I want to construct a motor drive to run a cycle . i have arduino and hbridge with but i require a circuit diagram to connect and control it?.i wat to know the working , connecting and controlling conceots of it
Asked by Aniesh T M 6 years ago
I want to make a magnetic levitated suspension. I am not sure it will work as I expected. But I need em' ...... Somebody please tell me where I can find em' I don't wanna spend so much for those mags neither do I want to damage costly things to take those mags outta them.... I thought of using electro magnetism....but i am still learning more about it and that procedure is damn expensive Please help
Asked by SravanamE 2 years ago
Make a stationary exercise cycle with fine control on resistance to rotation
Asked by anil.gadgil 8 years ago
Hi all, I am always amazed at the ingenuity here and after many years of being fascinated I would like to ask my first question. I'm thinking of getting or converting/building an electric cycle. I've been told by local dealers that none except the very expensive have a recharge facility for sat when you go downhill or are freewheeling, That seems a waste to me so I am thinking ... why not buy a used wheel with a hub motor and fit it at the front wheel and that raises the following questions in my mind ... Can hub motors be used in reverse as generators? Would the output be speed (rpm) dependent and if so then if said cycle has say a 36 volt system would it only charge the battery if the 'generator' is producing 36v or close to? If so would it be better to find perhaps a 24v hub motor to use as a generator and charge the battery via a variable input, 36v output step-up? I appreciate it will be less than 100% efficient when both using electric at the motor and charging at the 'generator' but would anyone have any idea how inefficient? I'm fit enough to cycle on the flat but would appreciate help on the hills!! I assume I will need a diode or similar ... does anyone know where I can find a suitable circuit diagram Lots of questions I know ... sorry. David
Asked by HRobinson 2 years ago
Have a school presentation on a thermodynamic process and would like to present a Rankine Cycle but i havent been able to find one that i can build and run within a classroom just looking for a design or directions, even a video that i can use to build one
Asked by SLC Student 6 years ago
It Is a solar powered vehicle. I would like to know the exact specifications of the motor which i can use it to run a cycle with a net load of 50kgs.
Asked by pramodh kiranv 3 years ago
Hi! i need and automatic potentiometer it has to works max 5v i thouhgt about that and i can make it manually but it's to big and to weird i want to ask you a form to make it whit electronic components or a component ho can makes it i want to make a motor acelerates and desacelerates whith a soft curve and if its posible put the time of the cycle (example 40 seconds acelerat.... and .. desaceler...."cycle" or similar) Thanks Sorry for my bad english! Thanks!
Posted by labalavermella 6 years ago
Hello all! I have 2x 12v actuators with 2 wires. I need to have both of them (at the same time) extend all the way and stay for 30 minutes and then retract completely for 30 minutes and cycle like this. What would be the simplest way for me to go about this? Cheers!
Posted by sandman420 8 years ago
I have one of the above trailers, the ball hitch should be secured to the cycle saddle clamp, however I am unable to re sucure the clamp tight enough to stop the saddle rotating and the saddle dropping down. I have seen a clamp which secures to the actual seat post and the ball hitch is secured to that, i am unable to locate such a clamp, I am sure someone will know or can help me find this item. I am having to use my trailer as a hand cart at present for going to the allotment each day. Please help if you can. Thank you Joanna
What is the cheapest way to make a bicycle kart? see me and my mom are very poor "kinda" the money is tight here and i would like to make something cool like this but heres what i have to make one this is ALL i have i dont have anything else meaning this is all the parts and tools i have 1 ten speed mountain bike,1 weed eater "working",2 planks of wood "the legenth of my arm,1 pair of screwdrivers.gasoline "for the engine to run",1 spare bicycle tire,1 spare and rusty bicycle chain,wire plyers,1 hammer,i only have 10 dollars and no im not allowed to get a soldering iron/gun so if theres anything that you know of on how to make this please let me know.
Asked by wizard744 8 years ago
Hello all, I'd like to know how efficient my fridge is. To do this, I need to have a record of the on/off cycling that the fridge does: I need to know how frequently it cycles and how long it stays on for. Does anyone know if this gizmo exists? (in the UK) If not, how would I go about making one? Thanks, mm
Posted by marquee.moon 6 years ago
If money was no object, what motorcycle(s) would you want to own? For me it would have to be a Vincent Rapide, or a Brough Superior. Also, I'd like to own some historic bikes, like ones that belonged to : Pancho Villa, Evel Knievel, Lawrence of Arabia, Elvis, Bob Dylan, Steve McQueen, or maybe Peter Fonda's Captain America.
Posted by skunkbait 10 years ago
Im trying to find a relatively inexpensive way to run my laptop off of something that will fit in my backpack and will be something that i can carry. so far i found out that i need a deep cycle or marine battery for my inverter, and an enclosure to make sure i dont get sulfuric acid everywhere, but all of the research ive found were about home backup systems which are stationary. would putting a lead acid battery in a backpack and carrying it around damage it or make it leak? i also found a lot of lithium ion batteries on amazon around 700 to 1600 mah for $.50 - $1... the sellers that sell them for that much have good ratings, is there something wrong with these, or did i hit a goldmine? example: http://www.amazon.com/Olympus-LI-30B-Rechargeable-Battery-Digital/dp/B00062WV6I/ref=sr_1_20?ie=UTF8&s=electronics&qid=1273381311&sr=1-20 if lead acid doesn't work (or the lithium ion), would 10 nimh d batteries work?
