BZT - A Poor Quality Machine

[JAZZCNC]

I have 250 mbit line here , it is just dropbox that is slow at 36 KB/s

Well where do you think I got it from.? wasn't slow for me.!

[fidia]

Should be able to stream rather than download

[JAZZCNC]

Here's the video it might not be ready yet but it's up there.!!

[DuffelBuffelWuffel]

anyway saw the video , could you check at what speed the communication is set in usbCNC ? 125Khz is the fastest and that is what is generally used (settings tap) Less might be not enough bandwidth or something like that.. It is probably in the manual.
I would just check and see what happens, this is all PC sided anyway, nothing bad can happen.

Check the voltage going to the stepper motor, check the microstep settings and the current limit of the driver.
This looks simular:
https://www.youtube.com/watch?v=vg1p99FGUXA
User had provided 1.3v instead of 3 for his stepper motor.
-Does your pc meet the required specs for Eding CNC ?

These seem to be normal stepper motors so not much can actually go wrong.
Can the drivers be tuned in any way ?

You might also want to check the powersupply voltage while the motor is runing. It might be dipping because of some defect.

[fidia]

Off my head I think it is set to 35Khz (setting pre-set by BZT)

We have tried a 32 bit XP Laptop, 64 bit Win 7 Laptop and 64 bit Win 7 PC and same result with each

http://www.edingcnc.com/wiki/index.p...c-requirements

How can I adjust the voltage?

Lol

1. Return To Vendor is a possible solution
2. Ask for Money back
3. Scrap

[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.

[JAZZCNC]

Some of the digital drives from Leadshine cannot handle 125Khz steprate,they need a setting of 90Khz or lower.

Again not having go at you with this reply it's more for the sake of others who may read it.!! . . . And the OP.!

This is not true at all I've fitted 100's of leadshine Digital drives and they easily handle 125Khz and will infact work perfectly fine at 200Khz or more provided the BOB and Controller can handle it.!

[DuffelBuffelWuffel]

That was directly from the eding cnc manual , I'm not making this up.

[JAZZCNC]

How can I adjust the voltage?

You can't without changing the main psu and then this isn't the problem.! If you want to check for piece of mind test the voltage coming out the PSU or going into the drives.
Looking at how crap that machine is I'd guess it will be between 24-36V.

My advise is don't do or change anything untill we see how the drives are setup and how the controller is tuned regards velocity/acceleration.

[fidia]

Ha ha that statement was a brain dump lol. As I said return to vendor is the best way to adjust the voltage or put it on the 380V line for a minute lol