Projection? Help with Dimension.

[EdenG]

Hi guys,

Trying to achieve a dimension (attached) any ideas?

So far I've measured the external 'flange' as a cone. Then after checking the PC Dmis help center, I read that if I measured a circle I could project that selecting the measured circle and a plane (Which I have created on the 'lip') This didn't produce the value I was looking for.

Thanks!
Glen

[UKCMM]

Measure the cone and measure a plane on the lip then use the construct circle to get the diameter.