Homebuilt ROVs Forum

Looks like some rational thought has gone into your design. Look forward to seeing your progress. I totally started from scratch all over again because I kept finding better ways to solve problems and because of new HD video advances. I have an 6 1/2 inch OD (16 1/2 cm) diameter schedule 80 PVC hull...

Nice work. 100 m depth? Your english is better than many people here in the U.S. I will have questions later.
My project is for retrieval of objects at 125m (400 feet) with video and robotic arm.

I use an older 72 mgz JR rc transmitter that has a training jack on the back that will control all channels via 2 wires directly to the receiver. I have tested it successfully on a 400 feet telephone cable, but not under water because I am still building the ROV. I am also experimenting with model r...

The other wire is ground. The TX is the older JR xp8103 (actually two of them) to give me 16 separate channels. The 8 channel receivers are in the pressure vessel. New rc radios don't have the direct servo control because they have all gone to the 2.4 mhx frequencies that don't interfere with each o...

Restarting my old ROV project. Learned a lot cruising this forum, some really good ideas and links. Thank you everyone. * Main pressure vessel is schedule 80 PVC, 6 inch diam, 2 feet long. Good for 750 feet deep (228 m). Contains batteries, electronics, ESC's, and cameras. Kept at 1 atmosphere. Sche...

Has anyone done a hydrostatic test on a 6 inch PVC hull sched 40? Now that I got my motor housings built and connected with flex shaft to the four thrusters, I can now focus on the main pressure hull. It will hold the primary batteries, esc's, water leak sensors, and two HD video cameras (stereo). I...

Almost too many options on batteries, including lithium ferric oxide which is much more stable (and expensive). It's what I use on my Quicksilver ultralight aircraft that I fly out of the farm here (for the Rotax engine electric starter). I'm going to put the battery decision on hold for now and foc...

I'm familiar with LiPo's from my drone and FPV projects. They have revolutionized RC flight because of their weight / power ratios. I'm uneasy about them in the ROV because they are so sensitive and touchy. 5000 ma 50c is a lot of current all at once. What would happen if they got shorted out by a w...

True, as the WWII submarine crews were well aware of. I have had twin SLA batteries sealed in their weatherproof control box operating my electric 12 foot farm gate for 5 years w/o any problems. Gel cells are also enclosed in burglar alarm and security camera control cases as power failure backups. ...

Why not put the battery inside the ROV pressure vessel? I'm using two 12v gel cells in my project which can be moved fore or aft for balance. The tether only needs small gauge wires for control signal and video feed.

Lee