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Reducing axis number, changing nature of axes?

Posted by buggy123 
Reducing axis number, changing nature of axes?
August 19, 2021 10:33PM
Long story short, I have a old printer that I've replaced, so I'm breaking it down for parts for automation projects. I have a few projects in mind, but for the first one I need to make some changes that I'm not sure how to do in Marlin:

  1. I need to reduce the axis number to 3 (X, Y, E), down from the 4 (X, Y, Z, E) in a normal printer.
  2. X needs to have two motors driving it in tandem. I'd prefer to run both from separate drivers instead of wiring them in series.
  3. Y is a independent rotational joint, so it needs to handle its position cyclically (rotating 360 degrees from pos0 ends at pos0). Units can be whatever.
  4. Y and E should default to relative movement, but X should remain absolute.

I'm still working on some other details of the project so I haven't had a opportunity to go into Marlin and look for these settings yet. If anyone could point out if a setting exists, or if there isn't one, where i'd find the important bit of code in the source, i'd be grateful.

If it matters, the board is a Printrboard rev D.

Edited 1 time(s). Last edit at 08/19/2021 10:34PM by buggy123.
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