Machine Slow on Curves

[swisscheese]

Hi,

Yes I've played with values of both p and q and the change was minimal, if any.
The acceleration of x and y is about 110 mm/s^2 and z is about 95.

You're running linuxcnc aren't you? Does your machine act the same way with curves made of small straight lines?

[Jonathan]

The acceleration of x and y is about 110 mm/s^2 and z is about 95.

Therein lies the problem - the acceleration is just far too low. You want at around 500-1000mm/s^2 on a CNC router, so re-tune your motors to obtain that. You will probably have to reduce the rapid feedrate a little.