- Joined
- Jun 12, 2011
- Messages
- 581
I need some step calibration blocks for an ultrasonic thickness gauge, easy enough to make but my question is how many thousands oversize should I leave the machined 4140 metal for final filing, sanding and polishing to the final dimension. I am thinking .003 above my final dimension and I know I could simply experiment and determine this but I am short on time and long on work currently.
Thanks,
NXr
Thanks,
NXr