I have a piece that has an extrude on it and want to mate another object on top of it. Is there a way to reverse cut the extrude from the first part onto the second part?
Create an assembly with both parts mated together, In the assembly, edit the part which you want cut, Go to Insert-features-cavity, then select the other part(s) in the "Design Components" widow. If you want clearance or shrinkage change the Uniform scaling, if not leave it 0.00%.
I tried doing this, but it did nothing to either part. The part I was trying to cut remained the same.
You might also research multi-body solids modeling.
Can you post your parts and let us know what version of solid works you are using.
I can't post the parts but I am using Solidworks 2015. I realized that it wasn't making a cavity because the parts were mated together correctly. I am having trouble mating the parts without having any extruded cuts/bosses to use as a reference.
In my experience the most stable assemblies have parts which are mated to the primary assembly planes. That said, the next best relations are plane to plane, or axis of other parts in the feature tree. Unless it is completely unavoidable then a feature from another part.
Retrieving data ...