I've finally given in and upgraded to Mach4 on my 2012 Patriot after running Mach3 very satisfactorily for years. It's a laborious process as everything is different.

My question has to do with spindle control. Under Mach3 and Mach 4 with the Gecko540, spindle control is on Pin14. I've set it to index and pulse frequency for speed monitoring. However, when I issue, say, M3 s500, nothing happens. I know my spindle works under manual VFD control, and in Mach 3. Not sure what is going on here? Has anyone gone to Mach4 yet?

Joe