If you get back to the gas engine, I recommend watching makerj101, he built a 2 stroke combustion engine without a machine shop from scratch. You made the first air engine I’ve seen that was air tight besides Tom Stanton’s diaphragm engine, which isn’t the same as a real one.
I'm just making the gas engine a background project for now, I want to focus on other projects that don't take me 2 months to make but when I do make a new breakthrough on the gas engine I will make a video. I'll have a look at these videos and see what I can learn!
You may also consider having exhaust valves instead of a vent at the bottom, when I made air engines, I found it works better, as when the cylinder is traveling up it won’t have to be fighting compression
great video as always, really liked the camera work on this one. and of course, great work with the engine, i love seeing the camshaft and valves move as it spins
Awesome project mate! I've tried many times with making 3d printed solenoid and air engines like you with mixed success. this makes me really want to go back and try again. thanks!
Thank you! I wonder if you could take my files I provided in the description and replace the pistons and cylinder bank with rods and electromagnets and make a solenoid four cylinder that way
Finally, somebody on CZcams is actually *scuffing the mating surface* before applying JB Weld... or any type of epoxy. Anytime I see somebody apply paint, glue, or adhesive to a flat surface, it's onto the next video. *Thank you for your hard work* lol
One Russian dude made a electronically driven valve system for his Miata (inspired by the same thing in a Koenigsegg Gemera). I'm pretty sure you are going to look into it once engine is finished.
If I had to guess, the engine having to compress any air that is in the cylinders when the piston is travelling up is significantly restricting the maximum rpm of your engine. This is especially true since the engine's compression is so good. Having lower compression while giving it less torque may allow it to achieve a higher rpm. I would recommend adding an exhaust valve and trying again. It shouldn't be as hard to get an exhaust valve to seal, as there is no air behind the valve, and any air entering the cylinder will just be putting pressure on the valve seating it even further into its position.
I’m sorry to say but the model a engine you showed is a flathead, meaning it has no pushrods, it works by having the valves in the block parallel to the cylinders with the valves riding directly on the lifters, eliminating the need for rocker arms and pushrods, this also means the head is mostly just sealing off the combustion chamber, hence the name flathead. Great video as always, keep it coming👍
Amazing work man! I took a break over holidays, but Im still working on my air engine! I totally get what you mean with "humans are irrational beings." I'm making a pushrod/poppet valve design when a ball valve would be much more efficient, for no reason other than it's cooler! Great build!
11:36 Reasons why someone would want stick shift over automatic is that if you know how to use it, the trans will last way longer. (Especially for towing. 7.3 Powerstrokes with stick are indestructible) and because in certain circumstances (most of the time) it's more fun.
Actually it COULD be possible if I do use a sleeve and o rings. The original 2 stroke design I made last year had a decent foundation but no compression so it never ran, I bet now I could go back and make a somewhat functional prototype
@@CamdenBowen i hope you can but i just wanna ask (what printer do you have) and do you preform maintenance like tightening belts and screws cuz my ender 3 max does the cleanest surfaces when you level the bed properly and tighten the frame a little
@Dies Roelofs I have a creality cr10s4, and as far as I'm concerned, it's pretty well just a bigger ender 3. I rarely do that type of maintenence beyond just lubrication of some parts and I've had it for over 4 years now with very few issues
@@CamdenBowen hm yeah mines on the bigger side too but i upgraded to a mirror and it prints like heaven it can print milimeter thick rods like 20 cm up with no stringing or layer woble at all no settings where changed just a load of maintenance
maybe to get rid of some leaks and tolerance issues regarding the valves you could use good old ball valves, i mean bbs, springs and o-rings, just because the valve may actually slip off the rod even if you melted that in place
I was kinda hoping that you might choose to experiment with this engine to determine how much work it can do. I believe that the industry-standard CZcams test for a 3D printed compressed air engine is to ask it to lift a banana from the ground to desk height. This test can be traced back through CZcams history, via Integza, to the CZcams air engine pioneer Tom Stanton.
