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is there a guide to choosing proper replacement stepper motors?


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Posted (edited) · is there a guide to choosing proper replacement stepper motors?

so the x axis stepper motor on my machine failed and i need a new one, the only canadian ultimaker supplier is out of stock and i found other suppliers with stepper motors but i have no idea how to determine what will work as a replacement or not. my friend gave me a stepper motor from one of his delta printers but i have no idea how to tell if it is the proper motor or not. it has the same sized faceplate (nema 17 i believe) but the body of the motor is also a bit longer than the ultimaker motor

here is a photo of the stepper motor he gave me.

13046340_998964843515415_1800420239_n.thumb.jpg.2b9ca24b654a864635b1a50d136d18ef.jpg

13046340_998964843515415_1800420239_n.thumb.jpg.2b9ca24b654a864635b1a50d136d18ef.jpg

Edited by Guest
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    Posted · is there a guide to choosing proper replacement stepper motors?

    I only see two problems.

    It looks larger than um2 x/y stepper so might hit the bed.

    And the shafts isn't round. There's must be a reasonwhy ultimaker doesn't use marked x/y motors there but only on the feeder?

    The amps, force and 1.8 degrees seem ok. Worse case you break something :D

    Pololu steppers are cheap, but if you buy them otherplace than ultimaker distributor you will need to solder the propper plastic plug to connect it.

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    Posted · is there a guide to choosing proper replacement stepper motors?

    the motor ended up not fitting properly, is there a list of info i need to know about the stepper motor in order to buy the right one from a company that makes them, cause there are some in canada and the distributor here is out of stock for a few weeks and I really need it as soon as possible.

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    Posted · is there a guide to choosing proper replacement stepper motors?

    You can find some of the information in Ultimaker's GitHub.

    Here is a link to the PDF where you can see the dimensions at least:

    https://github.com/Ultimaker/Ultimaker2/blob/master/1182_X%2CY_Motor_(x2)/B1182-B2P-A.pdf

    But it doesn't show any electrical details, or what brand/model they actually used.

    You could also check this clone...it probably uses a stepper with similar characteristics as the original one:

    http://www.thingiverse.com/thing:811271

    He seems to use this one:

    http://www.robotdigg.com/product/7/NEMA17-Stepper-Motor-40mm-Long,-1.2A

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    Posted · is there a guide to choosing proper replacement stepper motors?

    Also if you use that large one, you can remove the bed white thing since on um2 it's just a cover from dust. On github there's a um2 assembly manual that you can check to reverse the installation and take it out. (i suppose)

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    Posted · is there a guide to choosing proper replacement stepper motors?

    If your in a hurry, did you check Ultimaker's US manufacturing partner? no idea if they ship to Canada at a reasonable price though...

    http://fbrc8.com/

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    Posted · is there a guide to choosing proper replacement stepper motors?

    actually i found the best deal is a website called http://www.robokits.co.nz/ they had them cheaper than anywhere even with shipping included. ultimakers canadian distributor had to order them from a warehouse which takes 2 or 3 weeks plus then shipping to me all while costing more than this UK company to bring it to canada

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