1. Open the assembly that has both parts
2. Edit the component where you want to declare the equation
3. Edit a dimension value and type "="
4. Double-click on the face of the component that you want to reference a dimension from.
5. Click on the dimension of your choice.
You can also declare Global variables to make your life easier. Also, give your dimensions names that make sense.
Another thing you can do is to use external files for sharing values between multiple components or parts, without the need of having an assembly:
I got some difficulties to grab dimensions of a given sketch of the part1, but that works perfectly.
A dbl-click on the sketch, after an highlighting of the part1 in the FM, and it's OK
Tx a lot, your help is really appreciated.
Now, the equation features of SW are really nice, and very powerful.
A problem is still remaining, yet : to define the number of teeth for a gear having a given pitch, I need a center angle of this pitch.
If I want to parameter the part with the number of instances, a global variable, using this number, and injected into the sketch defining the tooth will give an absurd result, (as expected by me)
Btw, SW don't detect the circular references ( the last straw, about a circular pattern).
I can define a prototype of the number, with a fake object, a first circular pattern, driving the teeth construction, but it's a bit freaky, imo.
Is there something smarter, for this classical dish ?
Tx for your info, but the Summer Edition seems to have not this toolBox.
In fact, using equations, a folder appears in the feature manager, so I have just to declare a relation in the other direction : number of instances = global variable, and voilà.