I am going to design and build my own ROV. I like the control concept of OpenROV and will likely use that, but I don’t like their mechanical structure at all. I’m thinking more like the shape of Sea Perch, although a bit bigger to accommodate the t100.
For depth control I want to consider a ballast tank Idea, using a servo to pull a piston in and out of a cylinder connected to the sea water. I only want to go down maybe 30ft, 50 absolute max. It seems that a ballast tank ought to be more stable than running a vertical thruster.
Is this forum intended to get into ROV design, or are there better forums for that? any links?