The Duex4 is a 4 channel expansion board for the Duet. It adds 4 further stepper drivers, 4 more FETS for extruder heating, 4 temperature measurement channels and 4 endstops. In combination with the Duet this allows for a 3Axis printer with 5 or 6 extruders (5 Extruders if paired with a Duet 0.6, 6 extruders if paired with Duet 0.8.5). It uses the same stepper drivers, FETs and digital current setting controller as the Duet and is connected with a (supplied) 50 way ribbon cable. The Duet and Duex4 are available as a bundle.

From 20 March 2015 we have been supplying a slightly revised Duex4 expansion board, Version 0.2a. Please take note of the change documented in this blog post:

http://blog.think3dprint3d.com/2015/04/duex4-v02a-minor-updates.html. 

Please note that due to customer demand, these boards are fitted with pin headers rather than screw terminals for motors, heaters, thermistors and endstops.

The RepRapFirmware supports Duex4. We recommend DC42's Fork available here:

https://github.com/DC42/RepRapFirmware/tree/dev

It is Open Hardware, both designed and manufactured in the UK.

I’m a Return and Refund policy. I’m a great place to let your customers know what to do in case they are dissatisfied with their purchase. Having a straightforward refund or exchange policy is a great way to build trust and reassure your customers that they can buy with confidence.