how to build a small internal combustion engine from hardware store materials?

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you can buy a combustion engine (here is the link:

and you can watch makerj101's videos :

1 2 3 4 5 and 6 the test

Makerj1011 year ago

Yes, you can make a working internal combustion engine with stuff bought mostly from hardware store and without a machine shop. I built one. Here's my video if it running. I have a whole series showing how I made it.

DalK6 years ago
Had a long rant here but deleted it, basically don't listen to the people telling you you can't do it. Yes it will be dangerous, but if you didn't already know that anything to do with engines is dangerous then you're probably gonna die a pretty meaningless death anyway, might as well leave a funny youtube video to mark it :D

However assuming you're not a helpless man-child whose interests are drinking government kool-aid, frivolous lawsuits, and complaining about how you didn't get a fair shot, yes you can feel free to experiment with whatever you want to. It's a free country, no matter how many laws they write saying it isn't :D The only one that matters is the bit of paper that started it all and the ammendments that extended the rights to the groups they left out then so they could trick the bigots and the tards into working for us instead of the brits. Don't do dangerous shit in the city, preferably do it below ground or inside a concrete blister on your own land unless your neighbors are over the horizon, but other than that yeah, by all means learn and take back what you can of the industrial infrastructure (and not by expecting someone to give you theirs but by making more). Don't buy into the whole joke about needing some sort of degree or another to do it - you need knowledge not pieces of paper, and you can get that a hell of a lot quicker and more efficiently between textbooks the internet and knowledgeable friends than you ever will in any college. Don't buy the thing about not being 'intelligent' enough either - we've been evolving for a couple billion years, one didn't jump ahead of the other in the past couple thousand since we developed complex long-lived societies and started calling ourselves the smartest thing on the planet (more likely just the ones that happened to develop intelligence and good tool manipulators before they went extinct; we seem to evaluate sapience wholly based upon communication faculties and yet call ourselves the only sapient species when even the average dog can respond correctly to more human queries than ceasar freaking milan can to the dogs; thank god the dolphins had fins instead of hands and you can't start fire underwater or they'd probably be coming up on land in water filled hamster balls for human hunts).

The truth of the matter is, if you enjoy it enough to stick at it then chances are you could be just as good as anyone else, with the same accumulation of information / synaptic connections. In the end all any of us really do is pattern matching, fitting pegs to the right hole, its the willpower to continue trying and the honesty to stick to a field you enjoy rather than the one that people tell you is best for you that separates the geniuses at MIT from the alcoholic bums (probably more the second than the first too, we're all pretty much insane magical fonts of willpower when we want to be, and we can make decisions in a moment which last and are reinforced over years or decades) in the gutter.

Personally, on subject, the engines are only secondary to my interest in robotics and I've only dipped my toes into the subject, but for a while I've been really interested into finding out more about inkjets on printers. We throw them away left and right, but they're basically the most expensive part on the thing other than maybe one or two bits of the printer's electronics, they're made by the same MEC processes as the ICs for that matter, and they seem like more or less ideal platforms for fuel injection. The hard part isn't the cylinder or the piston - hate to break people's bubbles, but things we could do in the year 1900 tend to be relatively simple to do with hand tools nowadays, and even small engines didn't require nanometer precision last time I checked, it's just a matter of whether or not you have the time and the patience to do a think without the tools. Unless you're spending hundreds of millions you're not liable to find a cnc machine that can actually produce higher precision than a manual miller or lathe or anything else :D

If you have any success certainly post an instructable. I already see quite a few things on this site that are infinitely more complicated tech than engines (lasers for instance) whose parts are much harder and more expensive to get hold of, and yet almost nothing on this subject. As awesome as instructables is, it still seems quite a bit to be infected with the same malaise as the rest of society, the chase for the same poisonous false safeties and assurances; not so much ofc, or there wouldn't be people explaining to you so many processes which we think are complicated but are in fact just dangerous and probably illegal. Mebbe its fear of lawsuits, I dunno... heh, personally I could almost use a good greedy turd trying to sue me and wreck society a little more so he could get his meal ticket, I've always liked the idea of hunting but haven't done it so much except when I needed meat, there's just not enough challenge in animals that don't have opposable thumbs and precisely controlled fingers and can't even pick up a knife much less a rifle. Something that could and was demonstrably evil and uncaring to boot... whoo-boy, it'd be like a feel good hollywood movie :D
sarveshk6 years ago
Better you buy one... small IC engine has very complicated design and assembly contains many safety issues. You can get a new IC engine for less than $200.
NikonDork8 years ago
You could buy a small nitromethane combustion engine that would be suitably sized from a RC Hobbies supplier.
NikonDork8 years ago
Ouch, thats a pretty tall order there. Combustion engines have very strict tolerances and balances. I dunno if you could get off the shelf items from a hardware store and cobble something like this together. Not without some degree of machining.