DIY water jet engine?

Hello. Me and couple of my local DIY buddies are also big fans of fishing. Because we are all students and can't drop 1K+ on normal outboard motor for our tiny aluminum boat, we are thinking on making our own. What we have here is a 200cc lawnmower engine. Because we don't wanna get into business of making our own gears we are looking for ways to implement water jet system. The problem is we just can't figure out what is gonna do a good job of being our turbine. Any suggestions? Does anyone know if the intake half of automotive turbocharger is gonna for pumping water?

Posted by Kizzmansky 8 years ago


Knex gun projectile propulsion ideas

So I'm looking for stuff beyond what has already been done. Pin guns are everywhere, slingshots are yet again pretty common, hammer guns have been made but don't have the same performance as the others, and then you have "rail"guns which have a shuttle that works similarly to a pin, but can have the track extended. We really need some new ideas here. I specifically do for my current gun as I have a wicked cool loading mech, but absolutely no propulsion mech and limited space to fit it in. Anyone have ideas that are completely different? If you suggest the following, because they have been done before, please try and make a mech that makes it more innovative still: deconstruction magazine multi band ratchet (multi shot slingshot: if anyone comes up with a magazine to replace of bands, kudos! Plz post dat ***!) a hammer gun that gets some f-ing range for once (we're talking 35-40+ ft without needing glued parts) Some ideas I've come up with that I haven't seen (and haven't made either...) are: enclosed trebuchet (probably spelt wrong, but google wanted me to say "Bucharest" so I'm just going to leave it as is) (an arm picks up a round at the back of it's arc, then comes forward like a hammer but doesn't rely on impact for round firing but acceleration instead) newton's compound cradle: a pin comes forward and hits a shuttle out of a catch, with that shuttle being pulled forward by bands so you have the impact acceleration, then even more from the other bands switchback: a pin comes towards the user, hits the bottom of a lever (hammer) which comes forward and hits the round If you come up with others, or mechs for these, please comment with your idea! Thanks, and let the innovation continue :)

Posted by Dreamwave 3 years ago


Propulsion Engineer

I want to design new propulsion systems that don't need to use combustion, what should I major in, I was thinking of majoring  in Aerospace engineering and minoring in Electrical engineering. Any suggestions? p.s. the propulsion includes, but is not limited to: anti-gravity/warp-drives  (Which physics says is plausible)

Posted by monkhm 7 years ago


Need some input on boat propulsion

Can someone help me out with some ballpark calculation of propulsion power needed to move a boat? I do have some specific questions: 1. Propeller vs. Jet: Which one will deliver more propulsion given the same amount of power. 2. If it is typical electrical trolling motor type propeller, is there some simple formula to represent relationship of boat speed, power needed (hp), propeller rotation speed, and diameter of the propeller? 3. If it is a jet: Is there a simple formula to represent relationship of boat speed, power needed (hp), boat speed, and GPF of water to move the boat. I know that I am missing a few variables here like boat's weight and its water displacement.  I am trying to keep it simple. Any thoughts and input will be highly appreciated. Thanks.

Posted by kabira 6 years ago


Can a magnetic propulsion system be achieved

Earnshaw's theorem states that a collection of point charges cannot be maintained in a stable stationary equilibrium configuration solely by the electrostatic interaction of the charges. This was first proven by British mathematician Samuel Earnshaw in 1842. It is usually referenced to magnetic fields, but originally applied to electrostatic fields. It applies to the classical inverse-square law forces (electric and gravitational) and also to the magnetic forces of permanent magnets and paramagnetic materials or any combination, (but not diamagnetic materials). Earnshaw's theorem has no exceptions for unmoving permanent ferro-magnets. However, moving ferromagnets, certain electromagnetic systems, pseudo-levitation and diamagnetic materials are areas to which Earnshaw's theorem doesn't apply and thus can seem to be exceptions, though in fact these exploit the constraints of the theorem.  Can we develop a safer cleaner transportation method that involves electro magnets that can propel cars using the city's grid to adjust the power on the street or road to move cars. similar to  famous movies vehicles like STAR WARS(c) Repulsor Lift(c) technology or The MATRIX(c) Ships OSIRIS?

