Could you upload a screenshot or a sketch of what you need??
You could try using the Intersect command. (But you will have to convert assy to part)
I have just been doing a cast cylinder head and trying to figure out waterways etc and found this produced a quick result.
I originally posted this here:
Try adding the part to a blank assembly, then run save as... part.
Then use the selection "External faces"
Then open the new part and thicken it outward.
Then add the new part to the original part using Insert ---> part.
You can even join the two bodies afterward.
See attached video.
Enclosure2.mp4 11.9 MB
Do a "cavity feature". Very easy to do.
- Edit the component (epoxy) in the assembly.
- Insert > Molds > Cavity (pick the other part) > ok.
I hope this helps,