I designed and glued this camera mount onto my old frame, wich had no mount. It fits a M3 screw. If you dont overtighten it, there is no need for a nut. Take a file and use it on the faces you will glue together, to achieve a rigid connection.
Printed with Makerbot Replicator:
2mm raft height
1.5mm raft width
0.4mm per layer
No supports needed
Added a better curve for the clip, so it wont break if you squeeze it around your camera.