My Cheapo Chineese 3020t mini CNC Build (more like improvements) leanring all the way

[Zeeflyboy]

You would have thought even craptastically weak motors could move an unloaded x axis back and forth.

Seems likely to me that you may have some binding going on. Does it happen on all axis?

[ravihotwok]

Morning Zee,
yes it does mate. I took the motor off the axes and it spins freely, but if you apply your finger to the output shaft it causes it to go mental

[Zeeflyboy]

That's a bit disappointingly poor! even a little cheap nema 17 on my 3d printer driven from an onboard driver won't do that.

you may need to look at upgrading drivers as well/instead of motors... seems like they aren't giving the motor much juice if they stall that easily.

do you know what drivers you have in there at the mo?

[ravihotwok]

I spotted on another site about the motors something about these being 110v?

will try and find out

[Zeeflyboy]

I spotted on another site about the motors something about these being 110v?

will try and find out

the motors won't be 110v, if anything they'll be talking about the psu input. most switching psu i've seen these days are 110/220v but some do require you to move a jumper.

one assumes if yours was set to 110v it would have gone pop already on 220v.

[ravihotwok]

this is what I have mate

https://planet-cnc.com/product/mk34-...e-accessories/

[Zeeflyboy]

looks like these are the drivers https://planet-cnc.com/product/motordriver-2-5a-32/


says current selectable.... i would say there is a good chance the current is set too low.

[ravihotwok]

hmm, sounds interesting mate. Is this a variable that is changed via the software or manually on the control board?

Cheers

[Zeeflyboy]

i would guess a jumper or pot on the board.