em
commented
10 years ago Cool! Thanks for fixing tests while you were add it. At some point when I was using it to actually build things I got lazy and broke a bunch of them while making quick fixes. I'll find some time to get them all passing again soon.
I've been using grbl with a bunch of gcode generators which all seem to assume that -Z is towards the work and +Z is where you retract to. This was mind boggling for me at first, and you can see my concerns in grbl/grbl#230
These changes should be backwards compatible with the previous behavior, but allows me to use gcanvas (nice work btw!)