Parallel Breakout Board

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Parallel Breakout Board
Parallel Breakout Board.jpg
Parallel Breakout Board
Status In Development
Manufacterer A Quick CNC
Version 1.0.0
Designer AJ Quick
License CC BY-SA 3.0

The Parallel Breakout Board is one of the simplest and yet one of the most important parts for a traditional CNC machine. This parallel breakout board will take a signal from a male DB-25 connector and will convert the signal to an easy to access terminal block for direct wiring. Pins 1-17 are broken out according to a standard Parallel Port specification. Pins 18-25 are connected to ground.


  • Easy adapter that breaks out the parallel port and converts to board to wire connectors.
  • Access to pins 1-17 of the parallel port. Pins 18-25 are grounded.

Board Layout

The board is 2.80" x 1.80" with mounting holes at 2.50" x 1.50" with 4mm holes (#6 screws can be used if 4mm screws are not available).

Parallel Breakout Board Layout.png


Parallel Breakout Board Schematic.png

Bill of Materials (BOM)

Line # Quantity Part Code Digikey Description
1 1 X1 AE10982-ND DB-25 Male Right Angle Connector
2 2 X2, X5 ED2610-ND 3 Position Terminal Block
6 2 X3, X4 ED2613-ND 6 Position Terminal Block

Gerber Files

Gerber File Download

Eagle Files

Eagle File Download


This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.