Getting HIGH COMPRESSION for the 3D Printed Gas Engine (Part 2)
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- Опубликовано: 7 фев 2022
- Hello again! In this video I am showing myself designing a new piston and head to make high compression for the 3d printed gas engine project. Last video one of the major flaws was its lack of compression, so this video is focusing on getting compression so we can move on to the next step in this project, the fuel system. Once I have the project finished I am going to release the files for this project!
#3dPrinting #Engines 
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That's some sick progress bro! If your not going for a 100% 3d printed engine, maybe just buy a carburetor for an RC Nitrous Engine. Then you can use nitro fuel which burns a lot cooler and is a great lubricant.
Not only that, but a small film of oil/fuel on the valves and cylinder head might eliminate leaking all together.
Lastly, if you use nitrous, you can get away with a glow plug due to the methane reacting with the platinum, which means no need for sparkplug.
Thanks! I think I'm going to still try and 3d print a carburetor or some other fuel system. I'd love to use nitrous but I don't have access to any lol
@@CamdenBowen Not even the Nitro fuel from Hobby shops? If not it's pretty cheap on line
@@AxelDayton Ohhhh, I misread that as nitrous instead of nitro. Before I start testing any kind of stuff like that I think I will just try and make a version that can run on normal propane or something and then see what modifications I can do from there
@@CamdenBowen alrighty, you do you bro. Just a thought cause that's what I plan on doing with my engine
@B Tenold I don't think you're listening to what I'm saying either, I'm going to design one that actually works FIRST before I experiment with fuels I don't already have
One tip I have for you, try getting some flat aluminium bar, around 2-4 mm thick and file it down to the size of your connecting rod. I imagine that the 3d printed one would just explode when running the engine
I'm more worried the crankshaft will break before the connecting rod will, but I will just have to find out and see!
Wow it's an amazing step forward, can't wait to see how you improved the injection sistem!
Thanks!
Iam thrilled for the new part of this series :D
I really like this video series so far. Keep it up!
Thanks dude!
PRO TIP! Fill the inside mesh of the prints with water for a little bit of cooling and protecting the engine from heat. But it might be constantly failing horribly and spiling water everywhere. I don't know. I just feel like watercooling it is going to make it last enough to be used norlally.
I thought about doing a design where I had a watercooled cylinder Instead and a way to pump the water through a radiator, but I wanted to focus on the main principles first before getting into that but maybe one day :)
@@CamdenBowen One step at a time! I love getting distracted with a lot of things like that, getting ahead of myself when doing my own projects. I am sure that if you continue developing it, amazing results will come. Looking forward to see next improvements!
First!!!!
Yaaaaaay thanks for that lol
You should try the monotonic setting in cura, it's new but gives a nice sealed finish. I may have miss spelled that lol. Great work, glad you got your seal and can't wait to see this bad boy run.
Thanks! I will have to check that out for sure
Yeah, PLA 3D prints just can't do the stuff an engine needs. Using glue to cover the tiny holes in the head is a great idea. I look forward to seeing what you do with the carby.
I love seeing the design testing and iterations that go into these little projects. Looking forward to the next one!
You can add a sacrificial layer at the top of your supports with a tiny gap below the trouble area of the head. That will help clean up the support mess causing you issues seating the valves
lets gooooo. Had to turn on my computer so I could watch this in 4k with the whole family
o ring is genius. they should put those in real engines instead of metal ones
@@Earth_Elemental the temperature and friction levels in a real engine ar to high, so it would not last long.
Wow, I love this
Thanks!
Very Good video 😀
Thank you!
