CR-10S Pro stepper recommendation

MartinNYHC

Both Z steppers have the same issue.

G91              ; relative positioning
G1 Z5 F3000	H1	 ; lift Z relative to current position
G90              ; absolute positioning
G1 X150 Y150 F6000 ; go to first probe point
G30              ; home Z by probing the bed

Phaedrux

Does the model label on the motor match what you ordered?

MartinNYHC

Good hint. Yes, they match.

Phaedrux

And what is the model? Maybe we can check the specs again.

Did you try the motor on a different driver to eliminate the Z driver? You're using both motors on the Z driver, correct?

MartinNYHC

https://www.omc-stepperonline.com/nema-17-bipolar-0-9deg-46ncm-65-1oz-in-2a-2-8v-42x42x48mm-4-wires-full-d-cut-shaft.html?search=17HM19-2004S1

Nope, didn't try a different driver. Just connected a Creality 42-34 and it works.

Phaedrux

You miss my point. I'm wondering how the motors will sound when wired to a seperate driver rather than the Z driver which is wired in series internally.

MartinNYHC

Ahhh...ok, sorry Will try it now.

Phaedrux

Well those motors are identical to those I use in my corexy and they do not sound like that at all. Something is amiss.

MartinNYHC

Same behaviour on X/Y drivers.

Phaedrux

Thanks for testing.

At this point I'm not sure what to make of those motors. They sound awful to be sure. I would return them and get something else. Perhaps they aren't as advertised?

17HM19-2004S1 is what you listed above for the X and Y axis. For Z you had listed 17HS13-0404S1, which are you using for Z?

MartinNYHC

For Z it's

https://www.omc-stepperonline.com/nema-17-bipolar-1-8deg-26ncm-36-8oz-in-0-4a-12v-42x42x34mm-4-wires.html?search= 17HS13-0404S1

Phaedrux

Ah, those are quite a bit different than what you had linked above.

https://www.amazon.de/Stepperonline-Stepper-Bipolar-Degrees-Printers/dp/B07Z1D1ZJY/ref=sr_1_1?__mk_de_DE=ÅMÅŽÕÑ&dchild=1&keywords=17HM19-2004S1&qid=1593035734&sr=8-1

Which I see now is actually the X Y motors, not your Z motor.

Unfortunately the Z motors you've got are not a great choice. They are very high inductance. They may still be usable, but you will need to reduce your max speed for z and they may still be loud. It also looks like you've got them set to use 600ma current when they are max of 400ma.

Try M203 Z300 and M906 Z300

These would be a much better choice: https://www.omc-stepperonline.com/nema-17-stepper-motor/nema-17-bipolar-1-8deg-22ncm-31oz-in-1-33a-2-8v-42x42x34mm-4-wires.html?mfp=148-bipolar-unipolar[Bipolar]%2C183-body-length-mm[34]%2C71-single-shaft-dual-shaft[Single Shaft]%2C21-shaft-type[D-Cut]

MartinNYHC

OMG, what have I ordered? I was quite sure that I ordered the one you suggested. Thank you very much vor investigating! Will give them back and get the other ones. Will keep you updated.

Phaedrux

I'd still be curious if M203 Z300 and M906 Z300 improved them at al. Probably still be loud though.

MartinNYHC

Yes, still too loud. Already initiated a replacement.

MartinNYHC

Another (dummy) question: when replacing the XY motors, do I have to adapt the steps? Since i upgraded the motors my printer is only moving half the way it should.

I was under the impression that nothing changes when using the old pulleys and belts.

Oh man....everything's not so easy

A Former User

@MartinNYHC said in CR-10S Pro stepper recommendation:

do I have to adapt the steps?

only if you managed to get motors with different degrees/step. I.e. both 0.9 and 1.8 are relatively common as well as other values exist.

edit: but do carefully check the wiring and the direction they turn in once connected. standarized colour coding is not given with these things.

MartinNYHC

I just came ot my mind: I know have 0.9 steppers, the old one were 1.8. Doubled the steps and everything is good again