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Bolt Hobbing Tool for Metal Lathe

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3D model description

This is a simple printable tool for hobbing bolts.

Designed to use (2) R6zz ball bearings from to hob a 3/8in bolt

Can also be used to hob 8mm bolts with 608zz bearings with some minor modification, though a small amount of tape is required to make the bearings fit snugly.

The tool assumes 1/2in from tool bottom to lathe center on a 8x16 lathe.

3D printing settings

Print the hobbing tool at very high infill with support enabled (there is only a small amount of support required)

Remove support, press in the R6zz bearings. Insert the bolt through the bearings with any necessary spacers.

Tighten a nut on the bottom of the bolt. It should be snug, but still allow the bolt to rotate easily.

Put in lathe tool holder and begin hobbing.

  • 3D file format: STL
  • Publication date: 2021/02/18 at 18:16





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