Hi All,
Im wondering if you could help me with an issue I run into lately on my first complicated 3d toolpath.
Recently I build a PrintNC CNC machine. Its running Mach4 with an ESS.
I noticed on 3d toolpaths I seem to be missing steps. The only solution so far is reducing the acceleration to less than 40mm/sec2, I feel this is way too slow for what the machine should be able to do, am I wrong?.
Since the gcode I'm running has many small movements, I made some test code and sound some resonance at lower speeds which I cant get rid of. Fast accelerations > 1000 are fine and lose no steps.
Here are some videos to show what I'm talking about.
https://youtu.be/oq0QyY60Eic
https://youtu.be/37ibDpoQdHM

Any input would be appreciated.

notes.
drivers are DM542 @ 36V
Mechanicals have been checked, no slippage.
Tried 1/2 to 1/125 microstep, same result.
Tried different currents.
Tried different stepper.
Tried different driver.
increased look ahead.
changed operating frequency - went really bad then!