hexagon logo

Thickness of a wedge shaped part

Hi All,
I need to measure the thickness of a wedge/pie shaped part very accurately. Both sides of the wedge are flat, but obviously not parallel by design. (About 0.5 degree angle). I can probe both sides of this part if I stand the wedge up. With my current method, I believe I am getting some cosine error in the measurements, but am not sure. My current method is to establish a coordinate system using one side as the primary datum, call it the "straight" side. I level to X-, set X origin. I then take points at the same Y and Z coordinates on both sides. As you move along Y, the part thickness changes. Using the CAD I pull the vector for the "angled" side and set the points to the same Y and Z as the "straight" side. I also am using the smallest diameter probe I have. Does this approach sound correct? Customer is questioning my results so I want to make sure I am doing this the correct way.

Thanks!

Parents
  • I should clarify, I meant thickness at each of those individual locations. Basically shortest distance between opposing points at a set Y and Z location. I'm torn between methods and don't know which is right. Method 1: The fixed Y&Z location for both straight and angled... and the method Matthew just described. The print does call one side "straight" and calls it a Datum. There also is a profile call out to that datum.
Reply
  • I should clarify, I meant thickness at each of those individual locations. Basically shortest distance between opposing points at a set Y and Z location. I'm torn between methods and don't know which is right. Method 1: The fixed Y&Z location for both straight and angled... and the method Matthew just described. The print does call one side "straight" and calls it a Datum. There also is a profile call out to that datum.
Children