I'm working on a flying tazer and have everything primed and perfect, but i can't figure out how to shoot the thing!!!!!1 along the lines of springs, compressed air, or electricity ( coilguns )please...
Topic by instructa-fan | last reply
I just made a crossbow from Lego (not much fire power but it works) and I have been firing pencil from it but they hardly go straight. i tried adding cross fins and even an elevator hoping that it would be stable but it isnt working so if anyone has any ideas fire away.
Topic by blckthng | last reply
Ok, i have this transformer that i pulled out of a mac computer a couple years ago, i dont have it with me nut i think its a flyback. If it is, could i just hook it up to a battery and capacitor to make a charger or do i have to build some sort of modulator or switcher? Almost anything helps, thanks.
Question by budhaztm | last reply
I need brand recommendations and wing measurements so it can fly!!! Anything else about small electric airplanes will be fine! How would you connect three different electric motors to a LIPO battery?
Topic by Sk8terthing | last reply
Question by ms10 | last reply
I need to buy and where should buy them i need the good in low cost and i live in canada
Question by ms10 | last reply
This sunday i will show everone how to make a rc plane from oround the house things. the things u will need is 1 motor 1 hanger 2 servos 1 shoe box so im am tellin you this so u will get ready to make it. if u are exicited about this please comment on it.
Topic by RcMaKeR | last reply
I guys, my problem is that my quadcopter not fly, my setup is: - Motor: 4xNTM 28-26 1200kv 286w http://www.hobbyking.com/hobbyking/store/__17345__NTM_Prop_Drive_Series_28_26A_1200kv_286w.html - Propellers: 4xPropeller GWS 10x4.5 https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=31129 and https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=35243 - Esc: 40A https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=36686 - Frame: SK450 Glass Fiber https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=32537 - Battery: Turnigy nano-tech 4500mah https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=36234 - Controller: Arducopter The total weight of this quadcopter is 1200g. I don't know why not fly, when I put the throttle to 2000 (max power), the copter is lifted a few centimeters(5 cm). can you help me? thanks in advance :)
Question by AndreaP117 | last reply
If I can't use a fan, wat can I use while keeping it perfectly sphericle? It also has to sort of control itself with voice comand overide
Question by super knex builder | last reply
I have currently started building a 3 axis rotating Flight simulation rig that can simulated any 3D motion with a pilot inside the main cabin in control. I know the project needs a lot of disciplines working together (Steel design-mechanics-electrical-electronics-control-programming) So I assembled a team of engineers who got interested in the idea but we are not all highly experienced and the issue is new to all of us. So far we managed to design the rig it self as in steel design area. when we started moving along to the next phase which is the mechanical parts and joints we faced a lot of issues regarding the weight and balance of the rigs. The attached image is for a flight simulator done by a company in Russia. We have great ideas for improving that design and building our own non expensive simulator. I didn't post our full design model done in solid works cause it's not yet perfected. All I asking is that , if there is any one out there willing to help us share the knowledge or has a bit of experience in the subject, or wants to join our collaborate work, please don't hesitate to contacts us. I don't know the forum rules so I won't post my contact information here, but please feel free to discuss the subject with us on the forum, so we might benefit all together from this experience.
Topic by zayed_hossam | last reply
I have an urge to play with high voltage. Maybe a Jacobs' Ladder, maybe a plasma speaker, maybe just make sparks and burn myself. Does the make / model of flyback transformer matter? Or do they all connect the same way? For instance, would you recommend this model?
Question by Kiteman | last reply
People and micro-aircraft race to rescue 'hostages'Robots inspired by moths, locusts, flies and swifts will take to the sky this week in an international competition for micro aerial vehicles in Agra, India. Teams will vie for the title -- as well as up to US$600,000 in funding -- for their tiny flying machines.The mission calls for squads of aerial and ground robots to reconnoitre for human 'commandos' tasked with reaching 'hostages' in a building one kilometre from the launch point. The robots will need to detect and disarm simulated chemical mines in an urban environment, and guide the commandos past guard teams to the hostages -- all within 40 minutes.The robots will use a mixture of wireless communication with a ground-control team, and autonomous navigation."It's a tough competition," says entrant Hemendra Arya, an engineer at the India Institute of Technology in Mumbai. "It really gives a challenge for the designer."Micro aerial vehicles (MAVs) are hard to detect, maneuverable, portable, and more energy-efficient than larger aircraft. The United States is currently using first-generation MAVs the size of a rucksack to warn convoys about roadside bombs in Iraq.Larger unmanned aerial vehicles such as the Predator have been used for years to spot and attack enemies, but they need an airfield. The effort to build smaller craft got a boost when the US Defense Advanced Research Projects Agency (DARPA) began sponsoring competitions in late 1996. The US Department of Defense is co-sponsoring the Indian competition. more here
Topic by ewilhelm | last reply
Created Rubberband aeroplane ,and glides fine without propeller.But when the propeller is turned ON ,it just lost the balance and its not climbing into height.The propeller is home made.what would be the reason?.please help me.
