Volvo 850 ECC knob

Modified to fit Electronic Climate Control on a 1996 Volvo 850. Should fit other years, maybe other cars.

I modified the D-hole for the shaft, and removed the detents around the edge. On my car, this fits snugly - it takes some effort to install or remove. You may need to tweak the shaft dimensions slightly, depending on your car and your printer.

The code for the D-shaped shaft hole was lifted from a very slightly modified version of Customizable Knob! by charliearmorycom - https://www.thingiverse.com/thing:54024