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Filament tensioner knob

Replace the M4 machine crew on your greg wade extruder for tensioning the filament with a M4 bolt and this simple knob and never use a screw driver again! Gone are the days of fumbling for a screw driver every time you change filament! Innovation through laziness!

(I have yet to go and buy M4 bolts so i have nuts screwed up untill right under the head for now as seen in the picture)

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