Truss rod filament guide
thingiverse
Truss rod based filament guide, for use if you've got a spool that keeps unwinding itself and jamming... or just if you have jamming problems that could be alleviated with one of these. Instructions Print one each of the Filament Guide and the Filament Guide Holding Block. Fit the guide over any M8 or 8mm rod/studding on your printer (the rod/stud should lie in the notch cut out for it). Put a Holding Block over the other side to mate and secure with 2 or 4 M4 screws and nylocs. Feed filament through.
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