Super Capacitor Plane
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- เผยแพร่เมื่อ 20 ธ.ค. 2023
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#engine #3dprinting - วิทยาศาสตร์และเทคโนโลยี
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FULL BRIDGE RECTIFIER!!!
HE HAS BEEN SUMMONED!
I KNEW YOU WOULD BE HERE!
HE IS ALWAYS HERE
full bridge rectum pliers!!!
ALLWAYS
It’s beautiful.
I love the camaraderie amongst Engineering TH-cam!
Thanks for all you do Destin!
No
It’s just amazing, I could see people in a future society making these and using them for communication or transport, the clean energy and easy production is such a necessity for creative ideas in developing countries.
Absolutely
But thoroughly useless like all of Tom’s projects. If he turned his mind to solving task that actually need solving, I’m might find it easier to accept him as a fellow human. However, with that hair colour and his current penchant for making less than pointless objects, Ginger Tom can S a F.
1 to 1 crank to flight time blew my mind! Love Tom's work! ❤
My hand gets sore pretty quickly if I have too much crank time 🌈
Makes me think it'd be sweet to make it a treadle charger instead of hand crank and make a second battery pack. UNLIMITED POWAAAAHHHH!
I am so happy you are able to build these projects and share them with us. Nearly all of the concepts you present are the first I've heard of them, but they are so very fascinating and enjoyable to me, even as someone who does not consider themselves to be a hobbyist of this sort of thing.
Tbh this sort of thing is pretty ideal for kids wanting to fly an RC plane. The flight time isn't very long, but that imo is a good thing, gives the kids less of a chance to crash the plane. And the short re-charge time means they can go again and again until they're all tuckered out.
It's also safer then handing a bunch of kids a lithium polymer battery.
I used to have an old super capacitor plane, air hog thing. it was amazing.
I havent seen one in years though.
Yeah its good with the short charge time cus kids these days have got the attention span of a flea 😂
i think it forces the kids to crash the plane multiple times to recharge the thing.
@@Darkknight512 they use nicad batteries for kids stuff. a lot more stable then lithium for less energy density, and dont pop like copasitors.
That whole build is perfection. The functional yet slick look of the plane, the color scheme, the wing build, the involved tech, the crank, the simple fun of flying it, the ingenuity and dedication you've poured into all of this. If this where a kit, I'd be all over it.
Same, would be an awesome kit to play with!
totally impressive. thinking where we were 35 years ago
Can we buy the stl files for this build ?
Yes, this is so cool❤
Only thing that comes to my mind in a way of improving it is a way to ride a bike to the field and use the bike somehow to crank the generator!
@TomStantonEngineering : if you can power the R/C electronics independently of the ESC using a Schottky diode and a DC-DC converter, you can keep the electronics alive longer. Unlike batteries, there is no problem with discharging a capacitor to zero volts, so anything from a Joule Thief boost converter all the way up will work for the controls. You set the boost converter to put out > 5VDC and feed power to the RC RX through Schottky diodes from the DC-DC converter and the capacitor pack.
I use a 1S lipo for radio and servos - runs to 3.3 volts on all my AM yacht and 2.4gHz Flysky gear. Suspect the ESC sets the limit and may be resettable.
Why schottky diodes? What do they do?
You can add a raft to your print in the slicer to increase the surface area on the build plate. I usually do it for tricky prints with multiple contact points with the plate and it makes a huge difference.
...
Do you know Jesus Christ can set you free from sins and save you from hell today
Jesus Christ is the only hope in this world no other gods will lead you to heaven
There is no security or hope with out Jesus Christ in this world come and repent of all sins today
Today is the day of salvation come to the loving savior Today repent and do not go to hell
Come to Jesus Christ today
Jesus Christ is only way to heaven
Repent and follow him today seek his heart Jesus Christ can fill the emptiness he can fill the void
Heaven and hell is real cone to the loving savior today
Today is the day of salvation tomorrow might be to late come to the loving savior today
Romans 6.23
For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
John 3:16-21
16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. 17 For God sent not his Son into the world to condemn the world; but that the world through him might be saved. 18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God. 19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. 20 For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. 21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
Mark 1.15
15 And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
2 Peter 3:9
The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
Hebrews 11:6
6 But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.
Jesus
In order to get the prop blades to fold in flight you will need to enable the ESC brake. That way when you bring the throttle to zero the motor will not freewheel, but will physically stop and the blades will fold.
