Tiny 3.5 cc NITRO ENGINE on a BICYCLE

This video was brought to you by brilliant. This is a

nitro

engine

that runs on an exotic fuel called nro methane that is used in Drag Racing. No methane is actually less energetic than gasoline, but it comes with its own oxygen, which means you need less air to burn it, which also means you can burn a lot of it, making this little guy very powerful, It may not seem like it, but this is a 2.5 horsepower

engine

, if two horsepower means nothing to you, just know that a French car was sold until the 1990s. that was called croan 2 hp , which basically means cro and 2 horsepower, does that mean this little guy could power this car well?

Maybe probably not because this car doesn't actually have two regular horsepower, it has two French horsepower, which is nine regular horsepower. It is equivalent to a li, it is what it is with everything said. I think moving a car with this little guy might be a bit ambitious, yes I would probably move it but it would be very very slow, on the other hand most electric bikes work. 1.2 horsepower if I'm not mistaken and this little guy has double that, so even though my intuition is giving me red flags about what I'm about to say, if I put this on a bike, the bike should go fast, There's only one real way to know.

Sure I have a

nitro

engine and I have a bike that my grandfather left me so the next step is to just put the engine in the bike, in fact the next step is to get the engine running because despite all my talk, I really don't know how. this little guy operates I don't have an RC car that my grandpa didn't leave me and he left it to my cousin Tom AO damn tomato so I did some research and by research I mean I read the booklet that comes with the motor and apparently this It's a two stroke engine, which means that instead of sucking, squeezing, hitting, putting some of those steps together and in the end you only get two strokes, it also means that for every four strokes you also get more strokes, so you also get more power I think to start I need to fill the tank with Nitro fuel which apparently is only 15% nitro methane, the rest is methanol and oil.

More lies now I need to use this doohi wrench to turn on the glow plug and pull. the pull start I guess we'll try it, no, my arm, as my grandfather used to say, when the left gets tired, the right gets fired, let's get tired easily, that's too much. I think doing it by hand is too tiring. or maybe I'm just bad at it but I think I'm going to take the pool apart to begin with and start with a drill, yeah I'm lazy what do you expect? Then there is a Nexis with what appears to be a ball bearing. and a nut, I can work with this, okay, second round, now with a drill, let's try it, it was much easier.

I should have started with this. I mean, I'm too out of shape to do it by hand anyway, so I know the basics of the engine now I can at least get it to start, which isn't bad, but I still have a tough problem to solve. You see, the motor has 2.5 horsepower and a big part of that is because the motor can reach 30,000 rotations per minute, which is very similar to if I apply that speed directly to the

bicycle

tire. It would reach three times the speed of sound. Well, that's not really true because 30,000 RPM doesn't mean much if the motor isn't strong enough to move the bike. and my body post gossip on top and in fact it is not strong enough to move.

I should probably lose weight. The motor only has .9 Newton M of torque and as you can imagine by the decimal point, that's not much I need. What I have to do is reduce the motor because I'm trying to emulate an electric bike and an electric bike typically has around 50 Newton M of torque, which is basically 50 times more than what I have now. I need to reduce the motor 50 times in speed, so I get 50 times more torque, that's how mechanical power works. I think now if I use normal gears I will end up with a gear that is bigger than the bike tire and that is not good, the gear I have in mind is actually used for tuning guitars, it is the worm gear.

Helical gears use a screw like gear with a normal gear to create incredibly high ratios. As you can see, I already modeled one in 3D. I'm going to 3D print it and try it. see if that helps with the torque, I've never done it before so it should be fun, using a shoelace I put a 2.5kg weight on the worm wheel, let's see if I can lift the weight using just the tip of my fingers, yeah, it's pretty easy to pick up. the 2.5 kg with a worm wheel, um, but yes, you have a balance, so this gets stronger but it also gets very, very slow, let's see if the motor can lift the 2.5 kg.

I mean, the engine will go much faster at full throttle at idle and at full throttle at idle. Ok, Dokie, okay, so the setup is done. As you can see for the pulley, I'm using a 3D printed pulley. They are 3D printed in a special Formlabs resin called 10K rigid, which is very strong, so they shouldn't break. I'm going to try it and see if the motor is capable of lifting the witch, let's try it 3 two 1 my worm gear is producing a lot of torque maybe too much I think I exaggerated on the ratio of 1 to 100 it could be too much or maybe not enough I'm not sure, I really don't know what ratio I should use, maybe I should figure out the transmission on the bike tire first and then move on to the worm gear.

