Summary Update: Checkout this thing... you can print 3 out at once. http://www.thingiverse.com/thing:865138 This is a remix of http://thingiverse.com/thing:746048. I made the clip twice as thick (total of 6mm) and I closed up the gap a bit more so it holds onto the M3D cable better. I left the filament hole the same. The pictures above are 6mm thick, but I didn't tighten up the clamp part on those. It is tough to notice in a picture anyway, but it does help with the clamp pulling off the cable.