Posted by daswokster 7 years ago


Surface tension propels tiny boat without sails or moving parts

From the New Scientist:WATCHING Sung Kwon Cho's model boat glide silently across the still water with no propellers or sails, you'd be forgiven for thinking a phantom hand was drawing the vessel forward. The boat is actually being driven by water surface tension, the same force that allows some insects to skate across the surface of a pond.The design is inspired by Pyrrhalta beetle larvae, which also use surface tension to propel themselves. Since it requires no moving parts, the method should be more robust than those involving propellers and may use just a hundredth of the power.Another story on the NetworkWorld site (with a few skeptical comments.)Doesn't look too difficult to replicate, does it?

Posted by gmoon 9 years ago


Tin Can Turbine Engine

Hello!               Let me give you some insight into this project (Tin Can Turbine). I'm going to school to get an Airframe and Power Plant Cert. (Aircraft Mechanic). I stumbled across this idea on YouTube one day in class and it really got my gears turning. It's purely for fun, and I'm not even sure if I have the technical skills to get it to work.             First of all the way a turbine engine works in layman's terms is Suck, Squeeze, Bang, Blow. The fan section sucks air in from the atmosphere, Where it is moved to a compressor section which squeezes the air into a tighter pocket of air; which makes the air hotter and more explosive. When the compressed air is pushed into the combustion chamber, it is more volatile than normal air due to the compression. When you add a fuel (jet fuel, gasoline, propane, kerosene etc...) it will ignite with the compressed air (given that there is a spark to get the fuel vapors to ignite). When the fuel/air mixture is lit the fire will continue to burn without an ignition source due to the explosive nature of the compressed air. And the gas (burnt fuel/air) is pushed out the exhaust. There are blades in the rear of the engine called turbine blades, which are connected to the front of the fan/compressor section, in some cases there are two or three turbine blades, which drive the fan, compressor sections independently. Due to the turbine blades being pushed by the exiting gasses, the engine becomes self sustaining. And through black magic, you have a jet engine!!!              I'm going to attempt to construct a jet engine (not a motor!) out of a "tin can". I'm really not going to use a tin can, I'm actually going to use .032" thick 3" wide, and about 6" long exhaust piping made out galvanized steel. It's a lot thicker than a typical soup can, thus willing to stand up to more heat. My proposed fuel source will be propane, because it's cheap, and the I'm sure that I'm capable of controling the amount of fuel going into the engine. I'm not sure yet how many fan blades vs. turbine blades that I'm going to use. Right now I'm in the experiment phase. My blades are going to be made out steel can tops, because there is very little cutting involved, beside the actual cutting and angling the blades. and they fit perfectly into the pipe. As for the fuel delivery i'm going to use a copper pipe that is approx .042 thick and hallow. I'm going to cap the end, and wrap it around the inside of can. There will be eight holes drilled into the copper, which should give it plenty of fuel at equal pressure all the way around the can, equals same heat all around.         As for the drive shaft, I'm not exactly sure of what to use for that. I may want to go with something hardened already, so the heat surrounding it won't melt it. (that's the hope anyways) . I'm also not sure of what sort of bearings I will use. I was thinking skate board bearing with the plastic crap around the middle taken out (so it doesn't melt and seize the bearings) and extreme high temp. white lithium grease for lube.          This is an experiment and I guarantee myself absolutely no success. But I think it will be fun to try. Questions or comments are more than welcome. Please, if you see any problems with the design, let me KNOW!!!

Posted by shawnpc 6 years ago


How to enter space orbit using raw humanpower!!!

Hi all! I was wondering what it would take and if it is even possible to reach space atmosphere from your backyard using nothing but humanoid musclepower to reach the outscirts of the earths atmosphere! to reduce weight i would suggest to put on a licht as can be space suit, strap on some oxigentanks and go, go GO! But, what device would be best suited for the job?\ And what would you "absolutely" need to reach outside of our atmosphere? Greetings earthlings!

Posted by AriedeB 6 years ago


Check out this Awesome Ship Propulsion System

Http://www.voithturbo.de/vt_en_pua_marine_vspropeller.htmTo see it in action -- click "Open iVSP - Interactive VSP Program" on the bottom half of the page.Just wondering if anyone got as excited as I did... or at least just as amazed as I was :p

Posted by trebuchet03 11 years ago


Jetpack-HELP - Gas turbine backpack-Make/Build???

