Finger Engine Treadle Fan

thingiverse

I've always been intrigued by the intricate mechanisms of antique sewing machines, particularly their foot-powered treadles. Recently, I came across examples of finger engines crafted by skilled machinists in the past and decided to attempt creating one myself. My primary goal was to design a functional fan that could generate a gentle breeze. Although my prototype doesn't rotate at a sufficient speed to produce noticeable airflow, it still makes for an entertaining desktop novelty! To build this project, you'll need to print the lever.stl model, which requires supports during the printing process. You'll also require some 5-6mm rods and a suitable adhesive, such as gorilla glue. I personally prefer gorilla glue due to its ability to expand, resulting in a secure and snug fit.