BZT - A Poor Quality Machine

[DuffelBuffelWuffel]

Max Step Frequency:The maximum step frequency that the CPU will generate.
For motordrives it is needed to lower the maximum frequency.
In case the driveis unable to handle the high step frequency or low step-pulse width.
Some of the digital drives from Leadshine cannot handle 125Khz steprate,they need a setting of 90Khz or lower.

You could try a few speeds and see what happens.
For the power supply you need to measure the voltage and look if that matches up with what the drives have been made to handle.

Also send a email to the Eding guy , he probably knows instantly why this is happening.

Not being funny towards you saying this but that's total rubbish about voltage. 3V wouldn't even turn that motor.! This guy had loads of issues starting with the fact he's using a laptop with mach with parallel port and won't go into the machine.! . . . . He was telling porky's me thinks.!!

I was just reading the comments looking for a solution for this guy. There are low voltage steppers, I have not looked at the specs of that one.

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Replacing all the electronics by better ones would cost around 500$ , scrapping this is not the solution.
What you have is a set-up issue, there is nothing wrong that can't be fixed with some knowledge or a small amount of money.

Asking on the forum If anyone lives near is not an bad idea.

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Do the other axes work without issue ? if so you might want to switch two of those motors and see if the issue is still there. If the "stalling" motor works just fine on the other axes than it is:
-Wiring issue
-Settings isse
-Rare case driver is broken (try to switch the driver from the other working axis to this one)
- Rare rare case there is something funny going on at that output on the eding cnc board.