Modified Printrbot Simple Filament Guide with Marker Guide
thingiverse
The text has been rewritten as follows: I upgraded my existing filament guide by adding a marker indicator to identify the colored filament during extrusion. I did this by attaching a specific design (http://www.thingiverse.com/thing:11742/#files) on top of an earlier filament guide modeled after another design (http://www.thingiverse.com/thing:128240).
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