Hi guys busy with an EXPO school project  I'm trying to make a Williams gas turbine backpack but only find dead ends on the net Can someone PLEASE share some info on how to make or build ASAP  Flight time doesn't have to be more than 8-10 seconds but if possible that'll be great !! And lift doesn't heave to be more than 15-20 cm off the ground . Any help is greatly appreciated  THANKS  -IronMan-

Posted by -IronMan- 5 years ago


Mattress-mobile propulsion

So my friends and I have built a mattress cart. It's basically this: http://s.sears.com/is/image/Sears/07180002000 with the sides down and support bars with a mattress and a box spring on top... So my question is: We need a way of making it go i.e. a motor or pedals or something. It can be gas, man, or electrically powered. Does anyone have any ideas?

Posted by alecaim 8 years ago


Maglev Train using Electromagnets

I have made a simple maglev train, using Electromagnets. It uses repulsion. and everything is working....except Propulsion. How can I propel it? I can remake the project if required.

Posted by NHarmonia 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


Anti-gravity Machine concept

This is a concept I came up with for an idea of an anti-gravity machine.  Let me just state for the record... I do not think this will actually work.  However, while I am quite certain this idea should not work... based upon my limited knowledge of science... it would seem like it could work.  Unfortunately I know I am never going to spend the thousands if not millions of dollars to build this concept to find out. The basic premise of the idea is the use of angular momentum to overcome the force of gravity.  Imagine if you will, a gyroscope spinning at such a high velocity that its outward force overcomes the downward force of gravity.  Naturally, one of the big obstacles is generating the speeds necessary to create the velocity such that angular momentum is greater than downward force. What I essentially propose is a spinning ring that is propelled in the same way as a maglev train.  Using Electromagnetic propulsion or EMP to accelerate a ring in a vacuum by the utilization of a flowing electrical current and magnetic fields may in theory generate the speeds necessary for the force to overcome gravity.  Unfortunately, the power to run such a vehicle and the weight to power ratio are significant obstacles. Two of these rings above one another I theorize can create tremendous propulsion if the angles of the rings were changed.  Using hydrolics to change the angle of alignment of these two rings may create incredible forward momentum.  Once more, such a vehicle would not be limited to operation within Earth's atmosphere unlike jet or other propulsion mechanisms.  In fact, it should operate at peak efficiency in a zero gravitational environment. This is all theory... and I'd love to know if it is indeed as crazy as it sounds.

Posted by DarkRubyMoon 8 years ago


Dilithium created and observed in the laboratory!

According to a news report in Physics Today, scientists at Lawrence Berkeley National Laboratory have confirmed the creation of element 114 first reported by Dubna physicists in 1999. As true afficionados may recall from the original Star Fleet Technical Manual (pictured), element 114 is dilithium, used to regulate the matter-antimatter reaction for warp propulsion. Unfortunately, with a lifetime of just a few hundred milliseconds, it's unlikely that crystals of element 114 will be produced any time soon.

Posted by kelseymh 9 years ago


All Terrain Hex Limbed Extra Terrestrial Explorer

Here is some inspiration for those robotics hobbyists out there. It is the ATHLETE Robot designed by Jet Propulsion Lab in Pasadena, California. The fast motion videos are my favorite. It has some nice moves, however they might be a little slow.http://www.popsci.com/military-aviation-space/article/2008-04/lunar-habitat-hauler( A portion of the article)The Winnebago isn't exactly a marvel of technology. But there is a good chance that NASA's next generation of lunar travelers will live and work out of a two-piece system mobile robot and habitat combination that will allow astronauts to bring base camp with them that has plenty in common with the humble RV.What you see on this page is the part that makes this home mobile: Athlete (All-Terrain Hex-Limbed Extra-Terrestrial Explorer), a six-limbed habitat-hauler being developed by the Jet Propulsion Laboratory in Pasadena, California. Made of aluminum, this prototype Athlete is eight feet wide and seven feet tall. It gets around using six independently controlled legs equipped with ultra-light wheels. In more-challenging terrain, the wheels can lock in place and function as feet, allowing Athlete to tiptoe through boulder-strewn fields or climb up steep hills. The mission-ready robot, which will be about twice the size of the prototype pictured here and made of steel, should be able to haul a load of up to 15 tons pretty much anywhere it wants to as long as it obeys a 3mph speed limit. That is about as fast as you can go without risking flipping over because of the low gravity, explains Brian Wilcox, the primary investigator on the Athlete project.Here is an informational video of the ATHLETE. Here is a video of the ATHLETE in action! ( Photo from http://www.pestaola.gr/img1/nasa-athlete-rover.jpg)

Posted by Brennn10 10 years ago


Tesla's human powered helicopter possible?

