[Beezer]

I have finished constructing the controller portion of my first CNC router project and have finally been able to start doing some testing with it using some small Vexta steppers I picked-up, strickly for testing purposes only. Now the motors are not connected to anything but just spinning in air with a piece of tape on the shafts so I can at least have some type of visual reference. I am using the Xylotex 3-axis board and have decided I will most likely be using Master5CNC for my software since it seems to have all the features I want in a program plus it is meant for use with Windows 98, which is the operating system on my Toshiba laptop. The laptop is a 400mhz Celeron with plenty of RAM.

Now I have setup the motor resolution in Master5 as if they were connected to my ballscrews, so going by that my "Pulses per Inch" are at 8000.

Now when I use the Jog function the motors turn fine without any hesitation and when I load then run one of the Calibration sample files, that is contained with the Demo version, that has straight linear movement the motors run fine also. But when I try to run one of the files that has arcs or radiuses I notice the motors will move abit, then pause, then move abit, then pause and so on until the arc or radius is done. Now the DRO display doesn't display any of this but just counts smoothly without any hesitation.

What could be causing this hesitation? I would have expected the motors to be
moving and incrementing continueously maching with the DRO display.
Could this be a error in the motor settings or could it be the computer is too slow? It seems very responsive when it comes to linear interpolation movements.

Is there anything I should double check in the settings?

Thanks,
Carl