Hi, I'm working on a school project designing a gearbox with the following setup: -200 rpm motor with 0.45 N/m torque -5kg weight that is hung from one of 5 pulleys, we get to choose which. They are 20, 30, 40, 50, 60 mm diameter. -The design will be 3D printed out of ABS -The fastest time to lift the weight wins. I've done calculations for each pulley, requiring a GB with ratios of: 1.09, 1.635, 2.18, 2.725 , 3.27 As far as I can tell, they will all lift the weight at the same speed, unless you factor in GB losses. (Friction etc...) So: Do I go high speed (with smallest pulley), high torque (biggest pulley), or somewhere in between?