Would be cool if it could do this automatic. Meaning that if you do this just a bit before the motor would die it would extend your glide time.
Doesn't ESC braking require a holding charge though? When out of power to run the motor, the braking may not work either.
I guess you only need to brake shortly as after the props fold they won't spin out again
Yes, but once the motor stops and props fold in, it wouldn't take much. Almost all plane ESCs have this feature built-in. @@Alluvian567
@@Alluvian567 if you do it right before by having a volt meter or low-voltage trigger on-board, it can do it right before. It only needs to brake for maybe a second, then the props will come in, and as long as it isn't turning too sharply or nosediving at low speeds, the force of the incoming air will hold them back with very little added drag.
I am a mechanical engineer and I am always blown away by your videos. Not only your creativity and raw engineering skills which go without saying, but also the extreme level of "clean" all your builds and components have is just so statisfying to watch!
I believe Tom is also an engineer.
He is an aerospace engineer
I also love his channel. There are many brilliant makers here. Another amazing one is Shane from @StuffMadeHere - a ton of engineering, programming and crazy ideas.
Wonderful fun with electronics can be found @greatscottlab
And if you are interested in various forms of generators, batteries and amazing humour, Robert Murray-Smith from @ThinkingandTinkering can be your guy 😊
Right? I was amazed how clean the capacitor bank looked!
agree!!
This is so clearly presented... Battery vs supercap with the green and red text, the consideration of volts dropping and need of control while gliding the rest of the way...
From an engineering perspective, though, I do wonder whether the plane really pushed even 100W during operation. As an example, running those supercaps at the same power density (per gram) as the lithium battery, they'd run from full charge to zero in about 12 seconds. Also, checking the charging, seemed like it took about 90s to charge the capacitors to half voltage - that's a quarter of their full energy capacity, so the crank power output was (0.125Wh * 6 / 4) / 90s ~ 7.5W over the duration, which is well below the charge rate of even one lithium battery.
Not saying a supercap plane isn't awesome, but it does help illustrate why lithium batteries are in such high demand - they really have great power/energy characteristics.
That's an awesome interesting piece of kit you've built.
If you take one suggestion, for powered gliders, there is an option built into the ESC to control the engine, so that when power is not applied, it actively prevents the propeller from spinning, as the windmilling of it will take away quite some gliding performance as it's eating up a lot of your kinetic energy by means of creating drag.
Once again, great design.
Theres a Full Bridge Rectifier... Give it an hour and Tom's summoning circuit will bring Mehdi!
FOOL BRIDGE RECTIFIER
@@tyty_5869😂😂😂
Tom will have to do some Mehditation for that hehehe
He just showed up
Before Tom even said it, I had Mehdi's voice in my head 😂
I don't know about other people, but having both the hand crank generator and the foam plane toy would definitely cut my computer game time in half during childhood.
Back then, I lived in the province with lots of plains and farm lands. Would have a blast chasing that thing for miles.
Yes i just have rubber ones or slingshot type planes
2:54 good god this sounds *exactly* like the handcrank for powering the lighthouse all the way back in Myst. The memories, man. Good to know they had the sound design on point.
Knowledge of electronics like this is really useful. I have a basic understanding enough to understanding what you’re doing, but not on a fundamental level to build something from scratch like what you did with building a charging motor. wonderful. I like the idea of maybe 3D printing parts to build my own windmill or hydropower from a stream and be able to scavenge parts from current electronics and build my own device from them. Finding new life from old parts would be so fun and useful.
You might need to go to your ESC settings and turn on the brake. That way when you cut the power the motor will stop spinning and give the prop a split second to fold back.