I know he was a smart dude and he went out of his way to patent this. Was it ever built? Could it be built and work? I don't understand the propulsion system. Is it like a bicycle or is it something else? I need one of these bad to deliver free fruit to people everywhere. My car keeps getting stuff in traffic. I don't know where all these cars think they're going, but I've got places to be and the road just isn't cutting it anymore for me. And dangit the uploader isn't working. Here's a link to the patent description and images: https://www.google.com/patents/US1655114 Well, not a link. A  URL. I dont know how to do a hyperlink without the- nevermind. sort of figured it out. Click below: https://www.google.com/patents/US1655114

Posted by avocadostains 11 months ago


Micro K'nex Killer Kobra roller coaster Update 1

Hooray!!! Update!!!! Thanks to the people of instructables I have been able to make progress on my micro knex killer kobra. Thanks to your votes I have added a Zero-G roll. Apart from that I have added a cutback and a small hill. Now I have two more options for you to choose from. The last two pictures show what each one is. Option 1: Barrel roll Option 2: Helix Just so you know right after one of these elements I will add a propulsion system that will hopefully give me enough speed to add a few more elements. The first element to get 4 votes wins.

Posted by Tornado96 8 years ago


Wind Power Charge Regulators

Hello!! I need some help here...I am very "green" when it comes to alternative energy, so bear with me please! I recently decided to put together a small wind generation system to power my workshop. System is comprised of a 38v Ametek PMDC motor, 6.8' tri-blade array for propulsion. I also intend on installing a 2000 to 3000 watt modfied sine wave inverter powered by my battery bank to provide AC voltage to the shop. I want to be able to used the majority of the power created by my wind generator. I understand the concept of using a "shunt" but do not have a need for hot water or useless lighting. My question is this, would the Flexcharge NC25A charge controller (www.flexcharge.com/flexcharge_usa/products/nc25a/nc25a.htm) be sufficient enough to used in this system? Or is there something else out there that would maintain my battery bank without shunting the load when the bank is fully charged....Thanks in advance.

Posted by NMCBDet23 10 years ago


Iconic Prototypes

Over at Wired, there is a photo set of early prototypes of iconic products. Here is the story for everyone's favorite summer toy, the super soaker:   Lonnie Johnson was trying to build a better refrigerator, based on a low-cost heat pump that circulated water instead of Freon. But when one of his custom-machined brass nozzles blasted a stream of water across his bathroom, Johnson—by day an engineer at NASA’s Jet Propulsion Laboratory—realized he had the makings of something way more fun. A shotgun-style air pump and a series of check valves allowed for sniperlike range and accuracy with little exertion. Selling the idea to toy companies, though, was more of an effort. After seven years of frustration, Johnson scrapped his difficult-to-manufacture Plexiglas “pressure containment vessel” for an empty 2-liter soda bottle. It wasn’t slick, but it was easy to make. In 1990, the toy maker Larami brought the Power Drencher to store shelves; it sold roughly 2 million of them in the first year alone. Rebranded as the Super Soaker, the line has raked in sales of more than $200 million to date.

Posted by frenzy 8 years ago


I need your suggestions for my upcoming iBle!!!

I was deciding on whether to let y'all know what I'm working on, and since I don't know much in the area I'm working in, I decided it would be best.I am working on an amphibious bicycle that can operate efficiently on land and water. There are just a few on the Interweb, and they are for sell at high prices ($500 bucks at least.)I am trying to do this with as little cost and as much recycled materials as possible.So far, I've decided that:My propulsion mechanism either has to be a prop like your average boat, or a paddlewheel. Both would be powered by my back wheel.I am considering wooden pontoons filled with 2 liter bottles or gallon milk jugs, reminiscent of this iBle.I want to stay as high as possible, but I want to be able to go straight from land to water and vice versa. Basically, no assembly required to change terrain.If anybody has any ideas at all, please let me know!Thanks much,Bran!

