Haha great reference! There is a still image of that fan out there on a backwater forum I stumbled across during this project, I was looking for punkah fans. Few will have heard of it but a "punkah" fan was an old Indian (the country) invention, around 500 AD. Pretty much a slave would stand in a corner pulling a rope system, which would sway a carpet hanging from the ceiling. It's one of the first known examples of a "fan" and I wanted to put it in the video just ran out of time
Built with the right materials you could have a VERY marketable product. I kniw i would pay big bucks as a functional Showpiece for a house... Been think of this for years! Bravo, Sir! Keep up the EXCELLENT thinking!
Yeah I agree, it is just a 3-d printed prototype so I firmly believe it could be made to last at least an hour with the right materials and gearing engineer. Nothing that saves energy is ever as good as fossil fuel! Just have to live with that.
And unfortunately would put it further from the wall and would create more undesirable leverage unto the supporting pulley overhead. Definitely thought of it though :) and also steel round stock gets wildly expensive as you grow in diameter :P
So you're next step is helping people build them on their own. Could you use K'nex? You're next video needs to be called "How to build the gravity energy fan at home with common parts and hand tools". If you take too long, I will beat you to it.
Все понятно истории спрашивала про энергии находятся экологически чистые материалы природы погибают растений которые учёных письма потому напоминаем вам самые часов показатели механизмы предназначенные специально нагрузки гиря тяжести скорости движения время силы даёте зарплату генераторах любой другой шахты лифта можно получить настоящее строительство 🏠 будущем электронной электрические сети не нужно сделать печки углями не понравилось непонятно природы погибают наводнение помните что людям половину суммы потерять деньги утонули 🏠 за погодой повезло ураганные ливневой какие москвичами автомобилями не правильно разрешается родителей пешеходов гибели людей которые соответствуют мог бы успеть сразу несколько организаций для будущих электрические сети Интернет помогите пожалуйста отправьте пожалуйста Владимир Владимирович Путин ?
@@AlaskanInsights haha yeah I think you could squeeze a few more minutes of run time with a nice gear mesh. One day I am hoping to return to it with some money to play with
Yes not 640, that was our mistake we re-did the math after the video was done and it is actually 67. Here is the math to prove it: The Gravitational potential energy of the weight (25lbs) at 8ft above ground = 271 J Gravity Fan run time = 16 minutes 271 J / 16 mins = 0.283 Watts to power our fan. Standard ceiling fan uses 75 watts/hr at 60 rpm, so about 18.75 watts/16 mins. 18.75 watts (to run a standard ceiling fan for 16 mins) / 0.283 watts (to run our fan for 16 mins) = 67 times more energy efficient
Hello! I am trying to accomplish something similar for a large chicken coop built into a connex storage container. We need a fan for the night time when they're asleep but need a higher gearing ratio so we can go for several hours off a single lifting of the main weight. Did you ever commercialize the product? Are there plans available online for experimenting? I'm interested to tinker with the design and see what I can come up with - perhaps even fully 3D printed
We haven’t pursued anything further with the project, and we haven’t packaged all the files for easy download either unfortunately. Everything is in a 3-D model so it could be exported, but I lost access to my fusion 360 account when I left the university so I can try to see if I can find the models for you. If you are going to go for a higher ratio I’d have to recommend moving away from 3-D printed parts, unless you have a commercial grade printer or perhaps even a metal printer. We tuned the 3-D printer we used over many attempts so I’m pretty confident we got close to the max performance out of PLA, and we’re thinking that to make it last longer it would need the gears to be manufactured out of a metal. My number is 919-904-4831 if you’d like to text me and I will try to send you some files since it would be awesome if you experiment with it!
Yeah, I totally agree. In hindsight, there are many better alternatives in both material choice/manufacturing processes that could have been made, as well as critical design choices, like using large light-weight pulleys in horizontal arrangement in place of the gears mechanism and taking into consideration the extreme and non-symmetrical forces going through the fan and the supporting hardware. haha but yeah, fun regardless and still proud of it for getting in done during the onset of Covid. Cheers
It is perfect for regions like Iceland, Lapland or Patagonia, were no fan is needed at all.
It's like the ceiling fan in the movie The Mosquito Coast (1986). I always wondered when something like that would be available. Cool.
Haha great reference! There is a still image of that fan out there on a backwater forum I stumbled across during this project, I was looking for punkah fans. Few will have heard of it but a "punkah" fan was an old Indian (the country) invention, around 500 AD. Pretty much a slave would stand in a corner pulling a rope system, which would sway a carpet hanging from the ceiling. It's one of the first known examples of a "fan" and I wanted to put it in the video just ran out of time
My grandma and grandpa had a classical gravity clock in their cottage.
Built with the right materials you could have a VERY marketable product. I kniw i would pay big bucks as a functional Showpiece for a house... Been think of this for years! Bravo, Sir! Keep up the EXCELLENT thinking!
So youd have to reset it 32 times at night to be cool for 8 hours of sleep 🤭 .. you better crash fast and hope not to wake up hot n sweaty
Yeah I agree, it is just a 3-d printed prototype so I firmly believe it could be made to last at least an hour with the right materials and gearing engineer. Nothing that saves energy is ever as good as fossil fuel! Just have to live with that.
