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A knob for gripping and turning

Designed a knob, a functional knob for gripping and turning, gripping and turning...

Description

There are two variations of the same design. Both knobs provide excellent tactile feedback and a high friction surface by increasing the number of contact points between the finger and the knob, which resists slipping during rotation.

The first knob is a straight cylinder with vertical flutes that meet at the bottom knob edge.

The base flare on the second knob provides a more secure stop or tactile anchor for the user's fingers, making it easier to maintain grip and apply torque.

The photos show the two 3D printed knobs in PETG with 20% infill, no supports, and  0.1mm layer height.

That's it.

Notes:

• The knobs were done in OpenSCAD. Source files are included! Happy hacking!

• You can also find the model for the knob hole extracted from the original sample given by Hercules DJ Contest statement.