Just from hearing the engine it looks like you either need higher valve lift, or a taller cam lift. less lift means it can run at lower pressures, with the tradeoff of low rpm, and a high lift/duration camshaft providing higher rpm with higher pressure
Thank you so much! I just added the flies to the description after forgetting to lol. If you are interested, I have set up a Patreon if you'd like to support!
you shuld replace the crank to be rotated every 90 degreas so u get a even fiering tho the balance will be worse but it dosent matter in ure application
12:12 than again it's easy to add all the quality of life things to a old car. And you decided to drive a giant hunk of metal on a narrow path with other giant chunks of metal at high speed so "safe" might as well not be a factor as long as you can handle your own vehicle.
That's just the compressor, not the engine. One of the high pressure lines started leaking on the compressor somewhere last year and I haven't been arsed to fix it
Awesome build!. Another reason why it may not rev high is because it has a very heavy flywheel which will allow it to idle at much lower speeds, but won’t be able to reach as high of RPM’s. Awesome engine though, I look forward to future videos!
Thank you! Any smaller of a flywheel and the engine may not have ran so well lol, the valves with all that pressure. A lighter flywheel would make it much peppier though if it weren't due to the valves
Hey! Building my own engine with cylinder sleeves now. I've gotten two different engines running well now, but I have yet to post anything on them. What did you use to cut the exhaust ports? Just would like to know the best method before wasting more copper pipe. Also, how much messing with o-ring tolerances did you need to do to get a good seal, without making too much friction? Thanks! Looking forward to your next vid!
Thank you! I used a Dremel and a cutting wheel to cut the rough shape, then used a small hand file to shape it correctly and then sandpaper to deburr the inside of the bore after. As for the O ring tolerances, it really doesn't matter that much as long as you use oil/grease. If its within a certain ballpark where it is still making a good seal but not hugely oversized, it should work fine with minimal friction
@@CamdenBowen absolutely! Ohhh, cool! One last thing, how would you suggest cutting the ports without a dremel? I do have the tubing cutter tool that I thought about using, and a fine tooth hand saw. Hope you have a good day/night!
@Hayden I would use the hand saw to create a couple small cuts side by side to make a somewhat grill pattern, then using a screwdriver bend and break the grills off to expose a large port. As long as the inner bore is clear you may not need a file!
Automatic cars are unpredictable and can be very dangerous in certain aplications or in low traction conditions. Nothing better than some random up/downshift mid corner. Of cource if you are using automatic like an cvt like they are supposed to be then its just better.
Why don't you put the firing intervall at 90°? So he does shoot - 90° - shoot - 90° - shoot - 90° and so on and so for. This needs to be a 2 strokes to work though.
I wanted the design to be faithful to the reference design of a 4 cylinder combustion engine, where the interval is 180 degrees meaning it must have a flat plane crank and a four stroke pattern
im no expert but wouldnt that technically be kinda a 3 stroke??? cuz you got your compression, intake, then exhaust, and it repeats from there cuz your intake overlaps with your exhaust coz of the 2 stroke styled vent thingy at the bottom... idk i may just be confusing myself
@@CamdenBowen 🤣 that makes it so much better. I thought it was a comparison between the frustration of the design process and the game 😅 as accurate as that is
@@CamdenBowen I think one way to make it rev higher is to make it overhead cam idk if it would work on a air engine tho so you don’t have do it if you don’t want too
@@ahmehleester7343 I'd like to try an OHC, I would just need to figure out a way to do it that makes sense. I could do it the way I did on my 3 cylinder air engine or I could devise another way maybe
@@CamdenBowen one more thing the four cylinder air engine compression sound like it may have a better chance of running when turn to gas power and its power stroke every 90 degrees instead a 180 degrees til power stroke I’m not expert so it may be very very inaccurate so only do it when you make the first engine work
I think maybe it would have been better to stick with a 3D printed pushrod. I think the metal rods added too much mass to the rotating assembly and robbed all the power you needed to actually rev the thing.
