[bardd]

Originally Posted by Akash Rastogi

I would suggest that you identify a gear ratio based around a realistic problem and then create your gearbox based around gears which are commercially available from WCP, VEX, or AM (or something like SDP/SI). Making a "random" gearbox is not clear to me what you are trying to do, but if you create a ratio and gearbox based around calculations for a problem such as the elevator problem in this or any other problem you create on your own, you'll have a much better understanding of the design you are creating.

The basic criteria you need for the elevator are: 1) load on the mechanism (in this case, the weight of the elevator), 2) The height the elevator has to reach 3) The diameter of the winch/pulley drum 4) In how many seconds do you want your elevator to reach your max height. Once you set those criteria, follow the equations in the link I gave.

Just my +0.02

I've been thinking of a human-carrying cart for quite some time. I didn't intend on using a custom gearbox, but I think I'll take the opportunity and design this gearbox for the cart. Thanks.