underwater sparkler

Is this real?CLICK HEREfor some reason i cant add the video if anyone wants to try, calcium chloride is basically water hardener

Posted by budsiskos 10 years ago  |  last reply 10 years ago


Underwater Explosions

Let me start this question/thread by saying I live in the middle of the boondocks and have no worries of any legal repercussions for my actions. Regardless, I am lazy, and am looking for an easy way to make an underwater explosive for fishing purposes. If anyone could tell me how, it would be well appreciated. I just want to blow the fish out the water, then row around in my boat, and pick them up.

Posted by Incineration_Prophecy 11 years ago  |  last reply 10 years ago


Underwater Photography on the cheap

I'm trying to 3D print reliable underwater camera enclosures. Here's where I'm documenting my progress: https://www.instructables.com/id/3D-Printed-Underwater-Camera/ What do you guys think? (first post ever :D )

Posted by MoonLanding 4 years ago


underwater silicon cover

Hi everyone, I see outex.com and i'd like to make it by myself, I think it's not so difficult but I need some expertise I don't have that you can give it to me...^_^ i'd like to start from this bag,  https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTZ2lk6Fr2qj8sAc_D6bZkRBepK17dzmUvUBjOJBTeNbH8P8Fp1RA cut it and mold some pieces to fit the Camera size and shape, do you know how to make waterproof seams on this material? hot,glue or what to make it impermeable? hope you can help me and make my next holydays great with underwater shoots!

Posted by cavalars 5 years ago


U can talk underwater!

You heard it right,bro.Here is how I did it in ascii art: | Pool SurfaceV~ o Me --> XD

Posted by Derin 10 years ago  |  last reply 10 years ago


Running DC motor underwater? Answered

I have heard that DC motors can run underwater and am trying to build a project with them running underwater. I recently tried running a brush less DC cooling fan underwater and it broke. Meanwhile I tried another mini DC motor, the kind that cost $.99 each and it worked fine. Does anyone have any ideas why one worked and the other did not? Does it have to do with being brushed or not? Lastly would something like http://www.pololu.com/catalog/product/1117 theoretically run underwater? Thanks.

Asked by Hammock Boy 6 years ago  |  last reply 2 years ago


Will a 49MHz transmission work underwater? Answered

I'm building a small device that needs to go to a depth of only a few feet in swimming pool water (I'd say three feet at the most) working on an arduino. I wanted to make it radio controlled and was planning on using a standard 49Mhz RC car circuit connected to the arduino. I don't want to keep the antenna above the water line and was wondering if a 49 MHz would work underwater. Any help would be appreciated. :) I know higher frequencies like those in Bluetooth don't work underwater.

Asked by sidgupta 3 years ago  |  last reply 2 years ago


Will a 49MHz transmission work underwater?

I'm building a small device that needs to go to a depth of only a few feet in swimming pool water (I'd say three feet at the most) working on an arduino. I wanted to make it radio controlled and was planning on using a standard 49Mhz RC car circuit connected to the arduino. I don't want to keep the antenna above the water line and was wondering if a 49 MHz would work underwater.  I know higher frequencies like those in Bluetooth don't work underwater.Preview Topic

Posted by sidgupta 3 years ago  |  last reply 3 years ago


Underwater MP3 player housing

I need a way to take my MP3 player underwater. will be going deep in the 250 foot range. I will need to be able to turn it on and off underwater as the battery will not last through out the entire dive. any one have any ideas about how to start something like this?

Posted by shaines 12 years ago  |  last reply 12 years ago


Best Motors for underwater thrusters?

I plan to do a Arduino based ROV for that i need thrusters i searched for thrusters but can't find for cheap, So plan to do thrusters please suggest me best motors for thrusters?

Asked by athuv 3 years ago  |  last reply 3 years ago


How could I make a robotic claw that I could put on my rov?

Asked by scubachase2000 8 years ago  |  last reply 8 years ago


how can i build an underwater robot????

Asked by nagapooja 6 years ago  |  last reply 6 years ago


How to light up an LED underwater?

Our problem is how to make an LED light up underwater (We planned to place an LED in a jar full with water as a part of our science experiment. And also, we'd like to add an on and off button for it.) Is it possible? 

