@Danal I put quite a bit of time and effort into getting the quad to print as a quad and just could never get it to work right. It was at that point that i decided that instead of writing the entire thing off as a waste that i would convert it to a Bowden Single Extruder and re-program the duet. After doing that, i'm pretty happy with it. It's quiet and efficient, and working which is a plus lol.

I have a Crane Quad at work... One of my jobs is to manage a collaboration space/maker space and I purchased the crane quad to go in there.... It has NEVER worked.... I have gone through 2 quad heads and taken the head apart screw by screw at least a dozen times and have yet to have a successful print of any kind, CMYK or plain filament. The plastic sleeve inside the hotend is a joke and never stays aligned with the 4 holes in the hotend causing jams. Hopefully your experience with the Crane Quad is better than mine. I just installed a Bowden Single extruder and reconfigured the Duet 2 Maestro and am now dialing in a Cura profile for it...