Motor Used for Shooting

[PowerfulKitty]

Originally Posted by popnbrown

We're also looking at using a 775pro at a 3:1 but I'm having trouble figuring out how to attach a longer shaft to the VersaPlanetary Gearbox shaft.

While that coupler should work, there is a way you can do it for almost free. Versaplanetary shafts come with a tapped 1/4-20 hole, so you can tap a matching hole in a shaft and secure them together with a short (~1in) piece of all thread. We also put a regular old hex shaft collar over the joint just for good measure, but I can't say whether it's really necessary. It's a pretty straightforward job if you have access to a lathe.

Considering we are making 4 of these joints, that would be $80 for the couplers.

[GeeTwo]

Originally Posted by roystur44

Since the target is a hole in the wall and not a hoop. I think getting your shooter to have a fairly straight trajectory is needed. Let the motor rip and throw a fastball into the hole. It's all about aiming.


Roy

Our target was to have the ball traveling nearly horizontally through the goal, to increase the goal's effective cross section. This isn't feasible with the bumpers over the outer works. We'll probably have two good ranges for shooting, one on the way down (at the outer works, when a defender is active) and one on the way up (near the batter, preferred if no defender present). This trajectory will also give us a rather high launch angle, which should be better to get over defending robots.