Space Shuttle (CNC version + double connector)

I modified zenziwerken.de space shuttle to be better suited for CNC cutting using bCNC CAM software and 3.175mm endmill. Also i've added secondary connector to prevent breaking of boosters and optional frame.

Before cutting, you should scale this (eg. using LibreCAD) so that the slot in middle is 0.1mm wider than thickness of your board. Obviously you can't use endmill thicker than your material (and therefore this slot).