@@CamdenBowen link thé two compressors into tank and assistant power by buciyle pump make thé tank Big as u Can it will take while to fill up and it will take forever to bé emptyed if there IS no leak
Odd-cylinder engines have a nice distinct sound too them, such as Audi's straight 5 and Suzuki's 3 cylinder. I have made a 3 cylinder already but would like to try more!
It's more of a background project for me, I don't have the time to prioritize it so I just get to it when I do. Once I make significant progress I will update on it but for now, I'd like to try something new
Using ICE 1:2 camshaft ratio in air engine is nonsense. Use 1:1 - making work per each revolution. And please, use flathead design - valves should be opened in the opposite to the air pressure direction for not to be opened with air pressure.
hey sorry im putting this comment on this video but i remembered on your gas powered engine why dont you use something like hydrogen gas im sure you already thought of it by now but just fruit for thought i figured its not as dangerous as using straIGHT GAS
It was an option, but it requires plenty of setup to make possible. It would be easier to try and opt for an existing fuel source instead of try to create apparatus to produce it
Dont hate on Arbys, thats like top tier fast food, in the market of trash fast food lol Curly fries and sliders are hitters, but I cant digest those breads. Wait, "breads" in quotes because its just Soy and chewing gum essenitally.
If you get back to the gas engine, I recommend watching makerj101, he built a 2 stroke combustion engine without a machine shop from scratch. You made the first air engine I’ve seen that was air tight besides Tom Stanton’s diaphragm engine, which isn’t the same as a real one.
I'm just making the gas engine a background project for now, I want to focus on other projects that don't take me 2 months to make but when I do make a new breakthrough on the gas engine I will make a video. I'll have a look at these videos and see what I can learn!
I am working on an air tight engine and I can tell it's pretty hard challenge.
Pretty sure thats one of the oldest/most orginial youtube channels. Its right up there with Codys lab.
Lost PLA casting, you only need a furnace.
@@NoBaconForYouand then machines and tools to finess rough casts😅
This man is single handedly keeping the JB Weld industry alive.
You may also consider having exhaust valves instead of a vent at the bottom, when I made air engines, I found it works better, as when the cylinder is traveling up it won’t have to be fighting compression
I want to make a few more engines like this but with the exhaust valves as well, I'm sure they'll help with the sound
@@CamdenBowen I would recommend a slider valve. Lego vacuum engines use them and they work amazingly
@@the_icon_of_sin_94 I am really interested in how these lego engines work, maybe it could be the subject of a future video!
@@the_icon_of_sin_94 That's actualy how I learned to make air engines! Didn't know so many people made lego air engines
great video as always, really liked the camera work on this one.
and of course, great work with the engine, i love seeing the camshaft and valves move as it spins
Thank you! I am still learning how to use my new camera and its lenses but I'm glad it worked out well!
Awesome project mate! I've tried many times with making 3d printed solenoid and air engines like you with mixed success. this makes me really want to go back and try again. thanks!
Thank you! I wonder if you could take my files I provided in the description and replace the pistons and cylinder bank with rods and electromagnets and make a solenoid four cylinder that way
It does have a pleasing sound. Not the same as the petrol burner but still has that gentle but solid chug.
the compression makes it sound like a lawnmower trying to start
Finally, somebody on CZcams is actually *scuffing the mating surface* before applying JB Weld... or any type of epoxy.
Anytime I see somebody apply paint, glue, or adhesive to a flat surface, it's onto the next video.
*Thank you for your hard work* lol
An air flat 6 would be awesome
Homie went with the flat crank💪
Also, i guess this is a call to fix my 2jz engine!
It wouldn't feel right without the flat-plane crank lol, Maybe there is an ace you can keep from my design that you could use in yours!
love this guy always great content
One Russian dude made a electronically driven valve system for his Miata (inspired by the same thing in a Koenigsegg Gemera). I'm pretty sure you are going to look into it once engine is finished.
phenomenal video camden 👏
If I had to guess, the engine having to compress any air that is in the cylinders when the piston is travelling up is significantly restricting the maximum rpm of your engine. This is especially true since the engine's compression is so good. Having lower compression while giving it less torque may allow it to achieve a higher rpm. I would recommend adding an exhaust valve and trying again. It shouldn't be as hard to get an exhaust valve to seal, as there is no air behind the valve, and any air entering the cylinder will just be putting pressure on the valve seating it even further into its position.
