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General Mach Discussion / Re: Steppers Stop When Driven Below .8 IPM?
« on: November 18, 2014, 06:55:58 AM »Quote
How is an underpowered power supply finally going to bite me?
You may experience skipping. 3D plotting dosen't required the amount of torque that actual machining would require
and also the drive may not use the max current for all 4 motors. So you may get away with the current configuration.
Thus you only need capability to move the axis reliably all the time based on some feedrate.
So why not drop the current setting for all four steppers such that the total power supply is adequate. You want power which is speed x torque with an appropriate / max accel. Since you could have very small moves at some velocity, accel becomes important.
If all's working to your satisfaction leave it alone. If not, try what is noted above. Only time will tell.
RICH