I'm sure this question has been asked many times before so I'll keep it short and sweet. I have a new CNC Taig mini mill and want to be able to control the cutter speed with the G code (Mach3 software). I ran across a web site last week that had an add on kit but cant see to re-find it. I'm new to this so just point me in the right direction and I'll leave everyone alone.
Thanks
-John