I'd like the ability to make bespoke enclosures for my circuits, etc. Using the Tabbed Box Maker extension for Inkscape, I've milled this box for an Arduino Uno and shield. I haven't glued it yet though. It is all just balancing there and looks slacker than it really is. I need to cut some holes for I/O, power, etc. while it is still a flat-pack.

Cutting these joints with the material flat on the bed produces inside corners that can be no sharper than the diameter of the cutter. I was interested to see how much of a problem that was in practice. I'm pleasantly surprised. I might sharpen the corners with a file or I might not bother. There might be a better way here: Perfect Box Joints - on a Small CNC

It took ages to mill the 6 sides so I'm not sure if this is a realistic way to make bespoke enclosures. I'm very pleased with the first prototype though.

Hackaday Article: http://hackaday.com/2012/07/26/box-maker-extension-for-inkscape/