I have a 2 prt question.
- can R&R be performed on a profilometer, can and should be?
- is the standard profilometer is OK to be used on a curved surfaces?
WolfMan Every machine is different, but if I have a curved surface, I manually run the stylus along the length of the surface to make sure the probe doesn't shank out. Our Mahr machine has a Z range of 500um while our Mitutoyo has a Z range of 800um.
I don't know what a standard profilometer is. Do you have a skidded or skidless profilometer? That's going to dictate how well you can follow the a curved surface, as the skidded profilometer has a mechanical filter that is going to vary in position as it moves across the surface.
Does your profilometer calculate the values on the unit itself, or is it computer driven? If it's computer driven, you can do a spline correction to the trace, but I forget if that actually matters for surface finish calculations.