- Joined
- Dec 18, 2019
- Messages
- 7,424
I would think the magic number is near 5080. 5 um = 0.005 mm = 1.9685039370078743e-4" (give or take) 1/1.9685039370078743e-4 = 5080.
3" x 5080 counts/in = 15240 counts.
@RJSakowski 's method is very good and easy to set up. Clamp a 123 block to the table and make it true to the table. (Sweep both perpendicular faces to be sure.) Put in a 123 block butted to the clamped block and measure that face. Remove the 123 block and move the table to the clamped block and measure. Assuming a nominal 5080 counts/inch, you ought to get 3.0000" if your removable 123 block is on size. One is always approaching the block(s) the same way. I used a 0.0001" indicator to know when I was at the face (used the same reading for both faces) to ensure contact consistency.
3" x 5080 counts/in = 15240 counts.
@RJSakowski 's method is very good and easy to set up. Clamp a 123 block to the table and make it true to the table. (Sweep both perpendicular faces to be sure.) Put in a 123 block butted to the clamped block and measure that face. Remove the 123 block and move the table to the clamped block and measure. Assuming a nominal 5080 counts/inch, you ought to get 3.0000" if your removable 123 block is on size. One is always approaching the block(s) the same way. I used a 0.0001" indicator to know when I was at the face (used the same reading for both faces) to ensure contact consistency.