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Heavy duty printable filament spool by RotoScan is licensed under the Creative Commons - GNU GPL license.
© 2011 by RotoScan
Instructions
Print out and assemble. The dovetail parts should not need any trimming except for part that lies against the build platform. Even so, if you assemble it when it is warm you may not even need to do that.
Wind the filament onto the spool. Start by threading the filament through the holes on the "U" shaped parts. Wind the filament so that it just lies gently in place. When you have finished loading the spool, cut the filament and then press the end of the filament into the built-in clips to keep it from unraveling.
Mount the filament guide onto the cupcake just above the middle bolt as is shown in the picture. The clearance between the spool and the guide should be enough that you are sure that the spool won't hit it as it turns.
* TOM filament guides available here; thingiverse.com/thing:10335
Sketchup file is included.
