Squeeze Powered Flywheel Fan

Update 03.07.2025yet another fandesign in the files section wich is still not perfect but I would say approximately double the air movement.Update 01.07.2025In the file section is a new fan rotor with better air moving capabilitiesIndroductionThis is a 3D-printable fan that uses a rack and pinion mechanism. By pushing the rack into the gear, the gear turns and drives the fan. A rubber band return system allows the rack to slide back freely without stopping or slowing the fan. This enables repeated squeezing to gradually increase the fan’s speed. The fan continues to spin regardless of when the rack is stopped or reversed.The Fan attaches through a thread on the axle this allowes to easily switch or remove the Fan from the handle. if you want to get creative with the fans blades I leave a step file with the bare fan hub in the files section to remix.This is a gif of the working principle:The big gear immediatly disenganges the small gear as soon as there is no more torque on it.Printing