We have a cam lobe that our supplier measures in spec, but when we try to measure the same profile from what's supposedly a nominal cad model it's out of spec. We have a similar part that has the same issue that we sent to Hexagon and was measured using Quindos that was found in spec and the result correlated to the suppliers. The profile of lobe is defined by a tabular data file that looks like this:
We're wondering how to import this data into the demon.
Another way seems to work, calculate the curvature from 3 consecutive hits, and then calculate the vector from the center to the 2nd hit (middle of the arc, so gives the normal vector.)
The graph shows the points and the points + 10*vector normal.
Another way seems to work, calculate the curvature from 3 consecutive hits, and then calculate the vector from the center to the 2nd hit (middle of the arc, so gives the normal vector.)
The graph shows the points and the points + 10*vector normal.