Asked by zarinazats 6 years ago  |  last reply 6 years ago


gyroscopic underwater camera stabalisation

Hi does anyone know if it possible to create a stabilisation platform to make a video camera point directly down all the time underwater. the ultimate goal is to attach one to the front of a Diver Propulsion Vehicle to map small sections of the sea floor. at the moment we planning to just have a guy being towed on a rope behind the main diver keeping the camera down Thanks for any advise Tom

Posted by tawcnysc 9 years ago  |  last reply 9 years ago


torch underwater

Who has a idea for a torch underwater?? I search a solution for a cheap solution I have a good lamp very strong, that i want convert a underwater. Who help me? The lamp is very big, and the handle is anatomic, same a pistol grip, with a big oblo about 15cm, the lamp is rechargeable. Can I use the silicone, for the oblo closing? If a day i must change a lamp (struck), i can use a knife and after the change a new layer of silicone. Is a good idea? Who Can support for better solution? Thanks e sorry for the language (i am italian and don't speak well )

Posted by rikk_58 8 years ago  |  last reply 8 years ago


Help (advice) with building a Nautilus

I believe that nature in itself has the solution for all our problems . I believe that a combination of mechanical engineering and marine biology (marine comparative bio-mechanics) can provide a new scope of development . I have always been fascinated and intrigued by marine animals which have survived billions of years and great changes of the Earth . ( eg . nautilus)  [http://en.wikipedia.org/wiki/Nautilus ] . Its my understanding that this cephalopod has the most effective and energy conversant method of locomotion. It uses water jet propulsion for motion and uses the air cavities inside its shell for buoyancy  . These mechanisms of locomotion can be studied and modified for creation of low-speed , high-efficiency underwater locomotives . The Nautilus v.1 is a fusion of both biomechanics and state of the art electronics. It uses the habitual and operational features of the living fossil nautilus. The living nautilus is the sole inspiration reason for this underwater utility simply because of its magnificence. It has survived for millions of years in the open oceans which is a remarkable feat in itself but surprisingly it makes a daily trip of 150-200m from the ocean bottom to the surface nocturnally for feeding. Even though Nautilus v.1 uses many of the systems used by underwater rovs , it stands a class apart by achieving partial autonomy . The Nautilus v.1 is far superior from its rivals such as openrov, sea perch, etc. because of its low power consumption and longevity. It attains this by excluding power consuming components like propellers. Its operation is completely on the basis of neutral buoyancy attained by productions of gas bubbles by simple water electrolysis. The gas bubbles are collected in different gas chambers for operation at different water levels. The salinity of sea water facilitates water electrolysis and more gas can be produced with less currents. Graphite electrodes are used to prevent electrode corrosion. The electronics part is still under discussions for an optimum control unit. This will act as the base for addition of sensors and locomotive systems. Currently the main two platforms under work are the beaglebone black and the android versions. Both have their own advantages and disadvantages. Beaglebone would be optimum for component level additions, such as sensors can be added on, whereas in the case of an android system such as a smartphone, most of the sensors are inbuilt and their raw data can be attained. For progress till now, please visit http://opennautilus.wordpress.com/

Posted by cecilj 4 years ago


I have a question about My ROV control system.

I am building an ROV and I need to know whether this control board will work. I planed on Running 1 Cat5 and 1 set of speaker wires to control and run systems on-board. When I flip a switch on the control panel, a 3v signal is sent down the Cat5 wire to the base of a transistor, which opens the flow of power between the Emitter and collector. My main question is, does a transistor work as a switch? Example. A signal enters the Base and opens the other two connections. Is this right? Oh, and the other two pictures are what i plan for it to look like. I am building it using the motors from one project (posted recently) , the frame another, and my own control. I will post an instructable as soon as it is done.

Posted by ry25920 10 years ago  |  last reply 6 years ago


How to make an underwater snook light?

Hey guys, I was wondering if anybody knows how to make an underwater snook light & I think it'd be cool to make an inscrutable on it. THANKS (:

Posted by co'loughlin 7 years ago


Underwater ROV Arduino assistence please. Answered

I am participating ( with other students ) in a highschool level underwater rov competition, i would LIKE to use arduino to control the robot. BUT ive never done something like this before what id like to know is besides the Arduino board ( not sure if Uno would work or if Mega would be necessary ) what kind of compnents would be necassary  Like would the arduino be controlling the motors directly or would it control something to turn on/off the motors? as the motors run on higher voltages then the arduino does and what would the control side of it be like? i would LIKE to have a basic joystick  (2 axis, nothing fancy) and a few buttons but would that require a specific shield or something more complex?