Posted by Bran 10 years ago


Wind Powered Quad-Cart

I haven't seen anything this on here so I thought I'd step up. Engineers (or anyone who fancies themselves A DIYer) I found a few days back I little some very interesting Wind Powered Rides...six-or-seven-ways-wind-powers-vehicles OK so we know it CAN be done, but can it be done by a DIYer? OK here's my concept, Design and shape are optional but basic components are such: Take a pair of multi-speed Bicycles, their gearing will be the basic propulsion for this vehicle. Take one of the "bikes" and hook up a prop where the pedals "where" and set the wheel output to be higher then the prop speed, this should take care of the foreward movement once going. Now for the initial starting power (Bike 2), this can either be by petal, or by electric (solar/battery- up to you) But the basis for this whole thing is simple energy transfer, if the moving air over the prop causes the drive wheels to go, and by having them geared higher, the vehicle SHOULD move faster the faster you go ..Right? Can I get some math to back this up? it sounds like it would work.

Posted by Green_Primus 10 years ago


Full Auto K'nex Gun Idea (Seriously)

To anybody interested in creating a fully automatic k'nex gun: Take a simple method of propulsion: splodies grenades or something of the like. Not a complicated ram-rod mechanism or anything like that. Find a way to make them a bit smaller and more stable (splodies are very unstable) via some sort modification. Then find a way to stack them, one by one, in a magazine. Find a way to release one end while using the other as a launching point inside the chamber of the weapon. Once the first end is fired, the second end is pushed up and out of the right side of the gun, mimicking shell ejection on automatic weapons. After the shell is ejected, the next piece of ammunition is fired and ejected, and so on. If anybody can figure out how to create this mechanism AND find a way to control it via a trigger, they will have created the first magazine fed, shell ejecting, fully automatic knex gun. And to whoever claims that it wouldn't be considered fully automatic, think again. Loading the gun would be a painful process, yes. But it would be fully automatic, because a fully automatic weapon fires continuously while the trigger is pulled, no matter the circumstances. And with the option of removable magazines, the possibility is certainly there. If anybody can actually succeed in this idea, all I ask is that you post it so we can build it as well.

Posted by Ikedog1995 6 years ago


Weed Whacker-Powered Bicycle

This is a bike I built a year ago. It uses a 30.5cc (about 1.5hp) weed whacker engine for propulsion. A version of the same thing was on Instructables, and that's what partially inspired me to make this. ;) The engine mounts are made out of wood, because I still have not learned to weld, but they hold up just fine. The engine is an ten-year-old Echo weed whacker. It has 10,000 max RPMs. The bike peg attached is 2" in diameter and gives about 25mph top speed. There is no clutch! The one that came with the engine was way too flimsy for a vehicle like this so I took it out. Saved a lot of space, too. For the throttle, I disconnected the back brake line and connected it to the engine. The front brakes are still intact, and you can turn the engine off to slow the vehicle as well. I added the extra heatsink to the engine to help keep it cooler, as it was never meant for this kind of exertion. It gets as hot as the engine, so I guess it conducts the heat away pretty effectively. There is a 10-LED bargraph to show the engine temperature. It uses an LM3914, an op-amp, and a thermistor. There is also a 555 to drive a buzzer when it gets too hot. The bike has head and taillights that are both driven from a joule thief. They are not very bright; they are more for being seen than to see. Here's a youtube video, taken almost a year ago: http://www.youtube.com/watch?v=bdySFqmK0Fw Some more photos and a little more information: http://forums.modretro.com/viewtopic.php?f=3&t;=656 Comments/criticisms? :)

Posted by 1up 8 years ago


Excercise car?

What I am designing (and planning on working on very soon) is a vehicle with the possible speed of a gokart, but with a propulsion system similar to a bike. The mechanism itself would be a simple push pedal (like a car) but with a gear system like a bicycle. Upon pushing down the pedal, a shaft connected too it would then push against the foremost gear. and that gear would push another and so on until it comes in contact with the rear wheel, propelling it forward. A simple spring between the pedal and floor will allow the pedal to return to the original position. However I cannot seem to get the steering and brake system down right. Should the steering be that of a car and use 2 wheels on the front with a long axel connecting the 2? or more like a bike, with a one wheel turning system. (aka. should it be a 4 wheel or 3 wheel? Might depend on weight distribution and balance, though both could be possible.) and how should the brakes be arranged? a pedal, like a normal car brake, or a stick beside the driver, like an emergency break, as well as where the brake pad would come into contact with the rear. On the axel or on the wheels? Last (and most definitely not the least) is that while this vehicle must be sturdy, it must also be light weight. So any and all material recommendations for parts would be greatly appreciated. (cheap would also be appreciated) (My thought for material) chasis - light, but firm (strong) wood. axels - aluminum or steel tires - Gokart/ riding lawn mower turning wheel/steering - wood or plastic seat - whatever I can find that's soft (not a major thing) safty belt - I may not be able to test out the prototype (kinda thick) so I need the crash test dum *ahem* "driver" to survive incase a crash were to happen. brake pad - rubber so that it causes the right amount of friction but not enough to damage any parts.

