Accessible Position Indicator with 3D Pointer
Designed to clamp on cylindrical knobs.
Eliminates parallax - put your washing machine in the right mode the first time, every time.
Also great to make cylindrical mode selection knobs accessible to blind people, as the pointer position can easily be determined by touch.
Designed for Koenic washing machine with 20 mm knob. FreeCAD source file provided to allow adaption to other diameters.
Requires M3 x 20 mm screw and hex nut. Installs over existing knob.