the easiest way to explain is to read this: https://hackaday.com/2016/07/27/3d-prin ... layer-fdm/
It will work with cartesian machines but is a system deltas were made for !
Also is there any chance of implementing delta print areas properly ?
At the moment I have to set a square build plate which is either smaller than my actual plate (because I have to set it as the largest cube that will fit on the circular bed) or much larger (when i set it to the actual circular cross section - which is then converted into a much larger rectangle).
So that's one thing that should be really easy - an option to correctly setup deltas.
And nonplaner layer printing - which would be something no other slicer properly implements. Though looking at the article, slic3r is pretty close to doing.