I designed this for the robo3d http://www.thingiverse.com/thing:1163130
It is a mount for a js4000. I must say it works quite well and the js4000 is like a gopro but affordable. It is also much easier than a 7lb camera and a tripod and a timlapse controller. It mounts directly to the bed with no screws so it is easy to add on.
it also has wifi which is useless because you cant actually download large files to your computer from it. It just works with smartphone to upload to instagram and whatnot.