A parametric 3D-printable butterfly wing knob for fast finger-tightening on clamps, quick-release bolts, tripod collars, and portable rigs. Customize wing span, height, boss diameter, through-hole size, wing profile (straight / curved / tapered), captive hex nut (M4 / M5 / M6 / M8), and grip ridges.
Prints flat in FDM with 0.2 mm clearance.
Part of the 3D Printable Parametric Hardware collection on GrandpaCAD.
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