Why didn't he just use a brim or raft to get better build plate adhesion and integrate the batter and wire connectors into the design to save weight?
The brake requires power. Motor stopped from no power
@@spudjames5038 motor stopped because ESC measured voltage below minimal cutoff value set in parameters, even old typical 20A ESCs have its settings accessible via throttle movement on startup and counting beeps of the engine, very nice to lower down cutoff value after switching to Li-Ion instead of Li-Po battery chemistry. Also could be desirable in this scenario when we want to drain capacitors as much as possible. Also ESC brake is done by shorting motor coil terminals through mosfets on high side or low side, it does not consume power from battery or capacitor source. Just like when you touch the two wires coming out from DC motor and try to spin it by hand, you will feel braking force.
He needs to make this where the wings fold in, and the V tail into an X tail, so he can rocket it up to altitude and then glide back down..
Use a diode and a separate supercap to power the RC controls, this way they will retain power longer than the motor and allow you to set the ESC cutoff voltage lower and get more flight time.
As a child, I went to an aircraft modeling club, and there we made gliders with a rubber engine. And we also made foldable propeller blades. At the same time, we had a special stopper, which, after relaxing the rubber motor, stopped the propeller blades in a certain “safe” position, after which they folded with a small rubber band along the fuselage.
Stop the Prop by Pulling Up into a momentary Stall, Prope should back and stay there.
@@HoundDogMech Именно так.
On most electronic speed controllers (ESC) like what he used in this project there is a setting called "brake". As soon as the ESC senses a rotation, when zero rotation is commanded, it applies a small reverse current to cause the motor to stop spinning. I have used it on many glider airplanes with folding props. Occasionally, like you mentioned, you'd have to blip the throttle to get the prop stopped in the ideal position.
@@Carrera0to60 In the case described by the author of the video, the option with electronic engine stop is not correct. The charge of super capacitors is very small, and when they are discharged there is no way to do this correctly.
But you can try to make an electromechanical stopper. It is necessary that it be turned on all the time while the engine is running, and when turned off, it blocks rotation. I would try to make something similar from a small relay or solenoid. It will, of course, consume some energy, but it might be worth a try.
In the case of a rubber motor, the rubber band with stored energy pulled the propeller axis more strongly towards itself. When it had completely used up the energy reserve, at this point, the rod no longer pulled so much, and under the action of the spring it moved forward, where it touched the adjusting bolt.
...
Only Jesus Christ blood can cleanse us of are sins come to Jesus Christ today
Romans 6:23
For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord.
Come to Jesus Christ today
Jesus Christ is only way to heaven
Repent and follow him today seek his heart Jesus Christ can fill the emptiness he can fill the void.
The Holy Spirit can lead you guide and confort you through it all
Heaven and hell is real cone to the loving savior today
Today is the day of salvation tomorrow might be to late come to the loving savior today
John 3:16-21
16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. 17 For God sent not his Son into the world to condemn the world; but that the world through him might be saved. 18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God. 19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. 20 For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. 21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
Mark 1.15
15 And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
2 Peter 3:9
The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
Hebrews 11:6
6 But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.
Jesus
You are one of these incredible TH-cam crafts people who know electronics, understand mechanic principles and casually use a 3D printer like nbd. There's seemingly a few of you. But you are the only one I know who isn't braggy or low key condescending about it. You just seem to love what you do and share it. No narcissism, no _I'm-mr.-Meeseeks-look-at-mee_ needed.
Makes me even more excited to finish my generator project. Still waiting on the magnets ! But my coils are all wired up and ready. Along with a nice little control board a good friend has made for me to rectify and smooth the output. Beefing it up a little in preparation for a wind setup instead of the hand crank. Then if that works at this scale I’ll planning on making a much bigger version. 👍🏼 keep up the great work, love all of your videos.
You...made a rubber band plane without the rubber band 😂 I love it! You know, back in the day we used to have competitive rubber band plane free flight groups. It was more like..
Going mostly against your own time to see who can get the longest flights and such. It was super fun. People had fast winders that used a little motor to spin the prop up and would get these insane 10 minute flights. No radio, just a static design with flaps you'd set in place. It was amazing!
