Filament Nudger for 3Doodler

For various reasons, the 3Doodler sometimes stops extruding. This can happen with any 3D Printer. However, the 3Doodler is exceptionally easy to get going again by giving the filament a gentle nudge. The Filament Nudger is a hack to reduce the number of times the 3Doodler stalls or jams by providing a continuously nudging force on the filament.

The automatic Filament Nudger was designed to be powered by a pair of rubber bands, and it is cocked by pulling back on the Filament Grabber mechani