Handling A Ground-Out Filament - 3D Systems BFB-3000 Manual

BFB-3000 Set Up and Operations Manual
9.5.4

Handling a ground-out filament

If a pressure bearing is poorly assembled, or the nozzle suffers from a blockage (e.g.
printing too close to the bed), the back of the filament may be ground out by the extruder
drive shaft. The drive shaft will then be unable to push the filament down into the nozzle,
preventing the extruder from extruding. This is normally indicated by a fast build-up of
plastic dust around the pressure bearing.
If the nozzle is not
extruding, a build up
of plastic dust can
indicate a ground out
filament.
Remove
pressure
bearing
Document No: D100253 64