Those competitions still very much exist, flight durations are over 40 minutes now
?@@Kington99😲
wow!
When you are 3d printing with small surface area on the first layer, add a brim, and then cut it off or deburr it. OrcaSlicer actually has an Auto'Brim setting that figures it out for you
Thank you for this. Some days, I need all the help I can get, and your very cool videos have a remarkable way of improving my mood. Very much appreciated.
Works well enough to sell it! Great kit there! Thanks for this video, very nice work.
Out of all the unique planes you've built, I feel this one is the most... well made. That isn't to say the others seem shoddy or anything, but with this one, if someone only saw the finished product and the flying, it would be easy to assume it was a store-bought product. The way the prop folds and the wings easily detach, the simplicity of the charging system with no batteries or grid power required, this would be a great toy to bring on camping trips or something.
This video is a shameless clickbait. Tom Stanton has no respect for his viewers and them are so smart that they forget what they were sold in the thumbnails. Probably no dignity either to mind it if they noticed.
@suprememasteroftheuniverse he literally does that all the time though. Yeah, 6 capacitors arranged to look like a radial engine would have been cute, but it would have suffered catastrophic failure from the one thing he specifically designed the real plane to be able to survive.
@@suprememasteroftheuniverse"Clickbait" implies the title and thumbnail promise something not shown in the video. Sure, the exact thumbnail doesn't show up in the video, but you didn't click on this to see the thumbnail, because you already did. You clicked on it because you wanted to see a "Super Capacitor Plane", which _was_ shown in the video.
And it working very well on the first try
You gotta set the brake up on the ESC if you want the prop to fold up in flight.
amazing engineer . 80 year old in November 2024 and still fascinated by technology .. Your videos and projects are always a huge inspiration to the upcoming aero modelers . your presentations are so professionally done that you make it seem easy . excellent
This was just great to watch, all your growth and development, skills and dedication. Thank you all our YT Teachers
You could use the "Brim" selection in yout slicer program to bild a wider base around your model and have better stability -adhesion to the bed. Thanks for your video
12:00 - really impressive results, far better than expected. And i like the design of that plane which looked really professional.
I remember having one of those foam capacitor planes as a kid. Thanks for the nostalgia.
Amazing content. This is a really cool concept because the way you implemented it you actually get a short flight in, but you can get right back to flying in only a short time. If the efficiencies can be improved, even to 3 minutes of flight time to 1 minute of changing you quickly have something that may have commercial use in some way. Any time you can combine planes, trains, Ai, robots, 3d printing, automation... these are a winning formula.
Very neat! Maybe you could squeeze the last couple volts (
I was thinking the same. Something like a joule thief would be easy to implement.
A SEPIC converter would be nice here. These days they can get an efficiency of around 85-90%.
Using some schottky diodes also helps.
Boosting such low voltages is quite inefficient, and the last 5 volts anyways contain only 10% of the total energy of the full 16V.
(The crux is that the lower the supply voltage, the more current you need to draw for a given power requirement.)
So, this isn't worthwhile.
@@FlyGamingChannelIt don’t think it would work, unfortunately, as a joule thief’s boosted charge immediately collapses in the face of any significant loading.
Maybe even regenerative propeller movement.
This is fantastic dude - great work! Your videos always make me wanna get more into RC planes
I love both of your videos, glad to see you here BPS
You won’t
Hi joe
It would be a cool idea for you to make a air launched rocket that launches off of a plane
Rocket launch via drone or drone launch via rocket would be pretty cool
I love the level of dedication to developing one specific topic and workshopping it for several iterations. Well done!
Love this project, enjoy everything you’ve done so far actually!
Brilliant to see someone making creative examples of science in motion, which is why I love your channel 🙂 keep up the amazing work !
I truly appreciate the amount of work you put into your builds. It's nice to see things well built and not just hot glue. Although that obviously has it's place as well.
Ryan Air is going to love you! We now get to pedal in our seats before takeoff 😂 Great video, as always bro!
