Specs:
Nema 34 3.5 amp 1600oz/in motors
DM860A drivers / 2000step/rev
BL-MACH-V1.1 ST-V2 Breakout Board
16mm ball screws 5mm pitch - 10160 steps/unit (inch)
Mach3 Software - Version R3.043.062
Windows 7 Pro OS
When I open the motor tuning screen and tune the motors to 50ipm and velocity of 10 in/sec/sec. all the axis's move smooth and motors sound fine. After I save the settings and exit and move any axis the motors sound choppy and not at all smooth. I have tried adjusting everything ipm, velocity, kernel, nothing has helped. Any help or suggestions would be greatly appreciate. Thanks for your support.
Computer needed more rams....... Baaaaaa!
I'm using optiplex too, 4gb ram, 2gb pci-e gfx card, but using XP os instead. Win7 is too bloated.
I have the same breakout board type. I'm suspecting you were you using the on-board graphics chip?.
What CNC machine have you got?
I've tried those 1600oz motors before on a PM25 size mill and litterally threw them in the bin. Inductance was terrible.
Couldn't get above 1000mm/min (40ipm) without stalling or screaming (on 60V).
I learned the hard way as a newbie
I changed to some 566oz (on 60V) and the machine flies.
Cam rapid at 3000mm+ (120ipm) and accel at well over 1000. I'm lmited by kernel. Going to upgrade to a UC300ETH.
5mm screws, drivers at 3000/rev, motor 600, kernel at 35000.
(I use mm)