I’m sorry to say but the model a engine you showed is a flathead, meaning it has no pushrods, it works by having the valves in the block parallel to the cylinders with the valves riding directly on the lifters, eliminating the need for rocker arms and pushrods, this also means the head is mostly just sealing off the combustion chamber, hence the name flathead. Great video as always, keep it coming👍
He sounds like Jamie off Mythbusters (clarification this is not a roast or anything I just made a connection in my brain lol love the channel)
No offense taken, Jamie is pretty cool after all!
Most common firing order is 1342 followed by 1243 with some ford engines.
Now make a pushrod V8 with a crossplane !
Amazing work man! I took a break over holidays, but Im still working on my air engine! I totally get what you mean with "humans are irrational beings." I'm making a pushrod/poppet valve design when a ball valve would be much more efficient, for no reason other than it's cooler! Great build!
Thank you! It's great to make things that satisfy certain itches rather than just for the sake of efficiency!
11:36 Reasons why someone would want stick shift over automatic is that if you know how to use it, the trans will last way longer. (Especially for towing. 7.3 Powerstrokes with stick are indestructible) and because in certain circumstances (most of the time) it's more fun.
2 stroke gas engine next? its gonna be fun (they said) maybe also fully 3d printed even without sleeves (2strokes dont need that much compression)
Actually it COULD be possible if I do use a sleeve and o rings. The original 2 stroke design I made last year had a decent foundation but no compression so it never ran, I bet now I could go back and make a somewhat functional prototype
@@CamdenBowen i hope you can but i just wanna ask (what printer do you have) and do you preform maintenance like tightening belts and screws cuz my ender 3 max does the cleanest surfaces when you level the bed properly and tighten the frame a little
@Dies Roelofs I have a creality cr10s4, and as far as I'm concerned, it's pretty well just a bigger ender 3. I rarely do that type of maintenence beyond just lubrication of some parts and I've had it for over 4 years now with very few issues
@@CamdenBowen hm yeah mines on the bigger side too but i upgraded to a mirror and it prints like heaven it can print milimeter thick rods like 20 cm up with no stringing or layer woble at all no settings where changed just a load of maintenance
I recommend using a tyre valve for intake.
Nice watch buddy
maybe to get rid of some leaks and tolerance issues regarding the valves you could use good old ball valves, i mean bbs, springs and o-rings, just because the valve may actually slip off the rod even if you melted that in place
I was kinda hoping that you might choose to experiment with this engine to determine how much work it can do.
I believe that the industry-standard CZcams test for a 3D printed compressed air engine is to ask it to lift a banana from the ground to desk height. This test can be traced back through CZcams history, via Integza, to the CZcams air engine pioneer Tom Stanton.
Just from hearing the engine it looks like you either need higher valve lift, or a taller cam lift. less lift means it can run at lower pressures, with the tradeoff of low rpm, and a high lift/duration camshaft providing higher rpm with higher pressure
It could be that but as well, fine tuning the cam timing to optimize it for high RPM can help as well as having a new inlet tube
What you said bout arbys was uncalled for🤣
Wet meat on dry bun
Valve lift might also be your flow limiter.
That's awesome
Ahh Pittsburgh tools, a man of culture
a beautiful precision machine. when will you be uploading the files. I would pay for them honestly
Thank you so much! I just added the flies to the description after forgetting to lol. If you are interested, I have set up a Patreon if you'd like to support!
@@CamdenBowen Thank you for your generosity. Once I get a credit card (which is soon), I will def subscribe!
dammn i litterly was going to make that from your files lol
Compressed air engines air basically 2 stroke engines that run off compressed air . You should've used a cross plane crank
I enjoyed this video alot more than I thought i would. Look forward to more! SUB'D!
