Spool Holder for the Leapfrog Creatr.
It's designed for larger spools.
You will need a M6 screw and a slot nut (green version, filamenthalterung7.stl)

UPDATE (19.06.2014) :
The new version (red, spool-holder-No-2) doesn't need any tools for fastening.

Printed it with 20% infill and PLA.
horizontal shells = 3
vertical shells = 3
all layers = 0,35 mm
fill pattern = rectilinear
printing time: about 4 hours (speed 100mm/s)