Note: The Duex4 is not compatible with the Duet Wifi.
Note: The Duex4 0.2a is no longer available, it has been discontinued. We have a few v0.2 boards left, but they do NOT have an analog GND. As described this blog post: http://blog.think3dprint3d.com/2015/04/duex4-v02a-minor-updates.html, this omission leads to noisier temperature readings on the expansion board than on the Duet (as documented with a fix, by David Crocker). Most users have not found this to be a problem.
The Duex4 is a 4 channel expansion board for the Duet (not the Duet Wifi). 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- 1 October 2016 we have been supplying a slightly revised Duex4 expansion board, Version 0.2a. Please take note of the change documented in this blog post:
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:
It is Open Hardware, both designed and manufactured in the UK.
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