The discussion focuses on calculating the gearbox ratio necessary for a 12-inch wheel to achieve a speed of 2 mph. The correct approach involves determining the wheel's circumference using the formula Pi multiplied by the diameter, resulting in a circumference of approximately 3.14 feet. To achieve 2 mph, the wheel must rotate at approximately 56.02 RPM, which translates to a gearbox output requirement of around 56 RPM. The final formula for calculating the required RPM is derived from converting the speed in mph to revolutions per minute.
PREREQUISITESEngineers, mechanical designers, hobbyists working on robotics or vehicle design, and anyone involved in optimizing gearbox ratios for specific speed requirements.
You're close to the "right path." Just one little adjustment.SevenToFive said:I need to figure out a gearbox ratio to get a 12 inch wheel to travel at 2mph. If I remember right the equation should be 1foot * 3.14*gearbox output rpm*60 then all divided by 5280 to get the final mph. Am I on the right path? Then I need a gearbox output around 58rpm.