Added a strain cable strain relief to replace qtpy mount, for pedals used as simple potentiometer pedals.
The sliding linkage on the potentiometer causes non-linear output, since it slides more at the beginning of travel than at the end.
I replaced this with a double linkage instead to make output more linear.
Credit to Ken Cooper on thingiverse for linkage pin idea. Here's his customizable link pivot pin
The author remixed this model.