- Joined
- Feb 7, 2013
- Messages
- 2,487
Here's a morning project made from scraps. The threaded bolt part of the jack was made
from a junked armature shaft from a burned out electric motor. The bottom part was made
from a piece of run of the mill hot roll material. I found it interesting how nicely the
armature shaft machined. It didn't gall at all and the threads came out just skookum. My guess
is that the armature material is 12L14 or similar material containing a bit of plumbum.
You can see the grooved lines on the top of the bolt part which held the mass of the armature.
I left them as is since the look was OK and saved another knurling operation. It will sit in the
tool box and at some point will be p ut to use.
from a junked armature shaft from a burned out electric motor. The bottom part was made
from a piece of run of the mill hot roll material. I found it interesting how nicely the
armature shaft machined. It didn't gall at all and the threads came out just skookum. My guess
is that the armature material is 12L14 or similar material containing a bit of plumbum.
You can see the grooved lines on the top of the bolt part which held the mass of the armature.
I left them as is since the look was OK and saved another knurling operation. It will sit in the
tool box and at some point will be p ut to use.