Printrbot+ Filament Guide
thingiverse
Filament guide that helps align filament with the hobbed bolt. After having several prints fail by filament feed issues, I designed this part to help align the filament prior to the hobbed bolt. Since installation - I've yet to have filament roll off alignment. Instructions I printed this out of PLA. Remove tension screws at top of E-Idler from Print head and open print head exposing hobbed bolt. Mount printed part just behind E-Idler on the print head. When closing and re-tensioning print head - feed filament through slot. Print away!
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