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Helical Spring Bending Mandrel

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  • 714 views
  • 1 like
  • 2 downloads
  • 1 collection

License
3D design format
ZIP Folder details Close
  • Circular Jig.zip
    • HelicalMandrel.STL
    • Mandrel_Winder.STL
    • Spring Mandrel Guide.pdf

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Publication date 2023-11-20 at 07:47
Design number 1589593

3D printer file info

3D model description

I needed a helical spring, but no suppliers seemed to have it in the length/pitch/gauge I needed. So, I designed this two-piece mandrel. It is designed to make springs from 0.055” spring steel wire with about 0.7” diameter and 0.5” pitch. By clamping the spring to one mandrel, the spring can be wound seamlessly onto the other, in effect allowing unlimited length. The design takes 27 g of plastic with the recommended settings. Some 1/8” wire is required, and two pairs of locking pliers are needed to operate it. The video shows how it is intended to work.

https://youtu.be/hZpFSU9CqFI

If you need/want a polygonal spring instead of a round one, I'd suggest my spring bending jig:

  • 2.4k views
  • 4 likes
  • 18 downloads
  • 2 collections

3D printing settings

Instructions for printing, assembly, and use are in the included guide document.

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