Bolt_Hobbing_Tool_for_Lathe_post_12mm
thingiverse
This tool post is for lathe's post 1/4" (12mm) approximately size is area for tool post is long 80mm x 12mm width x 20mm high total dimension 103x 32x 23mm 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 608 bearings. Insert the bolt through the bearings with any necessary spacers. Tighten two nuts 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. 200-400rpm seems to be working fine for M3, M4 hobbing. This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/dOmMWdByVtc
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