Honestly, that's a hilarious thought. I wonder how long it would take for an airliner filled with pedal cranking passengers to be able to launch the plane into the air by hand power alone. it would probably make it easier to fall asleep on the plane afterwards lol.
Honestly that crank assembly plus that first plane would make a GREAT learning toy. Like seriously if it was sold in a kit so you didn't have to solder anything just assembly it would be so cool.
Awesome video! So many different engineering concepts in this project. Love it.
I would have loved this as a kid. Have it all slide into a nice case, and you got yourself a cool science toy. Add some sort of controller that works with your phone as the brains, you got yourself an awesome entry level RC. I have no idea what I am talking about, but I know I would have loved it as a kid.
This feels like an awesome evolution of your videos! Incorporated so many learnings from your other designs into one. Most of all I appreciate your desire for green/natural efficiency in engineering and how you deliver it in such simple yet elegant builds
..
Jesus Christ is the only hope in this world no other gods will lead you to heaven
There is no security or hope with out Jesus Christ in this world come and repent of all sins today
Today is the day of salvation come to the loving savior Today repent and do not go to hell
Come to Jesus Christ today
Jesus Christ is only way to heaven
Repent and follow him today seek his heart Jesus Christ can fill the emptiness he can fill the void
Heaven and hell is real cone to the loving savior today
Today is the day of salvation tomorrow might be to late come to the loving savior today
Holy Spirit Can give you peace guidance and purpose and the Lord will
John 3:16-21
16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. 17 For God sent not his Son into the world to condemn the world; but that the world through him might be saved. 18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God. 19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. 20 For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. 21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
Mark 1.15
15 And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
2 Peter 3:9
The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
Hebrews 11:6
6 But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.
Jesus
The super cap once heat shrinked was such a nice job. Great project!
Awesome plane build with super capacitors and a brushless DC motor! Considering the motor's regenerative braking capability for descent could be a fantastic addition. Exploring energy recovery options could further enhance the efficiency of your impressive project. Keep up the great work and innovation!
Inviting someone to power something by hand-cranked generator is an excellent way of getting them to realize real damn quick why we don't use them to power anything.
Super Capacitors have fascinated me ever since I bought my first solar powered watch, which uses a tiny Super Capacitor to store the sun's energy overnight. On the other end of the spectrum are some Formula One cars which store braking energy in Super Capacitors for a burst of speed when called for. Very nice to have found them again, here,
Awesome project.
For less drag turn the Motor Stop feature in the ESC.
Really enjoyed watching your video! The combo of teaching and building the RC plane with a hand crank generator is such a cool concept. Your frustration with the windmilling drag got me thinking - what if you experimented with adding a subtle spring on the lee side of the propellers? It could gently pull them in after the engine stops, minimizing drag against the plane's body. Just tossing the idea out there! Keep up the fantastic work, looking forward to more innovative projects!
Very cool! I suggest a 3-phase generator: with a 6-diode full bridge rectifier, you get far less jitter on the output, which increases efficiency by making your filter caps work less. About every generator that makes DC uses 3-phase.
That's great, but for cost savings and the fact that smooth current for charging isn't needed, single phase is fine.
Furthermore while 3 phase uses 6 diodes, a bridge rectifyer uses 4 diodes but one can reduce the part count to two diodes and use half the turns of copper coils if they make a Delon Full Wave Voltage Doubler with two diodes and his supercapacitors. Maybe with the money saved, one could splurge and get six 2.9v zener diodes as a rudimentary capacitor balancer to prevent over charging unballanced capacitors.
You don't need filter caps when all you're worrying about is charging up capacitors lol
You don't need particularly clean DC when charging caps.
This is a very fine effort. The generator is ideal for use outdoors, will never run out and is more fun than a battery.
It's also fascinating how little energy a plane needs to keep flying. I really hope we see more use of larger aircraft for things like courier delivery etc as performance and safety get better.
%1000 appreciate that you have big brain power, and a good eye for craftsmanship and design.