Maybe try printing the valve seat as a separate peace so that it prints facing the bed. You'd have a tighter filament and hopefully a better seal
A working engine with 3d printed parts, nice you can definitely do a engine but on a budget 😂
Cool! Think a flat head would work fine and be an easier print, just get your combustion chamber via a longer bore/shorter rod
Thank you! I initially considered a flathead design much like a Briggs and Stratton motor has but my biggest concern came from the gasket. Having this design allows me to use a uniform O ring as a head gasket that has worked perfectly. Meanwhile a flathead will require a unique gasket that could be prone to leaks or blowing in the process of making the engine
Dude from Lego Technic Embodiment channel used silicone for piston seal. If silicone is fire resistant enough, you should try it.
you should try a flathead engine design
You could try a square piston, as stupid as that may sound if you 3d print the hole where the piston sits in the center of the 3d printer and print the piston also in the center you will probably get a perfect seal.
Its a cool idea however, I want to be able to use copper pipes as a cylinder sleeve since it will hold up against the heat much better
nitrile o-rings is the way to go !
Hey have you thought about a filament dryer and maybe a dual z axis kit? I've noticed a lot of ringing in your prints. Also helped me with dimensional accuracy!
Actually I began using a dryer ever since this video, also my printer needed an alignment for the Z axis which helped alot
How has this amazing video only 60 views
Thanks! 326 views as of this moment lol
@@CamdenBowen haha yeah, ill try and replicate this thing. its amazing, any tips?
@@thechargedone169 Tones of trial and error. There's so many variables when it comes to these things that if even one isn't good enough it could compromise the whole engine. I would say tackle each of the biggest problems individually before trying to make a whole engine all at once
@@CamdenBowen thx man
You should be using TPU for the seals
You have to make a pistón with 3 rings to for compresión and one for lubrication
Maybe try resin and put it in the head. Also try putting an o ring between the cylinder and cylinder head
If anything you might of came up with another interesting project...a functional air compressor! 3d print the air tank and a functional compressor!
I like that! Or, even a vaccum pump!
@@CamdenBowen yeah just think of all the content with the Air tank alone. What filiment holds the most pressure, what settings got the most sealed tank, how big of a tank can you 3d print, integrate the compressor and the air tank into one mass print for compactness. Fuck I got a billion more ideas on just the air tank let alone on what you can do with the compressor/ vacuum pump.
Do you think you could 3D print with TPU the o rings? 🤔
Or maybe even ninja flex?
I tried using TPU o rings but it's actually worse than using a PLA one. It doesn't have any kind of sealing capability and has WAY to much friction unfortunately
@@CamdenBowen oh I see, might be something regarding the químical interaction between the lube and the tpu then, very interesting!
what happened to the first video of this series?
Put a baking soda on a super glue to make insanely hard bond
can we get sum files to print this?
imagine now making a lost PLA casting of this and there is your engine (you will anyways need a lathe but u get what i mean)
Just cover 5ye piston with graphite powder
super glue gets porous when it dries and that does not create a good seal. you might want to try a different glue to seal 3d prints, maybe epoxy or a uv-cured polymer glue, but not a solvent-based one
Why not dish the piston and make the head flat so that you can make the head less pourous when printing.
What oil are you using?
Just vegetable oil, It doesn't ruin the plastics and it smells nice
@@CamdenBowen Which vegetable oil. I'm also making an engine but it still has a lot of friction with olive oil and many other oils.
@@strangeman4200 doesn't matter, just any vegetable oil like Crisco should work
@@CamdenBowenok thanks. But how hard is it to push without oild
@@strangeman4200 pretty hard, the oil loosens things up really well
Why not a 2 stroke design?
When coming a new video?
Can you make V8 3-D print engine😊
can i have the stl files i would build this
why not make a 2 stroke gas engine?
It is much easier to change and adjust the engines variables on a four stroke over a two stroke. Two strokes while being mechanically simpler, rely on perfect timing which is determined by the physical shape of the cylinder itself. If something is off, it is much easier to adjust the valve timing on a four stroke by changing the cam timing
Your printers z axis might be a bit dodgy mate.
You should CNC Machine out a piston of aluminum or Teflon or graphite or something.
Or you could, if you want to use the cheaper option, wrap some sheet steel metal around the 3D printed piston. Or any metal which can withstand a HUGE amount of heat and stress.
I'm a mechanic man. If you want me to explain some stuff I'm down to help