Stepper controller is the chip of the board that controls the data sent to the motor. You can’t change it on um2 board because is soldered to it, other printers use removable stepper chips that can be removed/upgraded.
The motors, check the sticker behind yours, you have a long list of letter with the definition. They are easy to find on any pololu reseller, or at a um reseller/distributor.
If you buy the motor elsewhere (cheaper) you will need to twist the pairs (red/blue - black-green) and crimp the cable on the proper socket, or cut one you have and resolder the cables.
A fast google:
https://ultimaker.com/en/community/21674-what-stepper-motor-does-ultimaker-2-use#reply-150479
Model SY42STH38-1684A
https://www.pololu.com/file/download/SY42STH38-1684A.pdf?file_id=0J714
Crimping or soldering isnt an issue at all for me.
Thank you for the link. All the google searches I did, didn't actually come up with any retailers, and lots of confusing messages about them being different sizes and will they fit.
I cant find a reseller in the UK that actually sell them. Most seem to be US based and postage etc.. i very expensive. If i search for that model, I cant seem to find anyone selling them, i get alot of NEMA 17 motors? Any idea?
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neotko 1,417
Stepper controller is the chip of the board that controls the data sent to the motor. You can’t change it on um2 board because is soldered to it, other printers use removable stepper chips that can be removed/upgraded.
The motors, check the sticker behind yours, you have a long list of letter with the definition. They are easy to find on any pololu reseller, or at a um reseller/distributor.
If you buy the motor elsewhere (cheaper) you will need to twist the pairs (red/blue - black-green) and crimp the cable on the proper socket, or cut one you have and resolder the cables.
A fast google:
https://ultimaker.com/en/community/21674-what-stepper-motor-does-ultimaker-2-use#reply-150479
Model SY42STH38-1684A
https://www.pololu.com/file/download/SY42STH38-1684A.pdf?file_id=0J714
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