Your modular wings and tail with 3-D printed components are truly spectacular.
You should add a boost converter to get the most out of the capacitors. It might lower the efficiency by %10-%20 but it might result in a longer flight time.
Is that what it is called?
@@Maxim.Teleguz boost or step-up converter, yes.
The wide usable voltage range from 18 to 6.5 or 5 volts negates the benefit of a boost converter. You might end up getting less in the end, definitely not worth it.
@@celeron55 The thing is that capacitors are totally fine with being discharged all the way down to 0V. So discharging from 18V to only 6V means you still have 33% of your energy left in the caps. If a boost converter has better than 66% efficiency (and weighs a negligible amount) it would improve run-time. Anther option could be to use more caps in series and go all the way up to 48V or so (maybe with a step-down converter to ~18V if your components can’t handle 48V directly). That way the 6V cut-off means you only lose 12%.
I like this idea, squeeze all energy from these caps. But there are some voices against it. Maybe a Joule thief to save on weight?
Hi Tom. I have an idea for a project: how about you use a microwave dish pointed at the plane (and maybe even have some automated tracking stuff to keep it pointed there) and see if you can transmit enough power wirelessly to keep the plane in the air by having a circuit on the plane that converts the received microwave energy back into a voltage to power the plane's flight systems.
Might start a fire on the plane though
@@FilmLadd Oh good point. He'll want some nice fire-retardant coating. :)
@FilmLadd not only a plane, but fly-by birds. From the other hand: fly plane endlessly and munch some fried chic... ehm, pigeon ;)
It could work, but it's also a great way to get the UK equivalent of the FCC *very* angry.
This is so cool! Im in physics 2 right now and learning all about this and its so cool seeing the stuff I do on paper in real life!
Damn, that is a really really well modeled fuselage- If I ever get back into RC, i'll probably make something like that.
I wonder if you can co-op the windmilling of the propeller for something useful, like pumping a little extra power back into the caps to extend control time during your descent.
I love watching his videos, he just makes me want to get smarter. He amazes me with his thought process.
ok, then do it, you have books you have questions, go read and ask.
@@osmacar5331I know you're trying to encourage, but this came off as smarmy and condescending
I am astounded at the size of those supercapacitors. Long ago, I remember my HS physics teacher bringing out this wood base with about 4 big (~1.5" dia x 4" long) cylinders on it. It was a half-farad capacitor, and it still carried a lot of energy.
This is a well thought out project that's not only functional and is also one hell of a good looking model plane too. Only thing to do now is to program the ESC to stop the motor, so that the propeller blades will stop and fold back as I reckon in some good thermal weather that model will stay up their for hours. But I guess that will have to wait until summer. 😉
You can use a DC booster to discharge the capacitors more. I've seen small microcircuits in flashlights that allow you to drain regular batteries to almost zero. Efficiency will decrease, charging time will increase, but this will allow you to stay in flight longer on same capacitors.
Maybe add a boost converter and keep a constant 7 V output (or higher) to get extra flight time. Although... even at >90% efficiency, the small amount of wasted power may be enough to discourage using a converter all together and not be worth it. Probably a good experiment to try out on another video! :)
Don't forget the added weight
@@crackedemerald4930 yup, this is true
Tom's calculation is that the energy in the caps is about the same as a coin cell. I'd assume you only would add seconds of run time with a boost converter. Not to mention it needs to be light and high current.
And you'd lose control authority very quickly after engine failure.
@@merseyviking Oh yea, that'd be the real nail in the coffin.
You could possibly eek more thrust time out by checking that the ESC is not configured to limit the output to protect the battery pack. You can also configure the ESC to set prop brake on so that it folds and stops, to reduce drag.
The cowl is awsome. Cleanest exsposed motor mount possible.
man, you get to prototype your own ideas and make a living out of it, you inspire me a lot.
