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Tuesday 20 September 2022

Machinist's jack

 Another little practice project using the lathe.

A machinist's jack. Used to support work, among other things.

I made it from an off-cut of steel I had next to the lathe and some M8x1.0mm (fine thread) screws. The top of the screw head is machined off flat.

I've learnt:

  • Tapping a long thread is hard going. Especially as I only had a budget tap in that size!
    I did drill out some relief on the base, but not as much as I could have done.
  • I don't know how to use the knurling tool properly.
    The result is not as pronounced as I would have expected.

A good first attempt. I'm sure the next will be better.


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