Asked by the judge 8 years ago
I'm a wheelchair user and I would like to change the side wheels and rims with a bike geared wheel and push handles. I need someone, brighter than me, to work out how to combine the crankshaft and back wheel into one unit? If this could be done, I would extend the pedal shaft to become handles which I could push with my arms. Don't know if that is clear.. I've tried to add an image here, but Instuctables just not uploading anything!!! If you have any idea about the wheel idea, I would be grateful to hear? Many thanks Richard
Posted by DickyMac 3 years ago
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 9 years ago
Im after a British Standard Cycle Die (9.35mm diameter, 26TPI) to thread a steel stub axel so it will fit inside a bike hub like a spindle (with cones from an old spindle) if anyone knows where i can find one of these please get in touch! :D PS i live in the UK
Asked by ooda55 7 years ago
Hello, I've been breaking my head on this for a while now, and still couldn't find a correct solution for this. I want to be able to adjust the duty cycle (pulse width) with one potentiometer, and the frequency with another potentiometer, using a 555 timer. Adjusting the frequency shouldn't change the duty cycle! (which is the problem in All of the circuits I find online). This is an example of a circuit I find online, many of the circuits look just like this one (see picture) Now, the problem is that when you increase the resistance of the potentiometer for adjusting the frequency, that makes sure you can never get 0% or 100% duty cycle anymore! or not even close to that. It's because increasing that resistance, also decreases the 'discharging current' of the capacitor, so it will also increase the discharging time when that's not wanted. Without R2 it works perfectly, from 0% to 100% duty-cycle; but with the frequency potentiometer it all gets messed up. It's a little difficult to explain, I'll try it with another example :) To get 0% duty-cycle (or something close to that, like 10%), you'll need to make sure the path for Discharging the capacitor goes near 0Ohm. Increasing the potentiometer for the frequency makes that impossible because it's in series with the capacitor's charging and discharging circuit. So that would also increase the discharging time while I don't want that. When the resistance of the frequency potentiometer increases, the duty-cycle gets variable between just something like 45% and 55% (example) so that's not good. Is there any way do do this? :/ Thanks in advance, Elecotrials
Asked by DELETED_Electorials 6 years ago
Hey all, I'm trying to power some 3528 LED strands to hang from a shade structure I have outside. I picked up a 115 Ah 12v deep cycle marine battery, but I just wanted to make sure I could wire them directly to a distribution block without blowing anything up. The strands draw 6A of current so I was going to find the closest fuse to that value (10A?) to prevent any chance of overpowering the control boxes. Does this seem correct? Image shows roughly what I'm trying to do (black boxes around red wire are fuses, 1-3 are the LED control modules) Greatly appreciate any help!
Posted by synaptech 4 years ago
Hi, I have a dog at home who uses a litter tray. It's basically a large plastic water run off tray with some AstroTurf. Currently, I have a pump that draws off liquids and deposits them into an empty soda bottle, which I flush down the toilet. But I was wondering if there is an easy way to convert the urine into nitrates which I could use in an aquaponics, or peeponics, system? Possibly using an attractive under water garden in a 25 gallon fish tank?
Posted by jmlidea 6 years ago
I've been wanting to teach myself more about mechanics, and I want to work on a rebuild project. There are problems though: my workshop is small, I don't have a shop-crane, and there's not a lot of money to put into it. I was wondering If there are any motors that are just like that of a car's that are small, cheap, and readily available. I've taken apart a few two- and four- stroke engines, nothing more than a lawnmower. I want to self-educate myself more. Thanks.
Asked by DIY Emilio 6 years ago
By cushion I mean like a gel bag or something. See this video to give you an idea of what I'm talking about. It appears that this clip was shot by the mounted camera which can be seen, but it actually was shot by holding the camera on a monopod in one hand as I rode. The mounted footage was way to jittery. The mount that is there on the crossbar needs to be cushioned somehow to at least make it as good as what you see, but not some big Steadycam contraption. The obvious answer is a good POV cam but the good HD ones are serious money. I appreciate any head scratching on this one.http://www.e-webvid.com/65TVBlueBoy_500k.html
Asked by dayjack119 9 years ago
Uh this is annoying after last year when there were attacks on cyclists made by motorists I've been thinking it better not happen again this year, well my fears turn out to be well founded, just as our bike month kicks off so does the war on cyclists...Coming down the hill towards work, going well over the posted speed limit of 30mph a boy racer in a vauxhall corsa boxed me in and tried to run me in to parked cars, i managed to get in front of him and out from behind the parked cars, he then went on the wrong side of the road and overtook me, only to try and brake check me, I was absolutely incensed he was looking me right in the eye through the rear view mirror, He got away at the junction at the bottom of the hill because the light was green and he was going straight on, I was going to take out his wingmirror but nay he didn't stop, next time I see the car I'll get his liscence plate numbers, then report his car as stolen... because he'd get off scott free for attacking me like that, despite having endangered my life and broken the speed limit by a lot more than I did...