It really shows how good Li-ion is... with a basic charge regulator you can safely charge Li-ion easily from your generator... Even a basic linear regulating LM317 set to 4.2V (or 8.4V) would be OK.
that's hours of cranking one battery. You overstimate human's "im tired" at just 5watt production after 10 mins.
he should repurpose one of his bikes as a generator lol@@dimitar4y
@@ilovehumongoushonkers he can but thousands of people already did it on youtube and it's not worth it
@@dimitar4y Realistically it's only about 10 minutes of cranking to fill up a battery. If the battery holds 10 watt hours and the crank is capable of producing 50 watts.
@@DKFX1 where's the losses, bud.
If you have trouble with adhesion to the print bed during 3D printing (usually with prints that have a low area of contact with the bed, but even more so the taller they get) it could help printing with a raft or brim.
Thanks for the lesson on capacitor batteries
LOVE your content! Love these aviation and unconventional powered flight videos! Keep it up!
In theory, with a folding propeller, if you could apply some kind of braking mechanism to the back of the motor, it would cause the propeller to stop spinning and fold back against the fuselage.
Another idea would be to have a spring loaded nose cone that the power of the motor spinning would lead to the spring being compressed, but under a certain RPM, the spring would overcome the centrifugal forces, and drive the propeller back into its resting position, thereby reducing its total drag.
At the same time, at least in theory, the nose cone would also help reduce drag just a tiny bit.
Admittedly, this part would greatly increase the complexity of the machine, and could fail to operate [by breaking, unscrewing, or wobbling excessively] if not super well thought out, and it would also change the balance of the plane's center of mass, seeing as it would be added to the front of the plane, so, in response, one might want to extend the tail boom a little to make up for the addition of the weight on the front.
It is something that happens sort of, on existing variable pitch propellers, although by a somewhat different method.
Where they fold back radially, instead of axially, one can fold back modern propellers so that they produce very much less drag if an engine stalls in flight.
I could envision several different ways of making such a propeller 'return' device, and, while none of them are pleasingly simple, several of them come across to me as reliable enough to work repeatedly, even out of printed plastic, perhaps upwards of ten times before failure.
Making them from bonded carbon fiber, however, could make them nearly indestructible.
you should be able to program the ESC to apply a brake when you stop the motor .
Using the motor as a generator to recharge the capacitor could get extended flight time if you initially go really high and then want to do a bit more low flying at the end - whilst your ideas would optimally extend gliding I believe having throttle control on landing could be more useful and fun in most cases. A switch between braking and regeneration would be even better although it may be heavy to implement both.
This is one of your best. The capacity plane is very good. Notable that this aircraft didn't destroy itself on landing as often happens.
Watching your work with these experiments, it must have been such a shock that it went so well first try! Well done!
That windmill effect of the prop during guide may actually be helping sustain the voltages in the system.
Try adding a brim to the print first layer, 8-10 lines wide with a .01 offset from the print base. It should mimic a larger first layer’s bed adhesion but it snaps off pretty easily leaving a more aerodynamic nose.
The further I get into this video the more amazed I am of your skills!
Cool project. You might find some significant performance gains by fairing your wing roots with the fuselage. With the way they currently stand off a fair ways you likely have added two more wing tips and the vortices and inefficiencies they bring.
You can set your ESC to active break which will reduce the drag quite effectively. I think the concept is brilliant and I wonder if it could be applied to indoor planes while maintaining the typical flight time of about five minutes (only 2s required, however weight is relevant).
By far one of my favorite and IMO your best videos/ builds yet. So muchI'd buy that powered glider and crank generator as a kit!
This could be an absolutely invaluable tool as a soldier or a hunter. Gives you portable eagle eyes with a few minutes of cranking.
When you print things with small contact areas, you can use brims to give it more bed adhesion strength
Just found your channel and this is the first of many videos that I'll be watching. I was glued to the screen and I'm annoyed that I have to go out now and can't watch anymore of your content until later hahahaha
You can definitely increase the gear ratio on your crank! Weighting the crank handle should help as well to give you some inertia, that way you don’t have to use as much effort to crank and can therefore make the ratio even higher. Just be sure not to break the crank lol
You set a good example for people getting into this kind of hobby, I hate seeing videos of messy projects with extra long cables flying everywhere, no care or thought put into how it looks or any smart decisions in the design. Your projects are always clean and professional
you have to setup motor brake in the ESC when using a folding propeller, otherwise it will keep spinning adding massive drag.
