Robo 3D Minimalist Cable Holder

This tiny little thing sits at the top of the right smooth rod on the Robo 3D printer, to hold the cable bundle. There's a thing for this in the top of the case, but this will work whether you have the case on (as pictured) or off, as many do.

This performs the same function as this thing by melodybliss: http://www.thingiverse.com/thing:209034 ... but is all-printable in one tiny piece. Printed with no infill, it uses only about 1 gram of filament, and printed for me in about 5 minutes.