Qidi i-Mate S filament roll clamp
prusaprinters
The original filament roll clamps on the Qidi i-Mate S (and possibly others) use jsut small M3 screws to tighten them against the roll.So I did quickly my own design in Shapr3D which uses M4 external hexagon screws with a knob and M4 nuts inside the roll clamps.
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