i would put a pice of c channel over top of the flywheel to support that axle on both sides. i would also use a VW indecer for pneumatic or swapping to a motorized indexer in order to decrease cycle time.
You probably don’t need to have a ratio as large as 7:1, especially since it looks like you’re using a 4-inch traction wheel. You’ll be better off with a 5:1 ratio on a 600 rpm cartridge. Most teams I’ve asked have stated that even at 5:1 their flywheels shoot over the entire field at max speed.
I would consider whether or not you want to use pneumatics anywhere else on your robot. Pneumatics are limited in uses, but having only one piston on your robot would let you use two tanks for it, which is more than enough air to last the entire match.
After all, this is the most repetitive motion in the game this year, so having something that can be used many times in a row is essential.
At most a flywheel should be 3000 with a 4 inch diameter wheel. We run ours at like 2200 most of the time, so we considered switching to a 48 to 12 gear ratio. You could also look at 1:1 cartriges, and should consider using a flexwheel on your flywheel for more grip. Our team has found the 45A works the best.
I would pursue a ratchet “puncher” type indexer if I were you. It has worked rly well for our team. (DM me if u need ideas)
And, the only reason it was done in FTC is that teams only had to worry about relative disc acuraccy. As they only had to shoot the game elements into a hole in a wall from a defined place (firing line-closest legal shooting place to the goal) (and not into a goal where they need to stay there for the rest of the match), certain design choices could be made that don’t necessarily translate well into this season’s VRC game. And even still, with other games involving shot discs, these choices were not as prevalent as one might think.