Hello all,
Did my searching beforehand and been jobbing on this all day...here it goes..
First off, I built and have been operating a CRP4848 for the past 5 years with a Hitachi M12VC with no issues running Mach 3. Recently upgraded to the Chinesium 2.2kw watercooled spindle VFD and built a new computer so trying to square away settings...here is what im up against.
MACH 3 Commanded Feedrates dont match Actual gantry drive speeds:
My motors are set to max speeds of 860ish in the motor tuning pages. I have the standard A axis slaved to X on NEMA 23s. Mach 3 will NOT let me set my motor speeds higher than this 860 number for whatever reason. When I hold shift and do a rapid move, My "Units/min" box shows approx 197. I measured the actual gantry movement, and it is showing the actual movement travelled.
When I issue a G1 X25 F60, my "units/min" box shows something like 8.5, and its actually moving at 8.5 inches in that minute. I dont understand where the disconnect is, all units are set to inches and either way, the numbers dont make sense that it is a simple units mistake (IE. 860mm is not 197 inches)
Im stumped. I know this isnt normal because I normally try and run at 60 IPM for hardwoods and its running right now at 8-9, something is wrong.
Any help is appreciated!! go nuts....