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Stepper motor screw size  

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KRS
 KRS
(@krs)
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Stepper motor screw size

I recently purchased a used Prusa Mini+ and have been steadily working on getting it back to a stable running condition. The Z-axis stepper motor had some heatsink attached to it so I removed it to add a light. The original screws were not with the bag of parts. Does anyone know what size screws these are so I can get some replacements? Thanks in advance.

 

Publié : 22/06/2024 6:12 am
Studio Sagan
(@studio-sagan)
Active Member
RE: Stepper motor screw size

I believe those are M5 screws. The hardware documentation is on Github:

https://github.com/prusa3d/Original-Prusa-MINI/blob/master/DOCUMENTATION/MECHANICAL%20PARTS/mini-z-extrusion.pdf

Publié : 22/06/2024 7:03 pm
KRS
 KRS
(@krs)
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Topic starter answered:
RE: Stepper motor screw size

Yes, the screws which go into the aluminum extrusion are M5. I am looking for the screw size of the screws which actually hold the stepper motor together. (Circled in red on picture).

Publié : 22/06/2024 10:02 pm
_KaszpiR_
(@_kaszpir_)
Honorable Member
RE:

M3 for the exturder motor? https://github.com/prusa3d/Original-Prusa-MINI/blob/master/DOCUMENTATION/ELECTRONICS/mini-motor-kit.pdf

See my GitHub and printables.com for some 3d stuff that you may like.

Publié : 23/06/2024 9:57 am
KRS
 KRS
(@krs)
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Topic starter answered:
RE: Stepper motor screw size

Thank you for the link.  A M3x25 screw works.

Publié : 24/06/2024 1:29 pm
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