ฝัง
- เผยแพร่เมื่อ 9 พ.ค. 2021
- Today I design and build a opposed-piston air pressure engine from 3d printed parts and some random parts laying around my home.
As promised, the Git repo is up on Github over here: github.com/AtMoT/OP-1
If you have any questions about the project then feel free to ask me in the comments section or contact me over on Twitter: @_AtMoT
Referenced videos:
Kurzey:
• 3D Printed Compressed ...
3DprintedLife:
• 3D Printing a Function...
Tom Stanton:
• Diaphragm Air Engine
GT MARTIN:
• GT MINI GETS SOME UPGR...
Integza:
• DIY Torquemeter - How ...
Used background music:
freemusicarchive.org/music/Ro...
freemusicarchive.org/music/Ke... - วิทยาศาสตร์และเทคโนโลยี
Bro, I'll tip my hat for the remarkable effort you put in to design a functioning engine in Blender! I've been very lucky not to run into a lot of air engine problems, but I guarantee that's going to change with my new one! Great video and looking forward to a version 2!
Good luck with your next engine! I have an engine project in the "pipeline" already, but probably will release another programming/simulation video before I work more seriously on that one. The new engine project will also see an improved dynamo setup, and most importantly - code for the dynamo haha.
Great project. I really appreciate that you've actually instrumented the device and provided metrics on it
Welcome to the painful world of air engines. Awesome design and building that dynamometer to measure the power was a great idea!
Painful? Maybe a little... but also a lot of fun and of course, exciting when the engine finally works haha.
For next time, the dynamo certainly needs a casing to hold onto all the components properly and I have a much better RPM algorithm figured out already.
Looking forward to your next projects as well :D
very nice. other people seem to be more qualified for feedback so im just here to compliment you and hopefully help with the algorithm : )
Yes, I’m trying to fill the exact same niche!
WOW and great editing stille 👍👍👍
You have to little subs when compare with the editing stile great video
@@StreamingLight Yes, absolutely.
This was so fun to watch, and your skills are off the charts!
this is a really excellently done video, i'm not sure why i got recommended this with such few views but maybe the algorithm is about to take it for a ride
5:21 I love it
I have gone through endless designs that never made it to fabrication, and ive made countless models that in some way or other don't end up working. Every single time I will say to myself, "this IS the one it's gonna work this time," but then I end up having to jerry rig something and It fails. But THIS TIME I know my design will work, and I might make a video on it. Only this time, I ran out off filament. The best engineering advice I can give is 1. The design with the fewest parts is the one that works the best. 2. Account for everything that could possibly go wrong (account for tolerances, dimensional accuracy, and leaks). NEVER EVER EVER think that you can just design an adapter or something later and just super glue it to your original design. If it doesn't work, redesign the whole thing. Because there is never only 1 problem.
Great video! Well played on the idea and the implementation. Also great job on the edit - - very enjoyable to watch
I was looking at 3d printed opposed piston engines for a while and somehow I never found your video. amazing video btw
where did his 9.9 mil subs go? were they also inside the evergreen?
When you said "not that kind yet" now I'm excited and I'm subscribed with notifications
You should check out the wonderful world of vacuum engines, it's much easier to work with and much safer than compressed air
I can hear the redesign firing which indicates things are working, but it seems to be firing and then binding or losing momentum. Larger flywheel, less advance on cams, smoother rotation. Unfortunately 3D printed pieces do not seem to hold up well if you do not consider graining. My guess is that at some point the layers began to separate or simply wore away and the cylinder or valves no longer sealed properly.
I think in the end the problem probably actually was one of those cracks. The crack in one of the structural parts allowed it to very slightly bend, thus making that side's crankshaft also ever-so-slightly misaligned. This means that it would have been applying a torque on the connecting rod, which in turn would push the piston against the cylinder wall. The only problem with this theory is that the engine didn't seem to be rougher/harder to manually crank, which is something I would have expected, if the piston is seizing as a result of being pushed into the side of the cylinder.
Also as for that comment about "yet"... that "yet" is certainly quite far in the future as I certainly would require more tools, and in particular, I'd need a better workshop than my office room haha.
My man out here showing me up with his art software meanwhile I’m trying to make a box the correct size in cad
Hey dude! Loved the video!
Very cool!!
Now replace the 2 crankshafts with a hollow ellipsoid flywheel, and one-piece pistons/rods, to create the opposite/reverse of that: th-cam.com/video/kHXKNpXoQUo/w-d-xo.html Oh, and use 2 (real) bearings, to support the one side of each connecting rod, in case it´s buckling...
Nice video 👍
Bonjour, si il y a un avantage d avoir des billes plus légères , il y a les billes en céramique polie d airsoft de 6mm
That is the most stupid awesomeness I’ve seen today good design
Haha thanks.
Taking a little bit time off to figure out more properly how I want to approach videomaking on TH-cam... but next video I will release will be another "engine video", potentially even more stupid than this one ;)
(Unless I just completely fail at it, lol)
Judging by the decline in power over each run, something in the engine is wearing down rapidly and perhaps starting to bind.
It is possible. Though I figure the root cause is due to the crack in the casing after-all - it would mean the crankshaft gets ever-so-slightly misaligned, creating higher friction in the rod and piston movement.
this is a stretch but did you try a different lubricant because some lubricants can expand plastics and/ or make them bind. I used motomaster silicon lubricant and a couple other types with petg and they made the engine rub very badly by expanding the plastic.
I used WD 40 Silicone lubricant because a creator by the name Tom Stanton had recommended it for one of his videos. He uses PLA plastic, just like I did, so I doubt that would be the problem.
Nice.
Great project to learn!
u are awesome 😍🤩🥺🥺
Hey thanks haha!
[*] in the chat for the guy using blender to do it
Had to be pure agony
Actually, it's not as bad as many would think... I personally think that CAD software can be more clunky and unwieldy to use in some circumstances... but of course, CAD does give higher precision (if you ask it to) and allows for easier design tweaks and even parametrization of whole components.
maybe try using a different type of material? Or lube it TF up
just bigger flyweel....
Why hasn't this basically simple technology been promoted into a mass produced vehicle? No global warming, no oil wars.
There are a lot of reasons but two of the most glaring problems with that idea are that the energy density of compressed gases is extremely low when compared to fossil fuels or batteries and that the best possible energy efficiency of a compressed gas engine is actually quite a bit lower than that of a fossil fuel based internal combustion engine. The future for carbon-neutral vehicles is electric vehicles (hopefully with a better battery chemistry than Li-ion in the future) recharged with renewables or nuclear energy.)
eeeeee