Posted by killerjackalope 10 years ago
I wonder if it is safe to use the fuel prepared with the 2 cycle engine oil in a 4 cycle engine lawnmower.
Asked by blkhawk 8 years ago
I intend to make my cycle a stationary one so that I might exercise at home. With that, I hope to create electricity as well (someday sell electricity too hopefully :D ) Of course I do not have much - and I need help to create the same without buying a thing preferably. Help please. Also suggest how I could store the same, just in case I successfully make some.
Asked by Iyer2711 9 years ago
I heard an interview today with author William Least Heat-Moon. In his latest book, he meets a man who has built an outrigger bicycle he calls a "Railcycle", which he uses to ride on disused railroad tracks all over the world. Curious, I did some searching, and found a number of places on the web where people are talking about this, but they all seem outdated. Bentley Railbikes Railbike Tours Homebuilt Railbike Has anyone else heard of this practice? Do you know of anyone currently making and riding such contraptions? Do you have one of your own?
Posted by yoyology 8 years ago
I want to find out any other ways of colouring plastic besides sharpies. I want to use heat for shaping and I find sharpies don't provide a consistant covering for my needs. Please list any you know of for me to try. Looking foreward for your replies.
Asked by craftyv 7 years ago
I ride a 2000 MGX DxR [yes, the crappy, chinese, walmart version] to work every day, road commuting. I also ride it off-road, singletrack, streams, washboards, you-name-it-I've-ridden-it, with no issues. thus far, I have put around 19,000 miles on it, all told. totally original [otherthan tubes, tires, chain, cassette, brakes, etc] parts, still weighs 38 pounds. Anybody else ride something as cheap and inappropriate as commuter? What do you ride every day? any bikes you'd LOVE to have? Any funny bike stories? Cheers, B.E. 'Brick' Montgomery
Posted by Hazzard2theworld911 5 years ago
Hey everybody, I need your help on building a single battery out of several smaller batteries for a sound system in a particular environment that forbids the use of a fuel-powered generator and where electrical networks to plug into are absent. For now I'm just researching various portable batteries and think deep cycle ones are probably most adapted to the needs of a sound system running for 8-12 hours, but the only working example I've heard of so far is made up of several motorcycle batteries. I'm really starting from scratch and reviewing all my old electronics classes which I've never so far had to put into use, so bear with me :) I'm really keen on learning. As an indication, the sound system will be small with two high/mid built-in amplifier speakers and a woofer. Probably will need to run a few lights/lasers, that sort of thing as well, but that'll be a bonus. Thanks in advance
Posted by Objektiv 9 months ago
I want to increase my cycles speed using gears.what i had to do for that?
How powerful does a motor cycle motor have to be to pick up a man on a helecopter chair?
Asked by dasdew2 9 years ago
So, I have this program that I got online that simulates a 555-timer. Basically, if you want it to put out X Hz in Astable mode, it'll tell you which capacitors to use and stuff. It'll also show you how you can modify the duty cycle. I'm wondering if anyone can explain something to me: When I run the program in astable mode, the duty cycle must be above 50%. I want to power an LED that flashes very briefly, but has a relatively large interval of being off until if flashes again. Something more along the lines of a duty cycle of maybe 5%-20%. First, could you explain why the program constrains the value like this? Is it because the 555 can't run at a duty cycle that isn't greater than 50%? If that is the case, why can't it? Second, if I can't run it like that, what would you propose I do to power the LED in the manner I described? btw, if you want the program follow this link: http://clarkson-uk.com/555-timer/ It's actually a pretty cool program! :D
Asked by tylervitale 6 years ago
I am trying to decide what battery to get for my 2 solar panels 45 watts in total i have gathered that i need a deep cycle i need it to charge up 5 days and use it on the week end. any advice and help would be highly appropriated http://cgi.ebay.co.uk/12V-85AH-QUALITY-LEISURE-BATTERY-NEW-4-YR-GTEE-/180687142468?_trksid=p5197.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D2%26po%3DLVI%26ps%3D63%26clkid%3D971368555902802126#ht_1304wt_1139
Asked by Daniel Deacon 7 years ago
Hi i am wondering how to go about building a solar charge regulator i need some help and passably schematics i have 2 broken charge controllers the parts i have salvaged 11A20YR, LM324. IC x2 11YRD g4, CD40106BM. X2 IC IRF3205, MT 1D4H. X6 MOS-FET ALJ, D882, P63. X2 TRANSISTOR X16, GF1200, YELLOW THING X2 C1115, JC817,KENTC, X2 few other parts that are on the board
Asked by Daniel Deacon 7 years ago