Hi Guys,

I'm designing some basic things but I need some clarification regarding the gap that I should leave. If I have a cutout and then into that cutout I insert another part of the same shape, how big a gap should I use? If you add paint, the part that I'll be inserting will become larger, also, CNC machines aren't exactly perfectly precise so this needs to be taken into consideration also, any helpful hints, ideas or links to sites that talk about this?

Thanks.