ROBO3D R1_Filament _Colorizer

This thing is a filament colorizer for the Robo 3D R1 or R1+ it fits in the slot at the top of the printer and the filament is threaded through it. A Sharpie Chisel Tip marker felt tip must first be slit with a razor so the filament can ride in the slot. It is inserted into the hole on the front side and oriented so the tip angle is vertical in line with the filament. As the filament passes over the marker color is applied. The newly colored filament then enters the extruder where the color mix