My OpenROV dives down when going forward and climbs when going backward. Plus it has always been heavy due to metal props, a metal frame, different batteries, ect. I have used ping pong balls and PVC tubes to balance it out.
Eric is always talking about "flying" the ROV, so I decided to add wings (fins). I drew one up in Inventor and then printed two of them over the weekend. They are hollow so they help make my OpenROV neutral in water. I was able to remove the ping pong balls. Each one is 3.49 oz or 98.8 gm.
Now I need a servo that can work in water and I can move them up/down.
I have not had a chance to test it in the lake.1278-finv1drawing.pdf (60.9 KB) 1279-finsprinting.jpg (111 KB) 1280-OpenROV_241_fins.jpg (184 KB)