Ok, note to self, Mach3 will bring a PII-500 to it's miserable legacy knees and hang. Back to the storage room she goes.
I hooked up the "Big Gun" PC, a 2.4GHz with 3G's of RAM running Vista. Kcam working fine but stepper still has a "pulse" noise. Only improvement is that Kcam program does not "hang" on other PC or mouse activity.
Fine, then I installed the Mach3 Trial, configured parallel port pin 2 as step and 3 as direction (same as my working Kcam settings) and E-stop is set to Emulated - using no physical inputs. When I enable Jog and use the manual Jog buttons the X axis readout increments or decrements accordingly but the stepper is motionless and no logic changes are noted on the breakout board.
My assumption is Mach3 "thinks" it's moving the stepper but perhaps I missed a certain setting? Mach3 has soooo many settings....
Can someone who knows the in's and out's of Mach3 help me out?