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