Question by AnasCS | last reply
My idea is having fireproof fake or even real straw, a tube for rockets and rockets on the foot rests to turn and balance out. Speed is increase the power of the rockets or add more rockets. Only problem I've thought of is size. Will it work please help me.
Question by LordDestructionF | last reply
Hello all...I was looking in at the discussions of the possibility of long range radio control airplane operation and can make a few comments drawn from my research into the topic, with my opinions directed toward the USA market area ; First, Americans are bound by Federal Communications Commission regulations so we must abide by them or risk steep fines or legal trouble if caught. Second, the frequencies assigned by the FCC for radio control hobby use are already allocated, so modifications to your control systems in terms of frequencies could be illegal. Third, the maximum output for radio systems in the hobby is 1000mw (1 watt), which will easily control your miniature aircraft out to 1 to 2 miles, where you will need a video camera, transmitter, reciever and viewing device to even keep track of it ! There are several manufacturers that are way ahead of most of us here - offering pre made systems that are plug and play (no head scratching needed) . Search "FPV systems" on your computer and you'll find them. Bear in mind that to use these systems in America, you will need to obtain an amateur radio (ham) operator license to be legal (again, so if you get checked, you won't get in big trouble with the Federal Government ). I'm still looking into it myself, but if you want to see a good example of a really sharp Canadian who has a handle on this, search " VRflyer" on YouTube. He started doing this quite a few years ago and has some great video of his projects and results !
Topic by 2512rc
Its to use for ailerons on my rc plane
Question by GalaxyX | last reply
Anybody any idea what sort of voltage/current this flyswat puts out? It runs on two AA cells. No particular project in mind at the moment, but I'd like to make sure it's safe enough in case of accidentally shocking other people.
Question by Kiteman | last reply
I have broken the primary & secondary coil pins of a fly-back transformer and i need to repair it. can anyone help?
Question by ferraririder123 | last reply
Any ideas please help! And also the battery doest stay in the bracket in the bottom. I tried Velcro but it didnt work.
Topic by Aron313 | last reply
I'd like to make a cardboard bird (about 12 inches) fly across a room and return to their originating spot using a motion sensor/detector. Any thoughts?
No, really.Andy Woerner and his crazy rocketeer friends have built a 21-foot long X-Wing model that can actually fly. Yes, this is a real X-Wing powered by four solid-fuel rocket engines complete with radio-controlled moving wings. It blasts off in California next week, and we talked with Andy about the project, and how they expect it will do. The X-Wing model is huge. At 21 feet long and with a wingspan of over 19 feet it is, in fact, big enough to fly a kid in. However, knowing that it will be powered by solid-fuel rockets, they wouldn't put a kid, dog, monkey or Gizmodo editor inside, even if it uses three full parachutes to land.After drawing the plans using CAD software, Andy's team and his friends at Polecat Aerospace (with the help of RMS Laser and Aerotech Consumer Aerospace) used laser cutting to make the pieces out of Baltic Birch wood. They also used solid aluminum for some parts, like the rods which are the pivot point for the wings. full story with more pics
Topic by fungus amungus | last reply
Question by WerdnaN | last reply
Question by WerdnaN | last reply
Question by vitkusa | last reply
An ornithopter which uses -- flapping wings -- remote control -- able to fly for atleast 3 minutes -- Please includes materials and process. Thankyou
Question by amuchaku | last reply
Ok, so in the past few months I've came up with an idea for a maglev-esque flying broom design after re-watching Harry Potter. It would hover over a magnetic track using two electromagnets- one in the handle and one hidden in the broom straw. The power of the magnets could be controlled via a control panel/joystick on the handle of the broom, letting the rider control the height of the broom. I'm not sure how the speed would work, but if I understand magnetic propulsion right, it should move forward by itself. Is there any way i could get it to where the rider could control the speed? And also, I'm assuming this will cost way more than I can afford, so at the moment it is all hypothetical.
Question by ALogan97 | last reply
How to tune the copter for more stability? how to make it fly at higher altitude?
