Hi!
Back from holidays now and getting ready to finish my thruster testing this weekend. A few more blade designs and in a bigger tank so I can max them out without drawing in air.
I will try to make a short youtube clip of it while I'm at it.
In other news, I think I have my tether figured out.
100m (330ft) of 2 lead 24awg wire twisted in to 100m of 6mm floating line. This is normal 3 braided rope and is much easier to come by then the hollow, diamond braided type.
Tested 1m of this in my kitchen sink and it is slightly buoyant actually. Using a thicker wire or thinner rope would maybe be better, but 6mm rope was the smallest they had at the shop I visited. And I guess adding weight to it is easier than adding buoyancy
The rope with the wire is very flexible also. Still not optimal as a rope in water will create more drag than a "slick" cable.
I have an idea for a tool that I can print that will help med thread/braid the wire in to the rope. Will give this a try next week maybe.
Any ideas or comments on this thought?