Posted by curvy77 5 years ago


Free NASA Software!

From the NASA press release: NASA has released its 2017-2018 software catalog, which offers an extensive portfolio of software products for a wide variety of technical applications, all free of charge to the public, without any royalty or copyright fees. Available in both hard copy and online, this third edition of the publication has contributions from all the agency’s centers on data processing/storage, business systems, operations, propulsion and aeronautics. It includes many of the tools NASA uses to explore space and broaden our understanding of the universe. A number of software packages are being presented for release for the first time. Each catalog entry is accompanied with a plain language description of what it does. “The software catalog is our way of supporting the innovation economy by granting access to tools used by today’s top aerospace professionals to entrepreneurs, small businesses, academia and industry,” said Steve Jurczyk, associate administrator for NASA’s Space Technology Mission Directorate (STMD) in Washington. “Access to these software codes has the potential to generate tangible benefits that create American jobs, earn revenue and save lives.” NASA published the first edition of its software catalog in April 2014, becoming the first comprehensive listing of publicly available software to be compiled by a federal government agency -- the largest creator of custom code. Since then, NASA has shared thousands of its software programs with students, industry, individuals and other government agencies. “Software has been a critical component of each of NASA’s mission successes and scientific discoveries. In fact, more than 30 percent of all reported NASA innovations are software,” said Dan Lockney, NASA’s Technology Transfer program executive. “We’re pleased to transfer these tools to other sectors and excited at the prospect of seeing them implemented in new and creative ways.” The searchable catalogue is here: https://software.nasa.gov Wouldn't it be cool to use NASA code in your next project? https://www.youtube.com/watch?v=JIpyc8AfMZY

Posted by Kiteman 1 year 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


RoboGames Robot Contest Winners

Instructables and RoboGames are happy to announce the winners of the Robogames Robot Contest! With all of the fantastic robot entries out there, the task of creating your own robot army has just gotten a lot easier. We'd like to send a big "thank you" to everyone who took the time to share their knowledge and expertise with the rest of the world.Judging was done by David Calkins, Simone Davalos, Eric Wilhelm, Robin Lemieux, Robots Dreams, and Sb.And now, on with the winners! Second Prize The authors of these Instructables will each receive a Robot prize package including both Instructables Robot and RoboGames t-shirts, and a selection of robot-themed stickers. Category: Locomotion Pneumatic Animatronic Lego Snake Inchie BiPed robot V-3 The Manta Drive: proof-of-concept for an ROV propulsion system How to build the one motor walker! Category: Manipulators Mechanical Dry Erase Board How to build a simple robotic arm from Lego Mindstorms NXT? extendo hand Rubber band shooter / minifigure launcher Really, REALLY Easy USB Motor! Category: Brain Experimental Robot Platform Building Small Robots: Making One Cubic Inch Micro-Sumo Robots and Smaller RC truck robot conversion Ard-e: The robot with an Arduino as a brain Beginning LCDs Category: Sensors Ultrasonic Batgoggles DIY lego light sensor infrared ground/object sensor for robot navigation robot movement distance control fischertechnik Easter Egg Robot Category: Aesthetics WowWee's Elvis Alive to The Elivinator Project Wall-E Robot How to design and build a combat robot K'nex Programmable Automaton How To Build Your Own Instructables Robot Assistant Category: Reuse & Recycling Individuality Bot Build Your Own Butler Robot!!! - Tutorial,Photos, and Video How to Build a Robot - The BeetleBot v2 ( Revisited ) The Rock SOCBOT - the next generation vibrobot First PrizeThe author of this Instructable will receive a RoboPhilo Walking Android kit! Plus the Robot prize package including both the Instructables Robot and RoboGames t-shirts, and a selection of robot-themed stickers. Wall-E by 4mem8 Grand Prize The author of this Instructables will receive a trip to the June 2009 RoboGames in San Francisco, CA! Includes airfare for one from anywhere within the continental US, 4 nights in a hotel near the event, and VIP access/entry fees. Experimental Robot Platform by societyofrobots

