First try at making a fully 3d printed propeller for my kayak with the help of https://www.wageningen-b-series-propeller.com/

No support ofc ;-)
Hold together with zip ties

The end-goal is a drill powered 3d printed trolling motor for my Intex chalenger kayak.

Updates:

1. First test: https://www.youtube.com/shorts/u2azdVlaOBA
   First gear - second gear - propeller slipping on shaft