I see. To be honest, this is something I have overlooked! However, it doesn't show in the 3d model I posted but the arm will be able to rotate all the way under the ROV and in to a sort of storage position underneath the WTC (water filter housing) So if I want to lift something, can hopefully balance the extra weight under the vertical thrusts. I would still have problems with the "hand of".
If this doesn't work I will have to think of something else later
Btw, the torch is something like this, but 230v and very rugged type. It's not mine so I don't know the make:
http://img.diytrade.com/cdimg/937176/92 ... _light.jpg
Lost Bob:
The motors are placed at a 40deg angle now. But I plan on having this adjustable. I don't really know what is the most optimal. 45deg would give the most equal thrust in all directions, but as I think it will be moving forwards and backwards more, I believe it is more efficient to have them on a smaller angle that favors forward/back movement.
My thrusters are most efficient when pulling water from the propeller side and out over the motor. That's why I have placed them so that when moving forward, the two in front will pull more then the two in back will push. This way the ROV will be more pulled than pushed, thous helping with keeping it straight. If there is anything to this I don't know
![Smile :)](./images/smilies/icon_e_smile.gif)