Posted by fungus amungus 10 years ago


Oil Spill Water Cleanups As Fast As They Happen

We live and survive on oil today. That dependence won’t go away for at least a few more generations. Today’s technology allows us to drill oil just about anywhere in the world, and then move it to anywhere we want using behemoth water vessels. Unfortunately, there’s a dark side to all this and it happens when our technology fails us, as periodically demonstrated by mankind’s great oil spill disasters. The most recent being the Gulf Oil Spill of 2010. The amount of oil actually dumped upon our ecosphere and contaminating the environment was mind boggling. The numbing numbers are so large that we can’t even get our minds around it. And we all know that the responsible drilling company won’t fess up to how much was really spilled because even they don’t know, don’t want to know and furthermore want to forget about it. Is there some way to tackle this oil spill problem through the use of the very culprit that created it, namely technology? Of course there is, but it will cost the billions they used to clean up the mess they created in the first place.  We want to develop a technological process to be used worldwide that borrows from what we currently know, and clean up these oil spills almost as quickly as they happen upon our seascape. Did we finally clean up the Gulf oil spill?  Yes, maybe? But it took too long and we either didn’t use the right equipment or not enough prepared and available equipment to check the problem. Time is probably the most critical factor involved in mitigating oil spill disasters. While Nature obviously works to clean up ecological disasters, she takes perhaps a decade or more to make a region whole again. We need to help nature accelerate her time schedule to a few weeks not decades! Oil cleanup equipment exists that is too painstakingly slow and inefficient to get the job done quickly and effectively, and to recapture ~99% of the oil spilled. Today’s processes are makeshift, disjointed, and not organized nor designed to tackle today’s mega-proportion oil spill problems.  We need a cohesive mega-solution to handle mega-problem oil spills. A virtual army of specialists with proper equipment to attack, gather up and capture, then deliver the spilled oil to vessel staging platforms. These huge platforms will separate 99.9% of the captured oil/water, dumping the water back.  Oil tankers on standby then take this recaptured crude oil to refineries. This process must be set up with the proper equipment to dynamically proceed in real time. Only high sea states should be capable of halting its operation. The process of oil/water cleanup requires the serial use of various sequential operations where each performs a key stage of the operatic procedure. The orchestration starts with techniques that initially yield the biggest volumetric punch first, then refines this processing by using less volumetric cleaning ability but greater oil separation capability. All the while we have deployed an improved form of today’s containment apron, capable of hundreds of miles of coverage to prevent spreading the spilled oil slick to shore. Having researched today’s available oil spill removal systems, their usefulness has been categorized according to volumetric processing capability per time. Fast surface skimming techniques plus “huge”, constant flowing centrifugal separators clearly win, but are not 100% effective. Sponge-type, oil absorbent techniques then come to play as they are useful in nearly recapturing the remaining 0.1% oil from the water, but are slow and will be used solely on the remaining 99.99% pure water expelled from our centrifugal oil separators. Today we literally use these absorbers like sponges, dunking them into the oil slick, waiting awhile and pulling them out after they’ve absorbed some oil. Such prolonged processing times are unacceptable. Absorbers are to be used differently than today, their performance is vastly accelerated as they now act as 0.1% oil filters to process the pressurized water expelled from the centrifugal separators. The final residuals of perhaps 0.01% that the high pressure absorber filtration misses will require oil break down chemistry whose end products are environmentally friendly and allows Nature to restore balance. So the actual water dumped back will be better than 99.99% pure. Now let’s break this process down a bit and address the pieces of equipment involved. Our attack vessels are special, high speed catamarans that ferry cars between different ports today. They use water-jet propulsion, are extremely fast, maneuverable, and will be equipped with a special front-end water scoop to pick up the oil/water slick in real time while propelled forward. Their scoop or nozzle articulates, performing real time adjustments responding to oil slick depths thereby avoiding too much water pickup. Once their holding tanks are full, they reconnoiter with waiting intermediate-sized tankers to quickly dump their oil/water cargo. When these tankers are full, they deposit their load to one of the huge vessel platforms. These staging platforms use centrifugal systems to quickly and efficiently separate huge quantities of the oil and water, and dump the 99.9% cleaned water overboard (Nature effectively handles the remaining 0.1% of oil). When their tanks are full of oil, they start emptying themselves into the large standby oil tankers for delivery to refineries. QED. For you science fiction/fact fans, this concept requires enormous equipment, is on a huge scale and if viewed as one harmonious system may be the first Oil-Terra-Forming machine to be used on our planet.  

Posted by RT-101 6 years ago