MakerGear M2 filament shield

We installed a dual extruder on a MakerGear M2. The default settings has the both hot ends extrude filament off the side of the print bed before printing. We found that sometimes the filament would harden on the spool of filament and cause it to become lodged in the filament feeder hole. We designed a shield that attaches easily with a small hex bolt and nut to the frame of the M2. Problem solved.