0 vias.

It is built around the NCS210SQ and 74HC137D. Its parts include 3 ICs and 1 connector.

Main components

2

README

README.md

README

Collection of design files and templates for 3D modelling and PCB design.

  • boards: Contains various PCB boards and schematics
  • kicad: KiCAD symbols, footprints and templates (for design rules)

KiCAD Libraries

Symbols

The kicad/symbols folder contains the following symbol libraries:

  • Custom_Symbols: A library of various schematic symbols.
    • R_Pack04_SIL: A copy of the KiCAD R_Pack04 symbol, but using throughhole SIL package footprint and pin numbering, since the standard KiCAD SIL symbols use too much space.
    • Mini-DIN-2x6: Two mini-DIN 6pin units in one symbol, to use with a dual-miniDIN-6 socket
  • `Custom_MCU_Module': A library of MCU devkit symbols.
    • ESP32-DevKitC_fixed: A copy of the Expressif ESP32 38pin devkit symbol, but using alternative footprints.
    • ESP32-WROOM32-Devkit: Symbol for the 30pin ESP32 dev boards.

Footprints and 3D Models

The kicad/footprints folder contains the following footprint libraries:

  • Custom_Heatsinks.pretty: A footprint library for various heatsinks.
    • Heatsink_Aavid_TO-220_H12.7mm: Simple TO220 heatsink
  • Custom_Connectors.pretty: A footprint library for various connectors.
  • Custom_Module.pretty: A footprint library for various MCU devkit modules.

The kicad/3dmodels folder contains the following 3D models, used with the footprints:

Board Templates

The kicad/templates folder contains PCB setting templates:

  • Single-sided PCB, 0.3mm track width (fine tracks, allows routing between pins)
  • Single-sided PCB, 0.4mm track width (coarse tracks, easy to mill)
  • Double-sided PCB, 0.3mm track width (fine tracks, allows routing between pins)
  • Double-sided PCB, 0.4mm track width (coarse tracks, easy to mill)

Additional Libraries, ...

KiCAD Libraries

Board Templates

  • Aisler PCB template:
  • PCBWay PCB template:

License

Shield: CC BY-SA 4.0

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

CC BY-SA 4.0

Parts

4
QtyValueFootprintReferences
174HC137Package_SO:SOIC-16_3.9x9.9mm_P1.27mmU1
174HC137Package_DIP:DIP-16_W7.62mmU2
1ConnConnector_PinSocket_2.54mm:PinSocket_2x04_P2.54mm_VerticalJ1
1NCS210Package_TO_SOT_SMD:SOT-363_SC-70-6_HandsolderingU3

Questions

How big is the PCB Test PCB?

It measures 35.6 × 24.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the PCB Test use?

4 parts, built around the NCS210SQ and 74HC137D. 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 PCB Test KiCad files?

From the stefanhepp/design-libs repository on GitHub, at the commit this page was made from: the board is boards/PCB-Test/PCB-Test.kicad_pcb and its schematic boards/AudioJack-Breakout/AudioJack-Breakout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the PCB Test design in my own project?

Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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