Help with Formula

[[Me...]]

Hello All,
I am trying to get a measurement for a circle. The issue is that my circle needs to be measured constantly 4mm off a plane.
What is the best way to do this?

Thanks in advance
Walter

[[Da...]]

Not sure what you mean, can you post a picture or sketch ?

[[To...]]

My first thought is that he wants to reference the Z value of the plane and then measure the circle 4mm up from that. Unfortunately, the Z value of the plane is coming from the "lower left hand corner" of the plane. (my students might appreciate that one). But that might be ok. Right click in the nominal Z value of the circle and select Formula. In the formula window, locate and select the plane feature in the center column and then double-click on Z value in right column. That will put getActual("PlaneX").z in the formula window. Click at the end of the formula and type +4. Click Ok and close the window. The field will turn yellow indicating a formula.
This will cause the plane to be measured first and then the Z value of the circle will be adjusted to 4mm above the Z value of the plane. I think I said that right.

[[To...]]

Another method is to edit the Z nominal of the circle at 4mm above the Z nominal of the plane. See attached for the rest of the instructions.

[[Mi...]]

Agree with all the above. BUT if the circle you need to measure is BELOW the said plane, the +4 needs to be -4

Just my .02 LOL

[[To...]]

why couldn't it be from the bottom of a c'bore plane? 😃 😃 😃

[[Ro...]]

After all these years, i now know what Tom Oakes looks like......

[[To...]]

🤣 🤣 🤣

[[Ra...]]

Finally, I know what Roberto Flores looks like!

[[Da...]]

I assumed the circle was perpendicular to the plane...not parallel. 😉

[[To...]]

I WAS referring to a circle perpendicular to the plane. The axis of the circle is perpendicular to the plane. 😎

[[De...]]

Another method would be to make an alignment using the plane as the spatial and a copy of the circle for location..

Then you could make your new circle that you need the height controlled tightly to the plane, use the alignment you created.

Now the height of the circle will be 'aligned' to the plane and located on the original circle.

This should give you the best method to measure at a given distance from the plane, even if the plane is not cut at the exact nominal angle. Keep in mind however, that if the hole is not exactly perpendicular to the plane, the measured circle will appear out of round even if it is not, because the alignment will come from the plane.

[[Me...]]

Hello All,
Thanks for the help 😎 . Tom had the idea of what I am looking for spot on. Tom My part is mounted vertically vs. horizontally but the syntax is still good. I will just change X for Z and it will be good.