Quote Originally Posted by Crusty View Post
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I think I'll give up trying to attract any interest in my method of mounting a QCTP to a small lathe and just let this thread drift wherever it wants to go. If you haven't read my thread about my articulated indicator lathe mount you should read it because after using it a short while I'm convinced that I stumbled onto the best method for holding an indicator onto a lathe - it works that well and takes up the minimum amount of space.
Crusty, I did read your post about the indicator holder mount. Both my lathes have the inverted front edge with the 90 degree V. I also need a carriage stop. Making a quick attach remove clamp for the thick front V is a project still. So I stick a magnetic indicator along this front edge, and have been noticing things being magnetized and swarf sticking to those areas. Even the QCTP holders have some magnetism. A friend gave me the guts from a old table jig saw that buzzed the blade at 60Hz, he scrapped most of it, and installed some fiberglass over the electro magnet. I can't say it works perfect at demagnetizing, but I need to see if this will remove that unwanted magnet.
I've been purchasing those articulating arm indicator holders. Major improvement over the old style with straight round bars. I even splurged on a NOGA, I think that super magnet in the base is the cause of my residual problem on the lathe.


Today I worked on the surface grinder, it came with the most useless face pin spanner wrench. It has 5mm pins. One of the pins slides in a milled slot. Very simple made from rectangular bar stock. So I made two from round bar scraps 3in diameter, about 3 inches long. I drilled out holes in the face at the correct spacing. I had 3/16" drill rod (Oil quench annealed) and used the vertical mill to space the holes accurately. I had a reamer that was 0.001 undersize and that used one of your "swing press" installations. It was looser then I thought, using a 8oz machinist hammer. I did a light knurl on the other end for easy hand grip. One is to tighten the left hand nut on the wheel hub, the other for the left hand nut holding the hub on the motor shaft.
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Thanks for the pdf of the dimension drawing for V belts.