Custom gearbox

Initially, we were using the Rev Core Hex robot in our prototype. The Rev Core Hex motor ran at 125 rpm and weighed 200 grams. However, eventually, we realised that this motor was functioning at a really slow speed. Even though this motor had good torque it was heavy, and it had a very low rpm. Therefore, we weren't able to perform the task efficiently with this motor. So, we tried to change the motor by using the N20 motor which ran at 200 rpm and weighed 10 grams. This motor was light and had a high speed, but didn't have enough torque, so it wasn't a viable option either. Therefore, we finally decided to use the Bag motor which weighed 325 grams. For that, we needed to make a custom gearbox, which has a 4:15 reduction (16:60). The pinion on the motor runs at a 13,180 rpm which is powered by a Bag motor. This Bag motor is a VEX motor a 13,180 rpm motor with 0.4 N-m stall torque. The 60-toothed gear connected to the output shaft by reduction gives a motor speed of 3,514 rpm. The reason that we have chosen to make the custom gearbox is that we want to use a better motor.