The idea has been rattling around my brain for a while now, I don’t imagine these will last very long due to fatigue but it’s a fun experiment. Aluminum barrel directly on rough pavement and its a smoother ride that the rough stuff wheels on the back of the board.
I machined the wheel centers out of some scrap HDPE I had laying around the shop. I imagined the final product being wire EDM cut out of high-carbon steel, but at 5K cycles/mile I think it might be pushing the material limits, even for high-cycle springs.
One can only dream, right!?