You can use your own vent design to work with this code too , just need to turn the servo timmings to your vent style or just use the provided one Use any grease of your choice on the gear and ...

All switches are connected at one end to a pull-up input, and connect to ground on close. The analog input for the food pedal expects a potentiometer (e.g. 10k). Note that the MIDI output is used.

They'll also be better suited to your needs - win, win ...