Whats up with this cone?

[Axel45]

I am measuring a simple chamfer in z+ as a cone and want the angle of the cone. Every time I dimension it come up 90 deg. I know this cant be true. It is more like 30. Does 4.0 do this differently?

[kbotta]

ya'in the right work plane?

[Wes Cisco]

My first guess would be it is a 45 degree chamfer which would be 90 degrees inclusive. To the best of my knowledge the only way to report the angle of a single side in pc-dmis is by using a variable and deviding the angle value pc-dmis reports by 2. If you need an example of how to do this, I think there is one in the code section, if not post again and I will come up with something. I just report the inclusive angles and put a document note in my report that it is the inclusive which is twice the print callout. HTH

[#2#]

I'm guessing you could do a few constructed circles lines and points and then dimension the angle of a line to get the angle of one side of a cone. I think the variable way is going to be a little easier.

[dwade]

I use 3 lines for chamfers. One of the face, one on the chamfer surface and one on the ID/OD. You can depth and angle. All measured square to each other.

[cmmguy]

I use 3 lines for chamfers. One of the face, one on the chamfer surface and one on the ID/OD. You can depth and angle. All measured square to each other.

Exactly what I do in PCDMIS. I have given up trying to make a cone work on chamfers that I just use the "three line method" also.