DevCnc Foam by the devCad Team

The Arduino Due is a well know board.

The devCad Team developed a totally new Firmware, optimized for Arduino Due.
This firmware will be stored inside Arduino Due directly on devCnc Foam startup, when you select it as the actual controller.

Using this setup you can:

1. Build your own controller, adding the preferred stepper drivers, limit switches and an optional HotWire management circuit/board.
2. Build an Usb interface to an old parallel port controller

Please note: the Arduino Due pin voltage is 3.3 v. So you cannot use a standard Ramps 1.4 shield and you must verify your steppr driver will commute well at that voltage. Also don't apply 5.0 v to input pins, this can damage the board.

Build your own controller

This can be a good choice if you want for example to use more powerful stepper drivers, referred to the ones supported by the Ramps shield.
To do that You must just wire the right pins of Arduino Due to your preferred stepper drivers, you can see the pin map table in the bottom side of this page.
You can also add separated limit switches for every axis, like for the Ramps case.
To optionally drive the Hotwire you can use the digital pin 8, and apply to it your circuit/board. It can be for example an electronic switch or a mosfet circuit. Read carefully the Arduino Due data sheet.

Build an Usb interface to an old parallel port controller

If you own an old style parallel port controller, and you want to build an Usb interface, using this option is a simple way to go.
The pin out of Arduino Due in this case follow the most common pin in of parallel port controllers, so the wiring is very simple, also a flat dupont 12 pin cable can be used.
According to your parallel port controller setup you can also wire its limit switches and Hotwire control, if available.
Of course check well the manual of your controller, to have the right setup.

Then, all what you must do is:

• plug in the Arduino Usb port
• select Arduino Due Naked - Parallel Port Interface in the "Controller type and output pins" page of the "Settings dialog"

At this point all the firmare setup will be performed by devCnc Foam, you must only set the right Steps per MM values of your Cnc, see the "Motors" page of the "Settings dialog".

You can find here more info about the pin out map of Arduino Due: