Extruder drive kinematics, Corexy extruder = X+Y+Extruder

[jimmyoh]

ok,

I have a CoreXY printer with a direct drive feeder and I'm trying to lighten the print head assembly.
What I want to do is move the direct drive feed motor off the print head and drive it with a continuous belt.

So I would have the usual U=X+Y V=X-Y, but my extruder would be E=X+Y+E

This gives me A direct drive ( Not Bowden ) feed, Without the stepper motor being on the carriage.
I have looked through the forum, but I don't see anything like what I'm thinking about doing.

Jim

I will create any diagrams and/or visuals required.

[DIY-O-Sphere]

@jimmyoh
Search for REXY here in the forum
https://www.youtube.com/watch?v=i3B4hOpqK4s

[droftarts]

@jimmyoh See https://forum.duet3d.com/topic/22383/new-rexy-kinematics-on-duet-firmware-possible

Not supported at present, may be in future.

Ian

[jimmyoh]

@droftarts & DIY-O-Sphere

Thanks a lot, Exactly what I was looking for!

Jim