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As PC printer ports are getting harder and harder to find, an alternative for cheapish CNC control needs to be found in order for linuxcnc to keep working, and growing.

One of the most promising platforms lately is the Beaglebone Black, and still missing was a convenient parallel port replacement for it...

This page will provide further information as things move on.

Get one now

Please allow a couple more days for initial stocks to be built.


Documentation

Pinout DB25

Pin Nr Function
1 Spindle/PWM output
2 XDir
3 XStep
4 YDir
5 YStep
6 ZDir
7 ZStep
8 ADir
9 AStep
10 Estop_Ext
11 XHome
12 YHome
13 ZHome
14 Relay output
15 AHome
16 BDir
17 Bstep
18-25 Gnd

Pinout Axes connectors

There are 6 connectors available for X,Y,Z,A,B,C each with the same pinout:

Pin Nr Function
1 Gnd
2 Step
3 Dir
4 Min limit
5 Home
6 Max limit

Analog inputs

An ADS1015 provides 4 additional analog inputs.

Pin Nr Function
1 Gnd
2 VDD 3.3V
3 Analog 0
4 Analog 1
5 Analog 2
6 Analog 3

Status

2013.10.03 - Schematic v0.4

2013.10.05 - Layout v0.4

2013.10.09 - First 2 boards are ready for soldering

2013.10.17 - ran the first motors on axes X,Y,Z,A - everything ok so far

Pictures






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Copyright © 2005-2011 Alex Joni