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This is a simple printable tool for hobbing bolts.
Designed to use (2) R6zz ball bearings from vxb.com 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.
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.
Bolt Hobbing Tool for Metal Lathe by Landru is licensed under the GNU - GPL license.
So what's this mean?
We're sure Landru would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!