Homebuilt ROVs Forum

Hello! My forum name is MagicHat and I'm from Norway. :D I have always been interested in how mechanic and electronic stuff work, and have unneccesarily torn apart a lot of stuff during my younger years to get to understand how they work. :P I am now 18 years old and have finished my studies as an e...

Thank you very much Seadragon! Well, if they use it in the navy I think it's good enough for me :P Now I live in Norway, so where do you think I would be most likely to find some Marcol 82 oil? At the gas station or a drug store, perhaps? Will a normal contact cleaner do the same work as the one you...

AC-power I still mean the best solution is to run AC down to the ROV. Magic-I have the equipment for AC - DC but I dont wont to run hight voltage in the ocean. I wont' call 120/ 230V AC high voltage. According to the IEC (International Electrotechnical Commission) high voltage is voltages over 1000...

Hey, it's not a manufacture mistake, you made the mistake not to read the necessary documentation before you bought it! Anyways. How many Volts do you get at the ROV end if you run 24 Volts from the surface? Are you running digital or analogue data on the tether (i.e. for camera)? In general I don't...

Here is an example of what you need: http://cgi.ebay.com/DC-24V-12V-20A-240W-Step-down-DC-DC-Converter-/200622155867?pt=LH_DefaultDomain_0&hash=item2eb603285b#ht_3166wt_1206 (DC 24V to 12V 20A 240W Step-down DC to DC Converter) How long is the power cable? If you have very long cables on low vol...

Hello! You need to regulate your voltage down from 24V to somewhere between 12-16V. You can buy these regulators, or you can build them yourself. You need to know how many amperes you need. You can not run the ROV-Asia on 24V, because the over voltage protection will then disconnect the power to pro...

Nice, ScubaGEEB, nice.. I think using oil could improve the "waterproofness" of any ROV. A possible problem is that the camera vision will become blury, and therefore I am looking for a very clear oil. Coconut oil is very clear, but has anyone got any better alternatives? If I am for insta...

I want to be able to run my ROV in both salt and fresh water. And I think I've got a brilliant idea, folks! :idea: I got this idea after seeing all the problems people had getting their engines waterproof - even bilge pumps got into problems when they started to hit some depths. The seals that makes...

The best way of controlling the engines with an Arduino would be to use PWM (Pulse Width Modulation) on its digital outputs. The output of the microcontroller is not very powerful, so you must then be used to drive an H-bridge. The H-bridge (which can tackle larger currents) will then finally drive ...

I am not going to hijack his thread completely. Instead I will go on and create a new thread for my project when I have done a little more planning ;) I have talked to a guy who works a lot with USB extenders, and he said that allthough very likely, it might not work to put a USB hub at the receiver...