support CNC

[rahulbot]

Pasi suggets:
"""
you ever think of developing that service further could you consider adding option for us CNC router users?

CNC routers have spinning router bit and it can't make hard 90-degree angles like laser cutter can. Instead CNC router leave roundings (with radius matching the router bit used) in inner corners.

I think BoxMaker would work for us CNC users if it would generate following PDF-plans:

Picture shows two ways for doing it. I prefer the B as it makes the joints more cleaner.
That rounding in those inner 90-degree corners would have the radius of the rounding bit so BoxMaker would have to as that from the user.
"""