The crank for older Brio Train Drawbridges were a flimsy design and frequently break. This is a replacement for a broken spool. The central hole has been increased to 5mm in diameter, so you will need a larger screw with a unthreaded top portion, or you can remix it to change the screw hole diameter.

I've included two designs. One with a low-poly style and one closer to the original design. No supports needed.