paper: Apalrd's Choo-Choo Analysis Spreadsheet

[wireties]

Originally Posted by GeeTwo

I definitely like how the launcher can be held fully cocked with little torque required from the motor; probably little enough to let the gearbox hold it (especially if that last 12:1 reduction is through a worm gear).

We were in an alliance with Winnovation when they used the choo-choo to win the Colorado Regional in 2008. At the 2014 kickoff we were making train sounds as soon as we saw the game! We ended up using a choo-choo cam and made the hub of the sprocket a ratchet then used a pawl to hold it in the firing position thus not stressing the motors.