Howard Lewis | 23/11/2022 12:29:12 |
7227 forum posts 21 photos | The "Surface Plate" thread, deals with just this. See my post about the need for a surface table to be unstressed if it to remain flat. Howard |
old mart | 23/11/2022 21:15:31 |
4655 forum posts 304 photos | One of the 3 feet square granite surface tables in our fitting shop at work was simply sitting on a bench on top of a sheet of 1/2" thick closed cell sponge rubber. It was checked every year by specialists with all the right equipment and had errors less than 5 microns in any direction which was plenty good enough for us. The tables in the inspection were very likely better. |
Sakura | 23/11/2022 22:30:52 |
86 forum posts 1 photos | Posted by old mart on 23/11/2022 21:15:31:
One of the 3 feet square granite surface tables in our fitting shop at work was simply sitting on a bench on top of a sheet of 1/2" thick closed cell sponge rubber. It was checked every year by specialists with all the right equipment and had errors less than 5 microns in any direction which was plenty good enough for us. The tables in the inspection were very likely better. That was always my experience in the real world. Might have been different in Inspection but I never worked there. |
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