I want some inside and outside calipers without scales at all for the bench, but just haven't run across the right ones when I had money to spend. Fit by feel, not by nummers.
I also have a fine Vernier made by George Scherr in Minnesota. They are 12" with decimal and metric read out.
The last time I used them was probably in 1986 when I worked in a babbit bearing repair shop.I use a micrometer
most of the time with a Vernier scale that reads to 10ths.I used it this morning on a piece of drill rod to see if it was
.1094 or .110 (#35).The dial calipers,I think I have one that use sometimes plus a new one still in the box. I still
refer to them as "Verynear"calipers and when I was working in optics the government inspector forbade their use.
Bob Roller
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Bob, are refering to Optical Tooling as in Building and repairing aircraft fixtures? And doing calibration on those fixtures and anything else they need? If so I have at least 10 years in that field. Only one inspector was classified to inspect our work and he couldn't tell us what to use to accomplish the mission.
I used calipers and micrometers so much for so many years that I almost always have one with me when doing gun work. Personally, I need one to build a rifle. They are so versatile they can be used to measure outside, inside, and depth. Also you can scribe a very accurate line with one.
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This inspector thought he was "the"authority on all things. The shop I was working in
at that time was a reactivation of a long dormant lens maker that got rich with WW2
contracts and they had decided to have another go at it.We made lenses for prisms
and other things as well as power packs for night vision equipment.These power packs
looked like flashlight batteries.I made quite a bit of the tooling for some of the lenses
and they were generated on small ,very fast Bridgeport milling machines.
The business was doing well and had a potential to put 500 people to work until the
owners decided to start rebuilding mobile generators for the Navy,the type that was
used on aircraft to keep air conditioners working and restarts of engines.
I was not involved with it but thought it was beyond our expertise but did design an
instrument panel for it that was accepted but we didn't make it. I don't know what
really happened but there was an $800,000 loss on this project that killed the whole
company and we never did find out what happened. It was obvious that something was
wrong when some of the pay checks bounced.That was promptly corrected but by then
I was ready to quit anyway. I went back to my shop work and part timed with Raydon (Don)
Thompson in his European Motors repair business. The Euroklunkers are why we have
owned 7 Lincolns over our nearly 48 years of marriage.
Bob Roller