Hey!
During last months I'm using 3D Coat mostly for 3D printing, which seems to be the best tool for fast prototyping and merging stuff.
Unfortunately my printer is NOT the top quality device. When I create accurate models it always adds 0,15mm of material to each side.
It happens because it's hard to keep proper thickness of heated plastic pouring from the nozzle.
Now... my solution is to create stuff with dimensions lowered by 0,15mm on each side and it works, but I would prefer to:
design proper dimensions (so i can reuse it in better printers later);
save file;
shrink all walls on normals directions by 0,15mm;
export to STL;
be happy with proper print;
There is Extrude option that "inflates" object. I've tried Extrude with negative values but it creates ugly geometry.
One of the silly workarounds is to Subtract component in a cube, creating something like a mold. Then extruding it by amount you want and subtracting our "mold" from another cube.
This way you get thinner model in every place.
Is there any tool that can do something like inverted-extrude?