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.
The complete solution was:
copy the tabular data from the table into another Excel sheet
Add the basic radius to the tabular data which becomes a polar radius from the center of the cam.
Used additional columns to calculate X & Y coordinates from the polar angle and radius for the cam contour.
Z axis column was made to zero and I, J, K vectors for the points calculated from the data.
Saved as a CSV file and imported into a freeform scan.
The complete solution was:
copy the tabular data from the table into another Excel sheet
Add the basic radius to the tabular data which becomes a polar radius from the center of the cam.
Used additional columns to calculate X & Y coordinates from the polar angle and radius for the cam contour.
Z axis column was made to zero and I, J, K vectors for the points calculated from the data.
Saved as a CSV file and imported into a freeform scan.
We're wondering how to import this data into the demon.
