[PSUBS-MAILIST] Gear for manipulator

[Alan via Personal_Submersibles]

Hi,
haven't had any Psub mail for a while.
Am looking for a small gearbox similar to the one below with the double output,
but with reduction gearing, to be used for rotating the joints in a manipulator. 
Preferably of non corrosive materials.
I fear I may have to make it!
I have purchased a couple of motors from BLUE ROBOTICS. The M100 (135W) & M200 
(350W)
http://docs.bluerobotics.com/thrusters/motors/
These are designed to operate underwater without a housing, you just need to pot the wires. I have other plans for their use.
So the idea here is to design a relatively cheap manipulator that avoids the hassle of building waterproof housings & compensation systems. My main intended function is 
to be able to reach to my thrusters & cut rope in an entanglement. 
It won't be as robust as a manipulator made using pistons but will have more range of
movement & be easier to detach at depth if needed.
Alan



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