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.
Assuming profile is not to far from y=(24.468/20.5)*sqrt(20.5^2-x^2)+sqrt(2)*(sin(2*angle))^2 (ok, I know, the error max on Y is about 0.6 mmm !), it allows calculating the derivate, so a normal vector... (in the text file, from 0 to 90, then mirror twice).
Maybe measuring once with surface vectors would be more accurate... (then save in a text file and create the scan)...
points 0 _ 90.txt
Assuming profile is not to far from y=(24.468/20.5)*sqrt(20.5^2-x^2)+sqrt(2)*(sin(2*angle))^2 (ok, I know, the error max on Y is about 0.6 mmm !), it allows calculating the derivate, so a normal vector... (in the text file, from 0 to 90, then mirror twice).
Maybe measuring once with surface vectors would be more accurate... (then save in a text file and create the scan)...
points 0 _ 90.txt
We're wondering how to import this data into the demon.
