We have been testing a dual wheeled shooter this past week. It was a vertical dual wheeled, meaning we have a bottom and top wheel. There was around 1.5 inches of compression on the ball, and was shot at around a 30-45 degree (I think)
It was powered by 2 775s with versaplanetary geared 1:2. One on each shaft for top and bottom wheel. We shot around 30 feet to the ground, and around 20-25 feet in the range of hitting the 2 point goal. We wanna be able to hit the goal at 35+ feet. (Tough goal) I’m wondering what changes we can make to hit this goal, will changing the gear ratio help? Lowering it to 1:1.5 or 1:2? Or does there need to be a different change happen to reach that distance. It’s currently on 4" colsons and we are going to try a 6" colson next meeting
You will find it hard keep the ball in the goal from your target distance with 6" wheels and that gear ratio with 2" compression is my guess. based on our testing.
So would you recommend varying the top wheel slightly for more backspin? So when it hits the goal it would pretty much die out and fall down the 2pt goal? Or would more compression solve this? We can vary the speeds through code so it actually lands in 2pt or goes straight through to 3pt
The 6inch wheel would provide a 50% increase in exit velocity theoretically. Which yes may result in jt hitting the target wayy to hard. So we would probably tune it down slightly
We have something very similar to what you currently have, but with a few small differences allowing us to shoot 36 ft to the inner port reliably.
2x 775s (geared 1:2.18)
4x60A 4" andymark compliant wheels (Previously 4x2 colsons)
~2.5" of compression
6.1-6.2k RPMs
Hope this helps a bit!!!
It seems to me you might find success in using more wheels “in series” with your current set, if that’s possible. Should reduce the overall slippage of the ball and help you throw it farther with a higher RPM.