For our cap flipper, the shaft always bends downwards because of the weight of the cap. We have tried other things to stop this like screwing the passive intake to a gear, but then the gear also slops downwards. Is there any other way to fix this without using a high strength shaft?
I wish
I’d recommend using a screw instead of an axle (still through the center of the gear). You’d either have to use a high strength gear with circular centers or drill out a hole in your current one. We did it and it worked really well (if a 2 inch screw fits).
We have tried that out, but to get it to work the way we wanted, we had to tighten the screw to a point where the gear wouldn’t spin well
Use a vex turntable
You mentioned that you mounted it directly to a gear, so you might be able to do that and use a screw (and possibly angle the entire mechanism up). That way you could keep the screw a little bit looser
That is what we are currently doing. We are trying to look for a more permanent solution
Hmmmm the only thing I think that may work would be putting a gear on the outside and screw it into the rotating part (unless I just misread something).
c-channel coupler: 
mhm. May work. Anyway, thanks for the help.
Have you tried using high strength axels?
We currently don’t have any, and won’t be able to get them for a while. That’s why we are trying to find a solution that doesn’t require HS axles
Ours works fine and we have three lockbars holding the fork intake to the shaft.