Hi All,
I am happy to report that the spindle speed problem that I have been witnessing for years now is FIXED!!!
I am also happy to report that Page 3 of my document describing PWM Control of Spindles using Mach3 is now inaccurate.
I have downloaded and tested Mach3_Rev3_043_030 from the yahoo site on two different machines as follows:
1. A CNC Mill under Parallel Port Control from a Desktop PC, and
2. A CNC Lathe under Smoothstepper USB Control from an older Dell Laptop.
When I request 500rpm from any input (MDI, From a G Code program, etc.), the spindle now goes to 500rpm as requested, and not some speed slightly higher as in all previous versions of Mach3 that I have used.
Pressing the Spindle Speed Override reset button now has no effect, unless the spindle speed override is set to other than 100%.
Thanks to Sparky whose tenacity is to be envied. Like a bloody bloodhound!!! If ever you are in Queensland, Australia, I owe you a carton of my favourite local brew, *********X Gold.
And thanks to Brian who found the pesky problem and corrected it.
Regards
Chrisjh