Asked by shabaki 6 years ago  |  last reply 6 years ago


DIY Scuba Tank (breath underwater)

I need some advice. I have a great idea that would be amazing if it worked. I want a small scuba/air tank whatever you want to call it (like a scuba secondary tank or a paintball co2 tank) that i can use to mess around with in a pool. I dont want to be constantly breathing, just enough to take a deep breath, go underwater and hold it for a minute, release air from the tank-take a breath, hold it, take another breath from the tank, hold it, and so on. Just enough to get a few breaths and be under water to last me for 5 or 10 minutes. The only thing is i dont want to have to fill it at a dive shop or from a tank that has to be filled at a dive shop like scuba secondary tanks. i want to rig it to fit a bike pump (which probably will not have enough psi to get the amount of air i want) or my air compressor. So i would like advice and also would i need an air regulator since im not constantly breathing? what could i use as a regulator if i need one at all? 

Posted by wdemarche 4 years ago  |  last reply 2 months ago


is it possible? Breathing underwater without a tank...

Hi all, Could it be possible to make a device that lets you breath underwater like the fishes do? Think about something in the lines of a wearable filter off some sort that scrubs Oxigen from water molecules... So, if that would be possible, how would one make such a device??? Just wondering.

Posted by AriedeB 6 years ago  |  last reply 6 years ago


Mini underwater robot (casing ideas?)

This idea is in the preliminary stage at the moment, I have a good level of understanding of all idea's implementation but I need some help with the casing (and battery). Without giving too much away (wouldn’t want to spoil the instructable surprise now, would we?!); basically it’s an underwater BEAM bot, it’s mainly static but it has some "flailing" arms that can move around in an interesting fashion. Said arms can wiggle in two dimensions (above and below the plane at which they are detached - think elbow that can bend back and forwards) and are composed of a levered magnet/coil combo. The entire thing will probably have three arms, all on the same plane. I also need a small rechargeable/replaceable power supply, emphasis on small (the project needs to be somewhere near neutrally buoyant), and some way of recharging/replacing it. Any ideas would be most welcome. Now, since I’m using electronics underwater I want to make sure water cannot get in; problem is I don’t know how. I have had some ideas about some sort of thin sealed plastic, i.e. two pieces of plastic cut to shape and sealed around the edges, but then charging becomes an issue. Plastic would otherwise be ideal. Please keep in mind that I’m a student and cannot afford anything more expensive than a good lunch. Finally, would this make good instructable material? I’m hoping to have a design no more complex than a basic beam bot, as it is at the moment the part count is very low... Thanks

Posted by andy 11 years ago  |  last reply 11 years ago


Underwater Jetpack Project. [HELP NEEDED]

Im planning on making an underwater jetpack something like this. However I'm a bit to dumb to figure out all the ESC and electronic components of brush-less motor systems.   Im also limited because this is a school project and in order to be reimbursed the materials need to come from amazon.  I will be using it in a chlorinated pool for demonstration but salt water resistance would be nice.  My requirements are as follows:  1.  Propeller must be covered as I may do another project after this one that requires fingers (im thinking 6in diameter pvc pipe with chicken wire or a metal grill over the ends) 2. Modifiable for different circumstances.  (I already cut up an old backpack and screwed a plywood board to it for mounting the propellers and  batteries, however I may decide to go with hand or foot mounting instead.   3. A trigger operable switch. (Cordless drill style although I don't care that much about speed control.   I'm planning this project to be for a senior year high school project (next year) so I have plenty of time. Do you guys think something like this would work for the propellers?  Their for air so I would expect significantly reduced performance in water.  However if they are to high rpm/low torque to spin properly in water perhaps I could keep the enclosure and switch out the motors for higher torque ones.

Posted by TypeNameHere 1 year ago


How to make an underwater/rippling light effect?

