Rye,

Glad you found your issue.

Never been one to trust the onboard DSP's myself. They are ok on 3D printers but you really need to be able to read and edit GCode on the fly on many occasions. I have a laser with onboard DSP but again, I end up only using it for well established parts, the rest of the time it is plugged into a laptop to allow easy modification of speeds. My suggestion would be to have a look at the training material on Mach3 that they have on their website, it opens up a lot of possibilities otherwise not possible with onboard DSP's. Even if you use the demo version, limited to 500 lines, you can still do some very cool things.

Regards

George