Here is something for the lathe thread cutters and mills:
Now everything (except of probing with G31 on my mill, but that is a different topic) runs with PoKeys57CNC. Motion is very smooth, limit switches working, PWM, ... but the feed rate on both of my machines runs never as commanded. When I command in the G-Code (metric, G21) G1 X10 F10, it will run the x-axis with 6.40 mm/s instead of 10 mm/s. I also tried it with inch settings, but with the same result. Weird!
The FRO is set to 100% (sure, I can get the feedrate to the desired 10 mm/s if setting the FRO to 156%, but that is not the point).
This behavior is totally reproducable and independant from settings like exact stop, css or whatsoever. I clocked the motion with a stopwatch and indeed, it takes this strange factor of 1/0.64 = 1.56 longer as desired to drive (any axis) a certain distance.
This is very annoying, especially when I want to cut threads on my lathe (because during threading, the FRO is locked to 100%).
And, yes, I could work around with generating G-Code which commands the CNC always this 1/0.64 factor faster than desired, but that is obviously not the way to do it.
Has somebody seen the same or an solution for that?
Regards,
Carsten