I tried stepping on the underside of the pedal to test what would happen, and the junction connecting where the wall for the reflector slot to the main flat "plate" cracked, because of bending stress. So I revised the design to add curves to the "plate", and reinforced the junction with the walls. So the crack should not happen there again. But FDM ABS is still brittle, so I expect the wall where the bolt passes through to eventually crack under stress. I think it will definitely have to be printed in nylon on a SLS machine for the part to be durable.
