Yes, actually this is the biggest problem, as you say it requires professional tools to build a perfectly fitting tube and tube holes. Even If the holes become a bit larger than the tubes, it still creates too much problem.
I don't know it would not have to be a grease oil, it could be a pump...
Hey, whatsup. I ve tried to build somethings but I could not do it properly. It needs some professional touches, like as 3D printers to produce some parts etc.
As you said before, I think some water holes are needed in the inner tube to benefit from upthrust power of the water in the main tube.
Hey,
I tried to build something similar and seemed like it works, the problem is to mount waterproof sheet, I used a plastic bag but I could not stick it properly around the red tube. It needs a professional touch.
Yes, the red tube will be soo lightweigted when compared to the lifting potential of the air it keeps in. Yes the cloth will have enough slack to allow the tube to rise.
Hey, I am from Turkiye, 17 yo and studying at high school. I have a project and would be better to know whether or not my project will work. I tried to draw it simply on paint and will tell you about some important points of it.
Image 1 is the main body, its something solid and waterproof. It...