Are there any good resources on understanding how G-code/slicing for belt bed printers works? I'm told the upcoming Creality 3DPrintMill is being used with Blackbelt Cura, which seems to be a fork of a really old Cura modified in some way for belt bed printers, but I didn't find much information on how it actually works.
In particular, do these printers use normal gcode? What is the coordinate system like? Conceptually the axes are not orthogonal but skew (e.g. 45°) to the belt axis, and part of my question is whether the coordinate system is in this skew basis, or somehow transformed in firmware to an orthogonal basis.
In asking this, I'm partly aiming to determine how hard it would be to use existing/unmodified software (e.g. upstream Cura) to slice for such a machine, possibly with postprocessing of the gcode.