I need some help! I am trying to make a light that appears to be shining through moving water. If you google "Chauvet Abyss lighting" that is the sort of effect I want, but it will be in a bathroom so on a much smaller scale.  I can't figure out how to do this. I tried shining light of an aluminum pan of water to get a reflection but it was too dim and I couldn't keep the water moving unless I stood there moving it. Some of the problems with this are it needs to be fairly bright, needs to be preferably something that doesn't need to be plugged in, and can't be expensive. I thought of shining a light through an aquarium but I am not sure how to keep the water moving in a way that it would give the right appearance. I also thought of having the light moving instead and either still water or have the light shine through some type of translucent surface that is made to look like water. However I am not sure how to make a light that moves (slowly) or how to make a surface for it to shine through.

Posted by ReddWolf 8 years ago  |  last reply 8 years ago


What would a basic arduino controlling system for an underwater ROV be like?

I am working on an underwater ROV for a competition and have been considering using Arduino to control it. However. I have not actually ever used Arduino and therefore have no knowledge of the subject. So my question is this, what would the basic components be for controlling the ROV be? It would have to be able to control several (4-ish) medium sized motors as well as 2-3 small motors and i would LIKE to have either a joystick and a few buttons on the controlling side. I can imagine ALL the power would be unable to be run through the Arduino system so would it be that there would be some kind of second component for say each motor to control power flow? Also the motors are "double throw switch" motors so there would not need to be any kind or" throttle "

Asked by shabaki 6 years ago



Will water block a cell phone signal? i.e. Can I make cell calls in a homemade submarine? Answered

I'm thinking about putting together a homemade submarine of sorts. the cabin will be a blue plastic barrel, and contact to the surface would be nice. How deep should I be able to go before I lose service? Please no comments on how dangerous this could end up being. I'm well aware :)

Asked by jrh065 8 years ago  |  last reply 8 years ago


Small Scale Scuba Gear within $100?

I had an idea for a good instructable. I'm trying to plan out on paper a neat breathing apparatus for a hundred dollars. Constraints are that it has to fit on the face, can be carried anywhere, and should at least provide one minute of oxygen. As a plus, why not add a pump so you can replenish the air supply when its running low. The way i might build this, ultimately, shouldn't be too hard. But what is being difficult is what to use to hold the air supply. would an air tank from an airsoft gun be any good? or would i have to use something different to contain the pressure? Any input would be greatly appreciated! -Jakit

Posted by EngineerJakit 7 years ago  |  last reply 7 years ago


can a regular 9mm pistol fire underwater ? Answered

The title is the guestion

Asked by Goomanhimer 9 years ago  |  last reply 9 years ago


Relay control board for ROV

     I'm working on a control system for my ROV and I'm not sure what to do. I plan on having 2 wires for power then a cat-5 cable for control of relays/ video. Does anyone have any ideas, schematics, or plans for a relay based control system... Inputs to controls: - 12v boat battery - 5 pairs of 22 AWG solid wire ROV side hardware: - 3  500GPH attwood bilge pumps modified with 60mm model boat propellers - 1 A/V camera - 2 3 LED lights (9v per 3)   If anyone needs any extra information... The ROV is based off of the SeaFox ROV from www.amazon.com/Build-Underwater-Robot-Other-Projects/dp/0968161006.  Please realize that it uses a near similar frame but different motors. Thanks to all who help. Citing and stuff: - ROV picture - homebuiltrovs.com

Posted by ry25920 9 years ago  |  last reply 9 years ago


Underwater, Ambient, Aquarium Lighting

I am building a DIY foam/crete background for my cichlid tank and would like to run LEDs underwater as ambient lighting under ledges etc. I want to run lines with single lights placed strategically in the background. Any thoughts on how I might approach this inexpensively?

Asked by mretuck 7 years ago  |  last reply 4 years ago


How to create underwater fish tank LEDs? Answered

Ever seen those glass pebbles that are somewhat opaque? I would like to place these at the bottom of a 15 gallon fish tank and have it lit up from underneath, probably through the use of LEDs. I am looking for any ideas of creating such a thing that would be safe to place under water, that won't fry the goldfish. Food for thought, could you also use Black light LEDs or would that possibly kill the good bacteria in the tank. There could be a possibility to place it under the fish tank (outside the water), though I would have to remove a structural panel. Would creating an LED mat for underneath the fishtank be easier? Specifications: -Powered from a wall socket -light up and through 1.5" - 2" of the glass pebbles for 1' x 2' aquarium bottom.