Question by Naveen D S | last reply
I was building my 4d rc plane, and then i thought if i could build a rc conputer controlled uav, and fly it over the neighbour s house, and with a pan and tilt camera, it would be nicer. and i don't even need to go to the flying field. I was wondering, if i could make a rc plane with more than 1 hour of flying time and can fly with a range with 20 kilometers that would be the perfect model. How is it possiable to make a light yet powerful plane. pls help me with this project ps.i have a budget of 400 dollars.
Question by stevenzhang | last reply
How much should the input voltage be for it? Cause I heard that 120AC can destroy it. I need to know. thanks
Question by Mudbud | last reply
I built a quad copter. I have done all the calibrations correctly (accel, compass, rc, esc). When I arm the drone, motors and propellers are spinning. But when i give more throttle to try to hover it, it doesnt fly upward steadily. Instead it lifts backwards and falls. Why is this happening? Should I change some PID setting?
Question by prash319 | last reply
I've been doing some reading recently on how the mind can adapt and change it's perception of reality to accommodate new sensory inputs - like the glasses for the blind that turn visual data into sound patterns and the compass belt that helped give people an innate sense of direction. My idea was to take a series of small webcams and arrange them on a headband so that they cover a 360 degree panorama around the wearer, then join all the images together and feed it to a set of video goggles. Initially I imagine it would be very disorientating, but hopefully after a while the wearer's mind would start to compensate for the distortion, giving them panoramic vision. I assume the various feeds from the webcams would have to be routed through a computer to process them into a single image, but I'm not sure how that could be done on a software level. Thoughts? Ideas? Help? Warnings? All appreciated. Thanks once again.
Question by jlensher | last reply
I ALSO NEED ANY RELATIONAL FORMULA BETWEEN LENGTH OF THE PROPELLERS , WIDTH OF THE PROPELLERS , RPM (rotation per minute) AND THE THRUST PRODUCED . ANY OTHER DETAIL ABOUT QUAD COPTER ( or any other flying vehicles ) CAN ALSO BE STATED. THANK YOU!!!!!!!!
Question by RAGHUL NM | last reply
Question by wizzywoo | last reply
For a while i've been studying, designing, and building hang gliders. To my great disapointment however, none of them have even glided. I am starting to think there are more things to consider than just center of gravity, balance, and the over all "lightness" of the craft. Are there more things i should consider? I have also pondered upon the idea to make a Ultralight Helicopter, or somthing along those lines. What are some things i need to consider beond what i've already mentioned?
Question by aar0nc0le | last reply
I am making a wind tunnel from a fan, some cardboard, duct tape, cups and K'nex to help me design flying machines. How can i make something for measuring lift on a wing about 4 inches long? Also, would it be best to test lift and stability with low, medium or high winds.
Question by aar0nc0le | last reply
I'm finding a sensor for my project, which is going to fly the helium balloon and collect pressure/temperature/humidity data from around altitude of 10km. is there any good wireless communication device for my project?
Question by LeeS182 | last reply
Hi all, Weird one but as part of our Christmas party we want to have a range of competitive games and challenges which we can take part in as groups. The idea here is that we want the finale to be building and flying "something" which can carry a Santa as far as possible and whoever's get's the further wins... I have never bought, made or played with any toy planes, drones, anything that flies etc so I wondered if there was a basic list of items we'd need to put these together? I should imagine we don't want them to take more than a few hours to make in total, and they should be powered by a motor and remote control? Any assistance you can offer would be greatly appreciated. Thanks, Kate
Question by Kate_89 | last reply
Question by WerdnaN | last reply
Please could some one tell me a detailed instructible to make a homemade radiocontrolled small helicopter which could fly in home,without using a market kit ,also the neccesary eletronic components to use?pleaseeeeeeeeeeeeeeeeeee
Question by themike0011 | last reply
Question by RcMaKeR | last reply
I'm looking for hard data on the relationship between typical airspeed / stall speed, glide angle, and wing loading of large gliding/flying mammals like the colugo, japanese giant flying squirrel, and flying foxes. At first glance, Google turns up these facts with minimal digging. The catch is that the data are provided for different individuals, which is almost useless for my purposes. Could someone point me toward a source that has all three pieces of information for the same individual, and preferably lists them for several individuals? Better still, is there an existing paper comparing the relationship between these numbers across unrelated species?
Question by passersby | last reply
It was a 2d graphic sidescroller. It started out with you flying in an escape pod in some city. With other hover vehicles flying around you. You could press a button and you would exit the escape pod as a blue orb and you could take control of another vehicle? I known its not many details but I hope someone can help me.
Question by Brooksthebrook | last reply