Which kit???

[John11668]

Further to above I resolved the licence issue with UCCNC managed to get running in that.
It shows the same issues , sometimes a motion will move , sometimes it wont .
Sometimes this one , then that, then the other .

If it happens on both platforms that suggests to me it is not the software which is the issue ,
I have changed both leads so they should not be the problem. Breakout is CNC4you, KK01 with 5 volt supply via usb.
I dont think it is the microstepper driver wiring cos the problem occurs on different motions, rather than any particular one.

So where do I go from here??????????

[dazp1976]

Further to above I resolved the licence issue with UCCNC managed to get running in that.
It shows the same issues , sometimes a motion will move , sometimes it wont .
Sometimes this one , then that, then the other .

If it happens on both platforms that suggests to me it is not the software which is the issue ,
I have changed both leads so they should not be the problem. Breakout is CNC4you, KK01 with 5 volt supply via usb.
I dont think it is the microstepper driver wiring cos the problem occurs on different motions, rather than any particular one.

So where do I go from here??????????

I would pull all the wiring and check the lot.
Then if it's broke fix it and reinstall. Should eliminate any possible wiring defect.

You could try another board too if you really wanted to. You can get one similar to the KK for less than £10.
Same as the one I have ran for 3 years (£5 at the time).
https://www.ebay.co.uk/itm/5-axis-CN...cAAOSwbP1aZvGa

[Doddy]

You could try another board too if you really wanted to. You can get one similar to the KK for less than £10.
Same as the one I have ran for 3 years (£5 at the time).
https://www.ebay.co.uk/itm/5-axis-CN...cAAOSwbP1aZvGa

Cautionary note to OP; linked BoB - if you're looking to replace the BoB, above linked item (which I also use, as do many of us) requires a separate 12-24VDC power supply - it supplies the Opto-isolators used for limit switches and e-stops. Also, for the 0-10V spindle supply, if required. This, independent from the 5V supply from the USB lead.

Just want to make sure that any decision you make is fully understood.

[dazp1976]

Cautionary note to OP; linked BoB - if you're looking to replace the BoB, above linked item (which I also use, as do many of us) requires a separate 12-24VDC power supply - it supplies the Opto-isolators used for limit switches and e-stops. Also, for the 0-10V spindle supply, if required. This, independent from the 5V supply from the USB lead.

Just want to make sure that any decision you make is fully understood.

If you disable all the limits, stop etc though in mach etc, it's a cheap way of just testing the axis movements without needing to have a 24v supply. Just to test the KK board axis movements themselves aren't a problem.
Just don't move them to their ends.

I've never been a fan of the KK board anyway tbf.
Having everything on the same 5 volts always seemed a bit iffy to me. Especially when it came to e stop, limits, relay etc.
Everything else I see has 5v and 24v to isolate the inputs and outputs from each other.

Now I've mentioned that, that is worth ruling out. I mean the board I linked uses the 5v for the outputs and a seperate 12-24v for the inputs. Thus isolating inputs and outputs from each other

I have no VFD type spindle drive but I also have no cable sheilding and I'm using 3 axis with proximity sensors on the limits and seen no problems thus far.