Asked by jc.021286 8 years ago  |  last reply 8 years ago


How to make rechargeable underwater fishing light (LED - Li-ion battery)?

Hi, I want to make an underwater fishing light with LED chips and Li-ion batteries (18650) to make it rechargeable and portable . Like this one http://youtu.be/jccC5gtD__g I do not know what should I use , which led chip and which driver ? What I need to make same light in this video? sorry, my English is bad but i'm sure you will understand me ;)

Asked by Cr77777 2 years ago  |  last reply 2 years ago


How do I attack my friend 11 ft. underwater at the public swimming pool? Answered

I remember when I first went to the bottom of the 11 ft. area in the swimming pool. I think it would be cool to have a battle like the toa mahri did. :)

Asked by krujh2 9 years ago  |  last reply 6 years ago


Artificial Gills

I don't kow about you, but I swim a lot and, as with most swimmers, would LOVE to be able to breath underwater without bulky air tanks or even a light rebreather. Fish take oxygen from the water so I don't see why can't I build something that does the same. Is there anybody who has any ideas or suggestions as to where I should look?

Posted by NumbersAndLetters 9 years ago  |  last reply 8 years ago


How well do electronics function under pressure ? Whats a SAFE limit ? Answered

I am building a pressurized environment and I need to house electronics

Asked by littlechef37 9 years ago  |  last reply 9 years ago


Waterproof Ultra Sonic

Does anyone know of any type of ultrasonic that is waterproof and can go underwater? cause im trying to make a fog machine using the ultrasonics pieces and water since my dad bought something that worked like what i described. anyone know of any that can be underwater or some design that will work underwater using a regular ultrasonic you see on robots?

Posted by KT Gadget 10 years ago  |  last reply 10 years ago


Sonic data transmission?

This is just an idle thought, but I was reading a couple of ROV builds, and the one thing they all have in common is a tether - it's a fact of the world that very little in the way of radio signal can penetrate water. So... Could you send control signals to an ROV via sound or ultrasound?  Could beeps and clicks carry enough data, far enough, and clearly enough, to control an ROV? Even more fun, how much data could come back? Sensor readings? Images? Just throwing it out there for you to toy with, but it would be fun to have genuinely-remote control for this class of robot.

Posted by Kiteman 3 years ago  |  last reply 3 years ago


GoPro Scuba Cylinder Mount

Hi there, I'm new here. I've recently found an entry-level 3D online modelling software, Tinkercad and have been Tinkering ever since. I'm into scuba diving and I've long wanted to design a GoPro mount for the cylinder to give a 3rd person view of me while I'm swimming about enjoying life underwater. (Think a less-sexy Lara Croft!) I wanted to run it past you guys to see what you think. I've attached 2 screenshots, because as you can see, the mount I've designed is collapsible, to save space in my GoPro bag. I've done the maths (Pythag) so each side is perfectly lengthed to create a right-angled triangle, with the hypotaneuse (long edge) is facing down my body, towards my feet, so that the camera view won't be obstructed. I've used a Pythag triple, so the arms measure 3", 4", 5". This was done for 2 reasons: a) It was easier to desine using these measurements and b) I don't want it sticking too far up from my cylinder so that it doesn't catch on wildlife/coral/divers. As this is my first GoPro mount that I've designed, I've had to go on deimensions I've found online for the actual hinges. I've settled on approx 3mm for each prong as well as the gap in between. I have actually shaved off .25mm from the middle prong of the 3-pronged-hinge, and left the 2-pronged-hinge at 3mm for the gap and prongs. I'm going to get the pieces 3D-printed by a local service I've found on 3DHubs.com, either in ABS plastic or in resin, though I'll probably go for ABS as it seems to be a bit more hard-wearing, even if it's not so detailed. In terms of mounting it to the tank, I will use 2 headstraps, with the over-the-top strap removed from each one and glue the plastic bits of each of them together, at the correct length of course. I would join them using a seperate piece of plastic and either a hot glue gun, superglue or even some sort of epoxy, whatever lasts longest in prolonged exposure to seawater. I would probably place it nearer the top of the tank, near to where the strap of the BCD jacket goes round it. Does anybody have any advice for me in terms of the design from a functional point of view as well as from whether they think it would actually get a good shot on the camera please? I look forward to your feedback, good or bad!

