WebThis tool room grade "B" Granite Plate has a bilateral accuracy of plus or minus .0001" total instrument runout for precision measurements from a … WebOur granite surface plates are manufactured in three ledge types as well as standard sizes and grades. Plates that have ledges are used for clamping purposes only. The overall flatness specifications of …
Discussion of proper surface plate repair and calibration
WebJul 13, 2024 · Granite is far more cost effective, cut surfaces can be exceptionally flat. Not only can it be hand lapped to achieve extremes of accuracy but reconditioning can be performed without moving the plate or table off-site. It is entirely a hand lapping operation and generally costs much less than re-conditioning a cast iron alternative. WebCALIBRATION / RESURFACING SERVICE. On-site Service for granite surface plates is offered on a daily basis in our Southern California area. 17025 Accredited Calibration Services are available upon request. On … how to screenshot messages on iphone
How to flatten a water stone without a diamond …
WebFor mounting points, we offer threaded inserts on position, dovetails in the granite, or inserted steel bars with T-slots. All our surface plates meet or exceed ASME Standard B89-3-7 2013 and Federal Specification GGG-P-463c. Our standard and custom metrology components include master squares, master angles, parallels and straight edges. WebMar 13, 2024 · The point of the video was producing a flat lapping plate without having a "good" surface grinder available. Having access to a suitably sized grinder would mean you could create and maintain flatness in a single cast plate. ... I needed a couple of flat lapping plates to lap my granite surface tables flat. I used the autocollimator to measure ... WebMay 4, 2024 · Posted February 21, 2014. If you are really desperate, you can do what they did before they had flattening stones, which is rub it on a concrete floor. Granpa used to flatten his stones by rubbing them face to … how to screenshot microsoft desktop