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7K? How many do you have? I doubt you will ever get them lapped to the precision of a gage block. Quit kidding yourself and just throw them away.
We have over 60 sets.
Worth a shot..
Does anyone know where I can get my rectangular gage block jaws lapped? The length of the jaw is not relevant as we do not use the outside of them, they just need to be flat and parallel. They're worn from years of use and we were quoted about 7k to have all sets replaced. Thank you!
View attachment 235061
?? Many of the makers and several reputable independents offer "wear blocks", missing block fill-ins, calibration and repair.
I've used A. A. Jansson:
Gage Blocks - Waterford, Michigan - A.A. Jansson, Inc.
...but "wear" from MEASURING is never great. One uses these to "vet" a bespoke gage. That one goes out and lives on the shop floor - not the master blocks themselves.
"Jaws"?
What ARE you doing with these? D'you mean "ends"?
The photo resembles my C.E. Johansson / Ford / Dearborn extension set.
We aren't discussing "parallels" or vise-jaw inserts, are we?
And how many is "all sets"?
Eight large would just about buy ONE set of (now a Starrett holding) Weber Croblox or Mitutoyo's best goods at new prices.
I'd call AA Jansson. Here is a pretty good video that shows what all they do. They seem to know gage blocks.
A.A. Jansson Field Trip - A Look Into Precision Metrology - YouTube
did you contact gage block manufacturer about lapping your worn blocks ? obviously they would have the equipment and know how
.
as to cost that same question everybody says they got $100,000 of old stuff and want them back to new condition and have only a $100 budget. there is such a thing as unrealistic expectations
All sets is close to 70 pairs.
Thanks for that. Helpful if it had been the FIRST of your photos, actually.
Carbide-tipped gages, I'd have the same problem long-term at an even higher wear-correction cost if I used the B&S Height-Icator.
However.. smaller, stock, "ordinary" carbide wear blocks, one at SP surface, the other underhung off the Heighticator, I think the long-term cost would be much lower and the setup time for each of many gage sizes shorter as well.
And that's with Old Skewl methods. Obsolete. VERY! That's why I could even AFFORD the B&S goods at all!
For hobby use.
I wouldn't even THINK about obsolete methods in a revenoo shop. They eat-up fully-burdened labor costs first time, every time, forever.
Electronics should be faster, lower cost in use, easier and cheaper to have calibrated.
2CW
Page Two: If what you show - ID measure as far as the block stack goes - is ALL you do?
The "jaws" don't need to be any particular width or thickness. Just have to be reasonably FLAT.
That might not be all that expensive a characteristic to "just buy", even in Carbide.
3CW
All I can go on is what is in the photo. Looks like setting a tri-mic tribe bore gage. Bit of math involved, tri-lobes as they are. Dorsey Gage and similar clans could build a bespoke rig for yah. Faster to use. Less wear issue.you seem to be reasonably clueless as to what these are used for.
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