Contraptor

Yes, if you're talking about stepper limits, diagonal moves can be executed faster. The GCode interpreter calculates correct feedrate regardless of direction, i.e. diagonal move of 10" will complete in 1 minute at 10 IPM. There is also more vibration with diagonal moves which can cause issues like skipped steps. All-thread leadscrew drive can run unloaded at 20 IPM, but that's about the upper limit.

Hi,

I have not tried the g code interpreter that was written for the arduino, but it would be interesting I think to connect the controllers to a PC running Mach3 to compare what effective tuning can do. I'm kind of doubtful that the arduino can do all that black magic that a carefully tuned and mature software kernel like Mack3 can do. There is a lot to get right to fast movement, good steppers, good drivers, good power supplies and well tuned software are definitely all required.

Thanks C.