[alexccmeister]

Hi guys,

After doing some checking on my motor, I thought about it and took the cncfusion kit off the mill and run the stepper motor without any load. And guess what? With no load and at 3000mm/min, the ballscrew stopped turning while the stepper was still going. I guess this is what you would call a mis-step? Anyway, this was the binding problem I was talking about. Turns out it wasn't the table causing the binding. It was the stepper torque just went south with high speed. I tested this by holding the ballscrew with my hand. No torque at all. In fact I could easily stop the stepper motor with my hand until I reduced the motor speed down to 500mm/min when my hand failed to stop it.

So this definitely has to do with my power supply. Its a 24V 6.3A power unit from Keling. I was warned before its not enough but I never thought its this bad. So now in the lookout for a good power unit to replace the current one. I am looking again at Keling's power supply. Specifically this one:

KL-600-48 48V/12.5A 115V /230V

What do you guys think? 48V and 12.5A is big enough? My Driver is 5056. Base on Keling spec please see below:

5: KL- 5056 Microstepping Driver
Features of this driver
* Supply voltage up to +50VDC, current output up to 5.6A peak
* Optically isolated input signals, pulse frequency up to 400 KHz
* Automatic idle-current reduction
* 3-state current control for less motor heating
* 16 selectable resolutions in decimal and binary
* Suitable for 4,6,8 lead motors
* Stepping on upward or downward pulse edge (selectable)
* DIP switch current setting with 8 different values
* Over-voltage and short-circuit protection

Or should I go with 80V or even 100V? Overkill for an X2? Thanks.

Alex