I would like to introduce to you the 5th version of my wind-up boat.
After the 4th version i got a lot of feedack on Facebook, which I have implemented as well as possible.
As you can see there is a much larger wind-up weel. The boat can now be wind up easily even with wet hands. The button has also become a little bit thicker to offers more grip.
The sharp edges on all components were rounded. I also set the screws in a way that the heads are up. No more sharp threads on the top.
Next, I've added a rigid rudder, which means the boat is no longer drifting to the right side any more. That works quite well. - better than expected.
The biggest changes were in the transmission. All the gears were redesigned. For the direction change in the back i used a spiral bevel gear, which produces ridiculously little friction. It is designed in a way, that the axial force goes to the rear and the friction occurring is almost neutralized by the back pressure of the propeller. This works absolutely fantastic in the water! The…