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.
This is an idea of the profile (here r=100, but it's only an example)...
Using directly sine ansd cosine of the angle for the vector should give a bad ball compensation...
You have to search the right equation of the profile (look like an ellipse), the derivate it to find the vectors.
You can also measure the same points with two different tip diameter, extract center ball (RAWHIT) and calculate the right vector.
(If you can, post the real radius, it could help...)
This is an idea of the profile (here r=100, but it's only an example)...
Using directly sine ansd cosine of the angle for the vector should give a bad ball compensation...
You have to search the right equation of the profile (look like an ellipse), the derivate it to find the vectors.
You can also measure the same points with two different tip diameter, extract center ball (RAWHIT) and calculate the right vector.
(If you can, post the real radius, it could help...)
We're wondering how to import this data into the demon.
