Almost Fully 3D Printed Anemometer

A simple, easy-to-assemble 3D-printed anemometer. All you need is a 12mm steel ball (a plastic ball may work, but it hasn’t been tested) and an 8cm piece of filament.Assembly Instructions:Step 1:Insert the arms into the hub, then cut small pieces of filament and push them into the holes to lock the arms in place.Step 2:Secure the mount where you want to place the anemometer.Step 3:Place the ball into the hub, then fit the hub (with the ball inside) onto the mount.Step 4:Insert a piece of filamen