Thank you! I got some pretty big plans!
subscribed!!!!!!!!!!!!
you shuld replace the crank to be rotated every 90 degreas so u get a even fiering tho the balance will be worse but it dosent matter in ure application
1:36 gigachad CSS player
12:12 than again it's easy to add all the quality of life things to a old car. And you decided to drive a giant hunk of metal on a narrow path with other giant chunks of metal at high speed so "safe" might as well not be a factor as long as you can handle your own vehicle.
That sound of leak (if it's not a leak) is a compressed air going at a high pressure somewhere
That's just the compressor, not the engine. One of the high pressure lines started leaking on the compressor somewhere last year and I haven't been arsed to fix it
I dont feel the blue tube is the issue it is the Schrader valve you have inline
Awesome build!. Another reason why it may not rev high is because it has a very heavy flywheel which will allow it to idle at much lower speeds, but won’t be able to reach as high of RPM’s. Awesome engine though, I look forward to future videos!
Thank you! Any smaller of a flywheel and the engine may not have ran so well lol, the valves with all that pressure. A lighter flywheel would make it much peppier though if it weren't due to the valves
A heavy flywheel slows down how quickly the engine speeds reaches it's maximum value, but it doesn't limit that value.
Can you help me with the stl of the piston?
4:09 - Oh, you don’t know what Karlson is? (Only true dani fans will know this)
Also please put this engine on an rc car and drive it that would be absolutely beautiful to see
increase your duration on your camshaft to rev higher
Hey! Building my own engine with cylinder sleeves now. I've gotten two different engines running well now, but I have yet to post anything on them. What did you use to cut the exhaust ports? Just would like to know the best method before wasting more copper pipe. Also, how much messing with o-ring tolerances did you need to do to get a good seal, without making too much friction? Thanks! Looking forward to your next vid!
Thank you! I used a Dremel and a cutting wheel to cut the rough shape, then used a small hand file to shape it correctly and then sandpaper to deburr the inside of the bore after. As for the O ring tolerances, it really doesn't matter that much as long as you use oil/grease. If its within a certain ballpark where it is still making a good seal but not hugely oversized, it should work fine with minimal friction
@@CamdenBowen absolutely! Ohhh, cool! One last thing, how would you suggest cutting the ports without a dremel? I do have the tubing cutter tool that I thought about using, and a fine tooth hand saw. Hope you have a good day/night!
@Hayden I would use the hand saw to create a couple small cuts side by side to make a somewhat grill pattern, then using a screwdriver bend and break the grills off to expose a large port. As long as the inner bore is clear you may not need a file!
@@CamdenBowen thanks man! :D
Automatic cars are unpredictable and can be very dangerous in certain aplications or in low traction conditions. Nothing better than some random up/downshift mid corner. Of cource if you are using automatic like an cvt like they are supposed to be then its just better.
Try making one out of paper.
It's a little bit harder but really fun.
ah yes 1,3,4,2 firing order and my bike has 1,2,4,3
if you made this crankshaft at the bottom, why dont just use flat head engine?
Reduce the size of the flywheel. That one is either too big and very unstable.
Why don't you put the firing intervall at 90°?
So he does shoot - 90° - shoot - 90° - shoot - 90° and so on and so for.
This needs to be a 2 strokes to work though.
