A friend came over to my workshop who knows more about cnc electronics than I and we went ahead and adjusted the Max Speed Preset on the Sprint Drive. Bit by bit and testing with a handheld tachometer we got the speed up to just shy of 5000. The power is still a bit lacking, but a marked improvement...

Hi All :D I have a Novamill that has been converted to run on Mach3 by a previous owner. I would start by saying I am relatively new to CNC machining and my electronics knowledge is limited. The short of it is the rated speed printed on the machine specification label is 3000rpm, my understanding is...