Posted by JackIsted 2 years ago  |  last reply 2 years ago


GoPro Scuba Cylinder Mount

Hi there, I'm new here. I've recently found an entry-level 3D online modelling software, Tinkercad and have been Tinkering ever since. I'm into scuba diving and I've long wanted to design a GoPro mount for the cylinder to give a 3rd person view of me while I'm swimming about enjoying life underwater. (Think a less-sexy Lara Croft!) I wanted to run it past you guys to see what you think. I've attached 2 screenshots, because as you can see, the mount I've designed is collapsible, to save space in my GoPro bag. I've done the maths (Pythag) so each side is perfectly lengthed to create a right-angled triangle, with the hypotaneuse (long edge) is facing down my body, towards my feet, so that the camera view won't be obstructed. I've used a Pythag triple, so the arms measure 3", 4", 5". This was done for 2 reasons: a) It was easier to desine using these measurements and b) I don't want it sticking too far up from my cylinder so that it doesn't catch on wildlife/coral/divers. As this is my first GoPro mount that I've designed, I've had to go on deimensions I've found online for the actual hinges. I've settled on approx 3mm for each prong as well as the gap in between. I have actually shaved off .25mm from the middle prong of the 3-pronged-hinge, and left the 2-pronged-hinge at 3mm for the gap and prongs. I'm going to get the pieces 3D-printed by a local service I've found on 3DHubs.com, either in ABS plastic or in resin, though I'll probably go for ABS as it seems to be a bit more hard-wearing, even if it's not so detailed. In terms of mounting it to the tank, I will use 2 headstraps, with the over-the-top strap removed from each one and glue the plastic bits of each of them together, at the correct length of course. I would join them using a seperate piece of plastic and either a hot glue gun, superglue or even some sort of epoxy, whatever lasts longest in prolonged exposure to seawater. I would probably place it nearer the top of the tank, near to where the strap of the BCD jacket goes round it. Does anybody have any advice for me in terms of the design from a functional point of view as well as from whether they think it would actually get a good shot on the camera please? I look forward to your feedback, good or bad!

Posted by JackIsted 2 years ago  |  last reply 2 years ago


I want to build a Underwater one way comunication device?

Basically what I intend building is a device,a mic placed in a reg/DV and linked by cord arms length to a sender/speaker.This would be placed against your buddies head and he could hear you speak. Obviously it would have to be submersable to about 15 meters. Any advice on gathering bits and parts and plans,would be much appreciated

Asked by Steeler 9 years ago  |  last reply 9 years ago


Swiss engineers build Bond-like underwater car

It is called the sQuba, and it is a car that runs on land, as well as in the water. Inspired by the Lotus Espirit, in the James Bond Movie, "The Spy Who Loved Me", the Swiss engineering company, Rinspeed Inc, was the mastermind behind it.If you are heading to the Geneva car show, it is expected to make a visit there.Read the full article at SFgate.com Company CEO Frank Rinderknecht, a self-professed Bond fan, said he has been waiting 30 years to recreate the car he saw Roger Moore use to drive off of a dock.The sQuba can plow through the water at a depth of 30 feet and has electrical motors to turn the underwater screw.You'll have to break out the wetsuit, however.The car has an open top, meaning that the two passengers are exposed to the elements."For safety reasons, we have built the vehicle as an open car so that the occupants can get out quickly in an emergency," said Rinderknecht, 52.Passengers will be able to keep breathing underwater through an integrated tank of compressed air similar to what is used in scuba diving.The sQuba's top speed on land is about 77 mph, but it slows down to 3 mph on the surface of the water, and 1.8 mph underwater.

Posted by Brennn10 11 years ago  |  last reply 8 years ago


12v underwater camera sys w/ monitor problems

I have 12v ir camera w 80' lead to a small handheld monitor (aquaview) switch is bad i need schematic or diagram info to fix, contacted dealer and was told no info or service option thru them other than a new monitor from them at $125 tot. have searched everywhere but cannot find this info anywhere, suggestions?had to "dremel" water proof case to access once in found switch is fine but several pwr/ground/vid wires disconnected at solder terminal no way to determine what/where, i need schematic info or suggestions.