This channel has become as much about prototyping and manufacturing as aeronautical engineering, and I’m here for it!
1:54 FULL BRIDGE RECTIFIER!!!
Epic idea! I would suggest adding a boost converter or joule thief circuit to the output of the super capacitors, as the discharge curve goes from very steep at higher voltages to very shallow at lower voltages, so you are not using most of your range energy that you put in at the moment. If you add a simple boost converter I think it could really help it. The only problem would be that for higher output currents you would need a bigger boost converter, which is more mass, but I don't imagine that the plane itself draws more than 1 or 2 amps.
Thats awesome for remote areas camping without swapping batteries! Try getting a bicycle crank sized "Charger" and get bigger and bigger packs! Should scale pretty well and give you some exercise haha. Also would have no maintenance vs Lithium packs, as they require some care for storage.
Hey love your videos. One note. In a loving way, its super jarring when increasing speed of video playback to 10x while not decreasing volume of the video ❤️
This is too cool, I would TOTALLY buy a kit like this.
all your videos are great but this one is the best I think. one of the coolest plane builds I've seen on youtube with the basically 1:1 cranking to flying time. I'd really love to see a video where you refine the concept even further.
Yea, he absolutely nailed it on this one.
I'm beginning to see supercompacitor aircraft, much like the foam toy you show to introduce the concept, be used as a power source for modern free flight (non-remote controlled) competitions. It's nearly replaced the old eyedropper-fed nitro freeflight to my understanding, except for certain "heritage" competitions. It's a very neat modern spin on a very old sport
The plane you built really seems close to a finalized toy product. The folding propeller is great, and would be a boon for parents who otherwise have to deal with kids upset that their plane prop breaks on the first landing. I had the AirHogz air pressure powered plane as a kid, and this really feels like the next version of that, a spiritual successor if you will. This time, super caps instead of air powered, haha.
I'm in love with this project, brings back nostalgia from those times where I used to study Robotics, also, Tom, I find surprising that I haven't seen a video about you experimenting with Ionic Thrust, any reason in particular? I have faith if you make a video about it it's gonna be top tier delightful content! Cheers and greetings from Argentina!
How do you increase the thrust by factor 100? There are experiments but far too weak
@@johannesgoetzen I'm sure fluid mechanics is involved, I don't think Ionic Thrust can be powerful on it's own, I think it can be used in conjunction with other concepts, still... I'm talking from my deep ignorance on the subject, that's why I suggest Tom to educate us on the matter :)
@@marcovalentinoalvarado3290 what's the purpose of using it combined with other technologies? That would be much heavier
Tom, I'm an electrical engineer and want to compliment you on a outstanding job! I'm jealous, wish I had a place to keep a laser printer! That is a brilliant design! But then, I would expect nothing less from an excellent Aerospace engineer like yourself! I want to add that I believe the long term solution to the "battery" problem of electric vehicles is not better lithium batteries but more research and advancements on super capacitors to significantly increase their energy density to be at least equal to lithium ion batteries!
Very nice project!
I have a pro tip for you: activate the brake function on the ESC. That way, the prop can't windmill anymore after cutoff and fold in place for safe landing. Merry Christmas, everybody!
Tom, I love your builds. Been a fan for years now. Have a great new year ahead bro
You need to be teaching in schools. This is just what we need to inspire the next generation of engineers we so desperately need. I know if I could have done something like this at school, I wouldn't have wanted to go home.
Don't think they could learn from TH-cam video?
You constantly prove to inspire. bravo
You should go and take a look of the episode on the Flight Test channel where they did the same with powering and making it RC of one of these capacitor, powered radio controlled RC model airplane.
I wonder if there’s a light weight way to raven out the power output of the capacitor, so that it gives a more even power curve throughout the flight, as well as possibly be more efficient to where you actually get longer flights.