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Hexagon knob with heat-set insert M3 - clamping knob, 4 sizes 16/20/25/30 mm, no supports

Hexagon knob with heat-set insert M3 - clamping knob, 4 sizes 16/20/25/30 mm, no supports

AMPERELAB3D · Cults3D

$1,11CULTS PU - Private Use

Six flats instead of eight. Reads as a tool size and looks right next to anything held by hex screws. Bored 4 mm for a standard brass heat-set insert M3. Melt it in with a soldering iron at about 220 C and let it cool under light pressure. A printed M3 thread strips after a handful of turns; brass does not. ## Sizes in the download All 4 diameters, same shaft fitting: | Diameter | Height | Volume | Weight in PETG | |---|---|---|---| | 16 mm | 9.6 mm | 1.3 cm³ | 1.7 g | | 20 mm | 11.2 mm | 2.0 c…

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