Asked by l7lushis 9 years ago  |  last reply 9 years ago


Anyone know how to make those trippy/psychedelic light shows?

You know those "acid shows" or "light shows" that were really popular in the sixties? (I think Joshua White was a pretty famous light show artist...) Anyone know how to make cool ones? I mean... it seems pretty simple, and I get the basic concept. Colored filters, swirls of colored oil... and water... and alcohol maybe, And a projector... but is there a "proper" way or something? Probably not... but anything you know on the sibject helps. Any ideas? Or... instructbales? Oh. P.S. An instructable on Underwater Light shows would be welcome too. Woah. I just had an awesome idea. But I'm keeping it to myself for now.

Posted by iamthemargerineman 10 years ago  |  last reply 9 months ago


Free Canon Underwater Housing for A60 and A70 - WP-DC700

My Canon A70 broke, and I replaced it with a A720 that does not fit my waterproof housing. Anyone out there have an A60 or A70 and want a WP-DC700 waterproof housing? I'll send you mine for the cost of shipping it to you.

Posted by ewilhelm 9 years ago  |  last reply 8 years ago


What kind of battery do i need for my rov?

What kind of battery do i need for my rov? I'm in the middle of my rov project, i have five thrusters that take 60 volts total, 12 volts each and i don't no what type of battery to get like a car, atv, boat, etc....?

Posted by Percise 10 years ago  |  last reply 10 years ago


If rendered waterproof, what would happen if a plasma ball was placed underwater? Answered

Self explanitory I thought

Asked by Ginger Magnus 9 years ago  |  last reply 9 years ago


Led Pool Lights How/Ideas???

I want to make some underwater LED lights. Any ideas on DIY? thanks

Posted by R4fo 11 years ago  |  last reply 2 years ago


(newsletter) Make Money with Cards, Underwater ROV, Melon Carving...

Sep 25, 2008 Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup1","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); } Welcome back! The Craft Skills Contest closes for entries this weekend. Submit your own crafty project and win a Singer sewing machine! The latest round of Burning Questions has launched! Help us with your answers and win a cool prize pack! Enter your food hack into the Hungry Scientist Contest and win your choice of some sweet prizes. The Forbes Fabergé-Style Egg Contest needs your eggs! Take an egg (real or fake) and decorate it inside and out in homage to the classic Faberge style. You can win a Sonos music system, and get your egg featured in the Forbes Galleries in New York City! Live near San Francisco or planning a trip? Stop by for one of our build nights and make something cool in our office! October 2: Intro to Chainmail.Upcoming... Get ready for the biggest and best Halloween contest ever! October will be here soon, so start working on an elaborate costume and creepy decorations! Don't forget, anything posted since the close of last year's contest is eligible. How to make your fortune at cards by KaptinScarlet Make a superhero cape! by jessyratfink Build a wind turbine by mdavis19 Build a Surfboard Episode 1: Shaping by TimAnderson Closes for entries this weekend!Share your best food hacks! Joint Boards without a Jointer by Phil B Expandable Hydroponics System by wiley coyote Sliding pants rack by phantazn Illuminated Stained Glass Egg by RadBear Easy garlic bread and cheese by robbyt1961 Zombie Friend by Poe-tate-o Underwater ROV by SpaceShipOne Simple Melon Carving by dustinbikes 10 great outfit ideas to check out Unleash your decorating skills Easy T-Shirt Bleach Sketching by goosezilla Contemporary Street Number Plaque by cornflake_81 How to paint walls by dragonvpm Halloween decor werewolf head by missmonster Now go make something awesome, and I'll see you next week! - Eric Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup2","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); }

Posted by fungus amungus 10 years ago


Making a Computer program to output serial data to an arduino?

      I am making an underwater ROV, like a remote controlled submarine, and I am looking for a way to control it.  All of the commands are set up to run off of serial commands going to the on board arduino.  This is what I would like to know: Is there an easy way to send custom serial data over a computers USB port, controlled by some sort of virtual controller

Asked by ConnorFD 2 years ago  |  last reply 2 years ago