[Andy Baker]

Maddie, this is a neat design. Thanks for using the AM Gearbox into this mechanism.

I agree that bolting the sprockets together will work, but that second sprocket is a looong way from the gearbox.

Here is another solution: Make a longer output shaft. That shaft is simply 1/2" steel hex stock (we use 4140, but you don't have to). You would simply need to turn down the hex to fit into the 1/2" id gears and add a keyway in the right spots.

Not only may this be easier than some other solutions, but you can support the far end of the output shaft this way.

Good luck,
Andy