Homebuilt ROVs Forum

The 5000 rpm motor would be the one to use. The amperage it draws will depend on the propeller you put on it.
I would experiment with different props to see which one gives you the most thrust while keeping the draw under 5 amps.

or you could just use bilge pump motors...

if you look at the "draw, thrust, and components" thread you will find several motors that while they CAN draw plenty of amps, also make ample thrust at lower current levels. I just tested a turnigy dst700 with a graupner prop and got 2.5lbs of thrust at 6amps. It would draw more than that...

olegodo wrote:Valid point.
However I emailed Bluerobotics an asked for permission, explaining that I based my design on theirs and they had no problem with it as long as I mention that it was inspired by their design.

Well that is very sporting of them!
Makes me like them even more.

olegodo wrote:Hmm, not quite sure how I feel about that as it is very similar to the Bluerobotics thrusters.

Isn't that a lot like not wanting to share your hamburger recipie because McDonalds sells hamburgers?
Not that you necessarily need to share it anyway, but I wouldn't let any similarity bother me.

looks like your battery was dropping out there at the end.
I saw 9.5v at one point.

I have found that with a 108 degree lens, I don't really need pan, but I really like tilt in a dome for bottom, forward or upward scanning. A reverse camera would be nice too, maybe also in a dome and with tilt too, while we're wishing.

well wireless and submerged don't mix well...
a typical wireless signal has a range in water that can be measured in inches...
just a thought

you should totally post a video of your thruster test.
I would love to see it.
exciting stuff...

I must be a nerd.

BaconBoy wrote: I can already feel my obsessive/compulsive urges tugging hard on my spirit!

Lol... so it's not just me then!


Welcome to the obsession.

Too cool.
1.6kg @ 5amps is pretty darn good.
My jealousy is starting to get the best of me...
Keep the updates coming.