Cardboard spool cap
thingiverse
Cap to (hopefully) keep your spindle from ruining your cardboard spool. I made a cardboard spool (http://www.thingiverse.com/thing:1550) a few weeks ago. I finally got tired enough of hand-feeding filament (and occasionally ruining a part as the z platform was pulled off the nuts by filament tension) to suspend my spool over the Makerbot. Instructions 0) Resize if necessary. My spindle is 8mm, so I use 10 mm for the spindle hole. 1) Print two. 2) Push one in on each side of your cardboard spool, with the sleeve & spikes going into the spool. If the spikes don't want to go in, pull it off & make guide holes with a nail. 3) Hot glue or otherwise adhere the cap to the cardboard if you don't think the friction will keep it. Print a suspension system: http://www.thingiverse.com/thing:6764
With this file you will be able to print Cardboard spool cap with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Cardboard spool cap.