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:
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.
- I need to reduce the axis number to 3 (X, Y, E), down from the 4 (X, Y, Z, E) in a normal printer.
- 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.
- 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.
- 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.