Let's make a threading bit and an M10 thread
Now we make a threading bit and use it to turn the external M10 thread on a stainless steel bar.
I play Modest Mussorgsky's "Pictures at an exhibition" on the video.
In this video I use:
Weiler Matador SV (1972) Lathe
Schaublin SV-51 (1955) Milling machine
Chapters:
0:00:00 Opening animation
0:01:01 Introduction
0:02:51 Selecting a piece of tungsten carbide
0:06:36 Shortening the blade shank with a hacksaw
0:07:28 Milling the blade shank to the correct shape
0:15:45 Soldering a piece of tungsten carbide with silver solder
0:20:11 Rough grinding of the blade with a bench grinder
0:24:24 Grinding the blade with a diamond disc
0:31:21 Threading theory: outer diameter of a thread
0:33:14 Threading theory: profile of the thread
0:35:32 Threading theory: thread pitch
0:37:28 Threading theory: thread inner diameter
0:39:16 Threading theory: thread machining angle
0:42:16 Turning a blank for the thread
0:50:11 Cleaning the lead screw
0:53:21 Turning the thread stop groove
0:55:00 Filing bevels
0:58:58 Positioning the tool at the right angle
1:00:34 Checking pitch before threading
1:04:17 Turning an external M10 thread
1:09:46 Final words
1:11:08 End credits
The video is spoken in Finnish but it has good quality hand written subtitles in English, German and Finnish.