I wanted the design to be faithful to the reference design of a 4 cylinder combustion engine, where the interval is 180 degrees meaning it must have a flat plane crank and a four stroke pattern
im no expert but wouldnt that technically be kinda a 3 stroke??? cuz you got your compression, intake, then exhaust, and it repeats from there cuz your intake overlaps with your exhaust coz of the 2 stroke styled vent thingy at the bottom... idk i may just be confusing myself
yessir
How the hell did he cut the exhaust ports
Did anyone else notice that some of the background music is the same music that's used in getting over it with Bennet foddy 🤣
I actually didn't know this, I took it from CZcams audio library ha
@@CamdenBowen 🤣 that makes it so much better. I thought it was a comparison between the frustration of the design process and the game 😅 as accurate as that is
Nice haircut 😎
Thank you! don't look too closely at my ears or the middle of my head for what may or may not be the impression from wearing headphones
I liked your hair and beard
It’s the next gas engine model idea
I need to have the single cylinder one running first though 😭
But there’s always power there per 180 degrees I think it was also I love your video
@@CamdenBowen I think one way to make it rev higher is to make it overhead cam idk if it would work on a air engine tho so you don’t have do it if you don’t want too
@@ahmehleester7343 I'd like to try an OHC, I would just need to figure out a way to do it that makes sense. I could do it the way I did on my 3 cylinder air engine or I could devise another way maybe
@@CamdenBowen one more thing the four cylinder air engine compression sound like it may have a better chance of running when turn to gas power and its power stroke every 90 degrees instead a 180 degrees til power stroke I’m not expert so it may be very very inaccurate so only do it when you make the first engine work
Make a cammed big block and put it in a 2nd gen camaro
i think it would be cool to convert it to gas powered
New years
Is it 4 cycles? Why? You dont have combustion so why do you waste energy in compression?
I think maybe it would have been better to stick with a 3D printed pushrod. I think the metal rods added too much mass to the rotating assembly and robbed all the power you needed to actually rev the thing.
Looks like there is a lot of wear and tear parts in it....
I will rather make a multi-piece crankshaft, like in a nitro engine. Check out assembly videos for them.
Run it till it fails
I wish I had a powerful enough air compressor, I'd love to max out its pressure and RPM to see when it comes apart
@@CamdenBowen link thé two compressors into tank and assistant power by buciyle pump make thé tank Big as u Can it will take while to fill up and it will take forever to bé emptyed if there IS no leak
If gear ratio is 1:1, will it work?
It could it would make it run as a 2 stroke rather than a 4 stroke as mine does, eliminating the waste compression stroke
@@CamdenBowen 😁. Make something to release that waste compression.
Could you do a 3 cylinder engine or a 5 cylinder 😎
Odd-cylinder engines have a nice distinct sound too them, such as Audi's straight 5 and Suzuki's 3 cylinder. I have made a 3 cylinder already but would like to try more!
@@CamdenBowen I have a suzuki g10 in my geo metro lol 45 hp little beast
Rotterdam 😮
Can we have the files bro?
nvm they're in description. You're awesome dude
@Justin MacDonald Thank you! I forgot to mention that I post them lol
@@CamdenBowen yeah makes sense😂 I wanted to built one I could compress
Da nissan was a beast😪
She was a performer
@CamdenBowen somehow the cvt never blew too💪
bro just learned neutral, advanced and retarded timing XD
In future can you please try normalise your volume please? eg your speaking was relatively quiet compared to most other cuts in the video.
what about a gas engine. FINISH IT!!!!!!
No shit, he started that about February 2022 I can’t wait to see it finished.
It's more of a background project for me, I don't have the time to prioritize it so I just get to it when I do. Once I make significant progress I will update on it but for now, I'd like to try something new
Using ICE 1:2 camshaft ratio in air engine is nonsense. Use 1:1 - making work per each revolution. And please, use flathead design - valves should be opened in the opposite to the air pressure direction for not to be opened with air pressure.
hey sorry im putting this comment on this video but i remembered on your gas powered engine why dont you use something like hydrogen gas im sure you already thought of it by now but just fruit for thought i figured its not as dangerous as using straIGHT GAS
It was an option, but it requires plenty of setup to make possible. It would be easier to try and opt for an existing fuel source instead of try to create apparatus to produce it
Dont hate on Arbys, thats like top tier fast food, in the market of trash fast food lol
Curly fries and sliders are hitters, but I cant digest those breads. Wait, "breads" in quotes because its just Soy and chewing gum essenitally.
I worked in fast food and trust me, you see alot lol
now add vtec
V8 air engine
speak louder or something, I cant hear U bro