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How can I save an assembly as a part to use the combine tool? (create a negative shap


New member

I'm Yago and I'm from Brazil.

I need to print a 3D part and this part need to be a negative form of an assembly (M600 PRO Drone image attached). I'm tried to do this using the combine tool from Solidworks 2017.

My question is how can I save an assembly as a part to use the combine tool? The part needs to appear like a solid body and I can't get this result.

I've tried possibilities like:

-Save the assembly as a part;

-Defeature tool;

-Convert to bodies.

The problem is that the final part is not a solid body and the combine tool can't be used or some parts appears like surface and the tool doesn't work.

Could somebody help me out with problem? I can send the files to who needs after because they exceed the maximum size allowed here.

There are two pictures attached to show how I need the negative form.

Thanks a lot.