Stepper motors are different models

Assembly questions and answers for the Shapeoko 3 CNC Mill
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AnonymousPerson
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Stepper motors are different models

Post by AnonymousPerson » Fri Aug 14, 2015 3:50 pm

Received the S3 kit yesterday, and now beginning the assembly. First things first (this is my first kit assembly for anything ever), I'm going though the parts list to verify everything is present.

One weirdness already... with the four stepper motors, there are 2 different models:

* 2 x 57BYGH218-X1
* 2 x 57BYGH218-X2

The only other post on this forum mentioning the same stepper motor model, says the suffix is to do with the wiring:

http://www.shapeoko.com/forum/viewtopic ... 218#p48058

So, I'm kind of concerned. Does anyone know if this is, or isn't, a problem?
57BYGH218-X1.jpg
57BYGH218-X1
57BYGH218-X1.jpg (202.29 KiB) Viewed 1115 times
57BYGH218-X2.jpg
57BYGH218-X2
57BYGH218-X2.jpg (200.72 KiB) Viewed 1115 times
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cvoinescu
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Re: Stepper motors are different models

Post by cvoinescu » Fri Aug 14, 2015 4:16 pm

You're supposed to get two of each -- they have leads of different lengths. Please read the instructions to see which goes where.
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edwardrford
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Re: Stepper motors are different models

Post by edwardrford » Fri Aug 14, 2015 4:18 pm

No reason to be concerned. The suffix of the part number (X1, X2) represent the different length wires.

X2 has the longer leads, X1 has the shorter leads. Use the X2 motors for your X and Z, and use the X1 motors for your dual Y.

-Edward
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AnonymousPerson
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Re: Stepper motors are different models

Post by AnonymousPerson » Fri Aug 14, 2015 4:36 pm

Thanks guys. :)

I was comparing against the part list (pg 19-21) of the "Assembly Guide" - April 21, 2015, which didn't make the distinction. Looking at the wiki version of that list now, I can see the two different sets mentioned (long leads vs short leads).

Would anyone object to me adding photos of the parts to the wiki? Thinking it might be useful for other newbies. ;)
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AnonymousPerson
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Re: Stepper motors are different models

Post by AnonymousPerson » Fri Aug 14, 2015 4:53 pm

In my kit, the only other things different compared to the parts list are:
  • S3T03 1.5mm Hex Key, straight ← In mine, it's a ball point.
  • S3T04 2.5mm Hex key, ball point ← In mine, it's 2mm rather than 2.5mm (measured).
  • S3T07 Slip Joint Pliers 1 ← Not present.
  • S3T01 8mm Combination Wrench ← Not present. There are 3 x flat fixed stamped metal things possibly instead though (photo below).
Guessing that's all expected, and just due to the Assembly Guide list being a few months old?
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stamped_metal_things.jpg
stamped metal things
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WillAdams
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Re: Stepper motors are different models

Post by WillAdams » Tue Aug 18, 2015 7:22 pm

The stamped things presumably stand in for wrenches and replace the slip joint pliers.

The 2mm Hex Key is odd --- should be 2.5mm --- for more details see the Tools page on the wiki.
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