I just watched your youtube video: https://www.youtube.com/watch?v=Dzom2msSrBw
That’s a tough one. Something about the pistons being off-axis seems really wrong to me. Like, would the mechanics still work if they weren’t aligned?
Would it work to shift the top connection (closer to the engine) towards the inside so that it would line up again?
It seems like these parts need to be parallel for the same reason the tires need to be parallel. If they are bowed toward each other, rotating them would cause the arms to move closer or further apart, rather then staying the same distance. Right?