Old school threading on my vintage Karger lathe

I do some manual single point treading, using the sliding spindle mechanism on my old Karger lathe. It's the next step to make a backing plate for an old Cushman 4 jaw chuck. Fake Mitsubishi inserts I use: https://ebay.to/32nSBCA My inspection microscope: https://www.banggood.com/custlink/KvG... Chapters: 0:01 - Start of the shit show. 0:31 - Cutting the spindle nose register. 2:37 - Cutting the thread lead-in. 4:00 - Setting up the threading bar. 5:00 - Setting the compound slide angle. 5:42 - The first thread scratch. 6:12 - Workout music. 8:14 - Big mistake 8:31 - A look at a broken carbide insert. 9:30 - Turning the insert and dropping a screw. 10:34 - Breaking pointy bit on camera. 11:31 - Rotating the insert and using a magnet. 13:41 - Last pass and the 1 inch tap. 15:52 - Disengaging the threading mechanism. 16:16 - Using a huge threading tap in the vise. 17:00 - Cross threaded result. 17:41 - First test fit. 18:44 - Back in the chuck and re-cutting the register. 20:18 - Second test fit. 21:19 - follow up work and problems drilling bold circle. 22:17 - A look at some broken threading inserts. 23:35 - Looking for some screws. 23:54 - The end of the Shit show.