@@cjmugs Heavier weights, steeper gearing, more of a work out on the front end, but you could get it to last for hours. Well done, brilliant project!
Menuda pena de ventilador, no se que pensar. Que tengáis suerte con vuestro proyecto
If you made your weight shorter and wider, you'd get more time from each charge.
And unfortunately would put it further from the wall and would create more undesirable leverage unto the supporting pulley overhead. Definitely thought of it though :) and also steel round stock gets wildly expensive as you grow in diameter :P
Bag of sand for the workshop .
Magic!!!!!!!!
This will be handy for my off grid hut
I designed something better
Check my latest video
This is what I was hoping to find, awesome!
I designed something better
Check my latest video
clock system. Good idea
We want to BUY something like this. How tantalizing to know it is possible, but not available.
I'm working on similar tech, but it's an electric energy storage. Would you guys be interested in helping?
So you're next step is helping people build them on their own. Could you use K'nex? You're next video needs to be called "How to build the gravity energy fan at home with common parts and hand tools". If you take too long, I will beat you to it.
How do i get one?
What's the lifespan of the driving rope?
That is ingenious.
Excellent! Have been thinking on something like this for years! Is it hard to pull more weight and make it work for an hour or more?
Could you show/describe the pulley system more clearly pleaseee
I designed something better
Check my latest video
Все понятно истории спрашивала про энергии находятся экологически чистые материалы природы погибают растений которые учёных письма потому напоминаем вам самые часов показатели механизмы предназначенные специально нагрузки гиря тяжести скорости движения время силы даёте зарплату генераторах любой другой шахты лифта можно получить настоящее строительство 🏠 будущем электронной электрические сети не нужно сделать печки углями не понравилось непонятно природы погибают наводнение помните что людям половину суммы потерять деньги утонули 🏠 за погодой повезло ураганные ливневой какие москвичами автомобилями не правильно разрешается родителей пешеходов гибели людей которые соответствуют мог бы успеть сразу несколько организаций для будущих электрические сети Интернет помогите пожалуйста отправьте пожалуйста Владимир Владимирович Путин ?
Where can I buy one?
Great ingenuity
I'm a fan!
Interestin ? thanks
Osea... Que va a cuerda jajaja
Great job folks
brilliant
plastic gears... LOL....
gonna have to stop there.....
yeah we only had a 3-d printer. to get custom metal gears made was a few hundred $
@@cjmugs good point...
small runs of stuff like that get spendy fast.
It would be prime with metal ones ...
@@AlaskanInsights haha yeah I think you could squeeze a few more minutes of run time with a nice gear mesh. One day I am hoping to return to it with some money to play with
640 times efficient? What a load of crap.
Yes not 640, that was our mistake we re-did the math after the video was done and it is actually 67. Here is the math to prove it:
The Gravitational potential energy of the weight (25lbs) at 8ft above ground = 271 J
Gravity Fan run time = 16 minutes
271 J / 16 mins = 0.283 Watts to power our fan.
Standard ceiling fan uses 75 watts/hr at 60 rpm, so about 18.75 watts/16 mins.
18.75 watts (to run a standard ceiling fan for 16 mins) / 0.283 watts (to run our fan for 16 mins) = 67 times more energy efficient
I designed something better
Check my latest video
Hello! I am trying to accomplish something similar for a large chicken coop built into a connex storage container. We need a fan for the night time when they're asleep but need a higher gearing ratio so we can go for several hours off a single lifting of the main weight.
Did you ever commercialize the product? Are there plans available online for experimenting? I'm interested to tinker with the design and see what I can come up with - perhaps even fully 3D printed
We haven’t pursued anything further with the project, and we haven’t packaged all the files for easy download either unfortunately. Everything is in a 3-D model so it could be exported, but I lost access to my fusion 360 account when I left the university so I can try to see if I can find the models for you. If you are going to go for a higher ratio I’d have to recommend moving away from 3-D printed parts, unless you have a commercial grade printer or perhaps even a metal printer. We tuned the 3-D printer we used over many attempts so I’m pretty confident we got close to the max performance out of PLA, and we’re thinking that to make it last longer it would need the gears to be manufactured out of a metal. My number is 919-904-4831 if you’d like to text me and I will try to send you some files since it would be awesome if you experiment with it!
@@cjmugs thanks! I can likely make the 3D models myself. But interested in the paper or report - do you have a copy of that? Thank you!
More energy spent making the fan, gearbox, weights & rope than it saves.
Yeah, I totally agree. In hindsight, there are many better alternatives in both material choice/manufacturing processes that could have been made, as well as critical design choices, like using large light-weight pulleys in horizontal arrangement in place of the gears mechanism and taking into consideration the extreme and non-symmetrical forces going through the fan and the supporting hardware. haha but yeah, fun regardless and still proud of it for getting in done during the onset of Covid. Cheers
Lighter weight fan blades would've been very ideal too thats for sure
@@noahworden6201 but using this proof of concept, you can tweak it to be more efficient in so many ways. This has great potential.
Very cool...no electricity means less money and better for the environment 👏👏👏
I designed something better
Check my latest video
Gravity energy? WTF 🤣