Hydraulic Knurling Tool

With a small lathe like most of us have, a push knurl is a terrible idea, and a pinch scissor knurl in its normal configuration has a one-to-two disadvantage in applying pressure making it hard to get sugfficient pressure to produce a good knurl.

After looking through various alternative designs, Paul & I decided to go ahead building a hydraulic knurling tool. Based on Paul’s initial design I went off and refined the details to come up with a specific plan and draw the CAD design (which I’ll eventually publish when I get it all finished).



After that, I figured I would start on the easy parts (the arms) and leave the rest to Paul ;-)

You can see some photos of the work here and here. The final result is:



Not too bad, although a little rought, and perhaps not quite as accurate as I might hope. Still, at the very least they should work as a proof of concept and hopefully will work adequately for the finished tool.