Airbus A320 Transponder Selector Knob

Dimensionally accurate two-part design that can be printed and used without any painting or post processing.

Main switch body printed in matte grey PLA, though can be printed in any colour and painted

Marker line printed in white PLA or PETG. Line is press fit, but can be glued if required.

All at 0.15 layer height, 100% infill. Marker lines print smoothest with 10 or more perimeters

Hole diameter is 4.0mm for switch shaft. Threaded hole is for M2 4mm grub screw to secure shaft 

Can be used with Transponder Rotary Switch mount and shaft extender:

Airbus A320 Transponder Panel by MANTOGA | Download free STL model | Printables.com