Need help with a cone measurement

[[Ko...]]

Hello everyone,

I need your help in order to measure the length of the side of the cone with the CMM. I received a new drawing from the customer and there is a 0.5mm length call out which is from the intersection of the through hole and a 90° angle to the intersection of the 120° angle and the 90° angle as you can see on the drawing. Thank you in advance

[[Cl...]]

There are a few ways to do this. One would be to probe three lines (One on each angled surface) and intersect them.

For example. Probe a 2d line on top of the left cylinder. Probe the second line up the short surface of the 60° surface.

Probe the third line up the 45° surface. Intersect the first line with second and the second with third. Create a local

alignment using the first intersection (XYZ origin) Use the second intersection as the planar rotation. Now do a point-to-point

distance referencing that local alignment.

[[Ry...]]

You can also create a cylinder and 2 cones on the 45° & 60° surface. pull the cylinder and 45° cone into an intersection & make sure the "shell" checkbox is selected on for both. Do the same with the 45° cone and the 60° cone.

You will now have 2 circles that you can grab a distance with.

[[Ko...]]

Thank you Clarke for your assistance. I created the lines and the intersection points. For measuring the length I used the polar distance using the 45° angle as my primary datum.  I do not have parts to measure yet but it seems that it will work.

Thanks again

 

[[Ko...]]

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Hello Ryan and thank you for taking the time to review and replay to my question. I have created the intersections but I am not sure how I can check the distance which is oriented at an angle. Could you please help me on this?

Thanks

 

 

[[Ry...]]

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Oh, I did not catch that the leader lines were along the length on the angle of the 45deg surface. Typically when countersinks are dimensioned on drawings, they are parallel/horizontal to the axis of the feature. 

I would use the method that clarke mentioned for this dimension.

[[To...]]

Another post that can't be deleted.

Edited May 23, 2025
Because I can't delete this post.