A quick & dirty device to get a reading on how much force it takes to pull filament through the Prusa MMU2. It is not linear, but will allow you to compare the drag in a quantitative manner. Take a reading using the pointer and the "teeth"
Shown with a 16 ounce weight suspended. You will need a wire/string to attach the alligator clip/clamp to grab onto the filament.
You could also use it to find out how much "pull" your Bondtech gears have before slipping.
3 perimeters 6 top/bottom