Making a Replacement Screw for a Micrometer Using a Watchmaker’s Lathe
In this video I use my new Wolf Jahn Geneva-style 8mm Watchmaker’s Lathe to make a replacement screw for one of my micrometers. This was my first time ever making anything on the lathe.
chapter index:
00:00 introduction to the micrometer
03:56 removing the broken screw
04:35 overview of the project including the Martin & Fils screw plate
05:49 testing the graver I recently sharpened on the 4mm steel rod
06:39 cutting the workpiece with a vintage graver
16:42 cutting with a new Glardon Vallorbe graver
19:20 using the Martin & Fils 48 B screw plate to thread the screw
21:10 removing some additional material from the workpiece
23:57 creating the thread with the screw plate
29:10 testing the new thread on the micrometer
33:37 deciding to remove some additional material under where the screw head will be
33:50 overview of how I plan to cut the slot in the screw head
35:55 removing additional material on the lathe to make the screw longer
37:01 cutting t
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