Yeah, that sounds like a good plan. Take off the tire I'm going to be honest with you. I haven't taken the bike apart in a while, so I don't really know what I'm doing. I'm going to do my best, okay? and now you should get off. no, oh Z, okay, now I need to 3D model a thug to put it here, yeah, let's go to the measurements ooh 33.1, you know, there was a time not too long ago when 3D printers with chips weren't that good. I would have to 3D print three times. getting a fit was a nightmare but now it's just amazing.

I mean, I 3D modeled the part I 3D printed and it's a fit, it works the first time. It's just a great, amazing accessory for my favorite 3D printers, the pru K4 and the Bamboo Labs X1 Carbon. Well, that seems to be working now. I need to place another pulley somewhere around here and to do that I'll need some support, so maybe an MDF panel here, another here. I do all the setup here and then another strap maybe here where. I'm going to put in the engine, yes that sounds good, but first I need to model it in 3D.

This is a one-way ball bearing. I'm putting it here so the bike can go faster than the engine without destroying it, you see. it can turn in this direction but not in this GRE direction because my grandfather used to say you can never over lubricate, that's why he ended up with 11 kids. Hello friend, as you have probably noticed, this worm wheel is much smaller than the other one, very perceptive of The reason for this is because I already put a pulley here and here, which reduced the speed a little. I don't really need a ratio of 1 to 100, so this is 1 to 32, which is enough.

I mean, I can move the bike. with my hand, which is amazing, yeah, that's cool, now all I have to do is put the engine in here and test it, yeah, we're in the home stretch. Come on, ok dokie, the bike is ready, so let's give it a try, fingers crossed. Look, it's moving, okay, but still, turning a freewheel might be easy, let me try to move the bike, yeah, well, it's not lacking in power, is it? Jesus, yes, yes, he's doing it, he's doing it, stop, please, stop, this is very scary. yeah, I guess it's working so I'm a pro at destroying things I 3D print in PLA and although that axle, um and by axle I mean the worm wheel screw hasn't been destroyed yet, I don't think it's a great idea for me to try the final with pla, so I think I'm going to overengineer this and look for something stronger.

Solid lubricants are a category of materials that are solid and self-lubricating. I know three of those graffiti. the first and is used on the tips of pencils because it is slippery. Teflon is used in non-stick pans, it doesn't stick because it is slippery and brass, which is what we use in the bushings, is somewhat slippery, eh, but it is also very resistant and visible. like gold, which is great. I'm thinking of using Teflon for the worm wheel and brass for the bushing. Now you might be thinking if the pla worked why would I take an extra step just to make sure nothing breaks right?

To be honest I have a fourth axis on my CNC machine I just received it and I really want to try it yes I really don't have a better excuse as you can see I already put the parts on the bike the Teflon wheel and the brass screw , all that's left What I have to do now is make my grandpa proud, let's go out, I'm going to get my jacket, okay, we're here in the countryside of Portugal ready to test my Nitro bike, will it work? I sure hope so, so I put a lot of hours into it.

This is very beautiful, it's the countryside of Portugal, lots of grass and a cobblestone path, which wasn't a great idea. I think I should try the bike on asphalt. Yes, this is creating too many potholes, if that's a word. I'm going to go test it on asphalt now and see how it works. It's not working badly, I just think it can work better. So it's asphalt, so we found something right there, which is quite an achievement on this side of Portugal because it's mainly cobblestone roads, yeah, I'm going to give it a try. I'm pretty sure I can reach a better top speed than before.

Come on, I was going too fast. I almost lost control of the bike. Let me see the top speed, ladies. and gentlemen, oh we have a new top speed, no it's still 28. I know I can do better than this because I'm not going full speed. I'm afraid the engine will shut down. Well, I think it's time to try it. Full Throttle you can see a lot of taplocks here, but it's fine and the gear is still intact. The engine does not handle Full Throttle very well. I think I need to do it more progressively. Well, let's go anyway.

Let me see a new record and no. I don't think I can do better than this. I'm going to be honest with you. I didn't expect that bike to reach 30 km per hour. This project was very fun. I think the most important thing about this project is the fact that gears are very important for power production, so the more you know about gears, the better the project will work in the end. To be honest my knowledge of Gears was a bit rusty so I took a brilliant course to refresh my memory but even if I don't I don't know anything about gears or other subjects like goons, maths, eating, flow, flow, flow and many others.

Brilliant is the best way to learn a new subject. I think the best example of this is math because Brilliant is just amazing at making math more interactive and visual. Brilliant helps you master big concepts in just 15 minutes a day, Learn anywhere, anytime on your phone, tablet or even computer, To try everything Shiny has to offer free for a full 30 days, visit Shiny. org inexa or click the link in the description. The first 200 of you will get a brilliant 20% annual premium subscription by clicking the link in the description, not only will you get smarter but you will also help this channel and to that I have to say I want to be a baby cowboy and remember Tomatoes are disgusting, see you.