How to Make An Easy Van de Graaff Generator - DIY Extra
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- เผยแพร่เมื่อ 9 ต.ค. 2014
- Want to make your hair stand on end? Make a Van De Graaff generator! Michael has a quick rundown of his generator build and how you can make one yourself.
- วิทยาศาสตร์และเทคโนโลยี
ElectroBoom squad!
FULL BRIDGE RECTIFIER !!!!!!!!!!!!!
Let's take you to the top!
GIMMEDAMEETA
I stopped watching him after he showed a TikTok clip in his video recently. i can't freaking stand TikTok and can't stand anyone who watches it.
@@HannTheftAudio but... its MEHDI how can u not enjoy:(
two things that might improve things for you. The first is using either a clear, lucite (plexiglas) tube or a white (rather than black) pipe. The black PVC typically uses carbon as a colorant: this makes it somewhat conductive. The other is to use a bottom charge sprayer. By adding a source of energy at the bottom roller, you can actually increase your surface charge at the top. Finally, some of your readers might be having problems keeping the nylon belt centered on the bottom roller. The point that might be missed here is that the lower nylon roller must be convex which makes that roller self-centering. If it isn't convex, it will be difficult to keep the belt centered.
Great job. I hadn't thought of using a smaller bowl to act as a coupler to the larger, intact sphere. Very clever!
Thanks for sharing this.
Doug
Got some questions. What if I want to use 2 big Ikea bowls and not make a hole in one of them. Is the hole necessary or can I just connect the top roler brush to the exterior of the bowl? Should the top roler be stationary or rotative as the bottom one? And should the bottom roler be from a different material from the top one? Thanks.
@@alexradac589 You can, but then the brush might leak electrons before they can be contained into the dome. It wont be as efficient in other words. (Also the ikea bowls might be too thick, but worst case trial and error!)
How would the extremely minuscule conductivity of the structure matter
Absolutely right
have a question. How do i build the charge sprayer and what are the fcators that increse charge amps or volts? nad how do i know if i have to connect plus or minus. nad how should i connect the sprayer?
Totally frickin awesome in its simplicity, low parts cost, and super-duper high voltage output!!! :-)
Wow - really awesome! Best/easiest/cheapest DIY van de Graff generator ever! Looking forward to building this - thanks.
+Anton Moric how did yours turn out?
Now my kids are wanting me to make one. I think all the neighborhood kids are going to come test it out. Great project.
That's. So. Awesome.
You so really steep! All people on youtube show us complex designs with belts and different rollers, but you give chance all people make this machine! Thank you w_w(sorry for my English, because im teenager from Belarus)
I want to build one! You guys should do a separate build video like your normal build videos. I am still a little fuzzy on how the bottom roller and ground work.
Simply great desing! congrats!!
ElectroBOOM!
yeaaah
Yuppp
Vivek Singh
Ouch! *BLEEP*
great job. i followed your instructions and made one just like yours and it makes 1 foot long sparks! thank you for making this video
Can you make a video on how you made it?
did it reach like 1Mv? ._.
Great video and instructions, I will try to build this with my son.
i love you man, i hope they still have these bowls
Awesome, Thanks for your time & talent.
Common mistake. The nylon pantyhose (+30 on the triboelectric scale) and PVC (-100) top roller are a good combo. Just don't make the common mistake of calling it FRICTIONAL electricity. (Antique term that really is not all that accurate.) It is more technically called pressure or contact electricity. Put some bearings on that PVC roller to keep from wearing out belts unnecessarily, as the pressure of the belt is sufficient. If you want to increase the output dramatically, wrap the PVC roller in Teflon (-190) pipe thread tape. Another tweak would be to get rid of the pantyhose grip on the bottom roller and coat it with expanding Polyurethane (+60) foam. Doing so will give you a double whammy on your belt charge efficiency while providing a good grip. The bottom brush is just to equalize belt charge since the top brush stripped free electrons from the system.
what if i use Box sealing tape instead on nylon pantyhose?
Don’t be a nerd no one needed that
Foopy * "dont be a nerd" on a video about electricity, please, BE a nerd.
Does "frictional" electricity even exist? Isn't it all contact electricity?
@@PinkeySuavo contact electricity is electrons that are transferred from one material to another due to contact. Generated electricity happens when electrons are forced into motion by a moving magnetic field. Stored electricity (battery or capacitor) is a case of free electrons of high potential waiting to move to an area of lower potential. All of them inolve the same type of particle -- electrons.
I made one of these using your design. I have an 11" globe formed by using two IKEA bowls. I am getting arcs of 15.75". According to my calculations that is over 1,200,000 volts. This thing is awesome! Thanks for posting! I will be getting the 14" bowls from IKEA and seeing if I can get a little more distance on the arcs. ;)
plz tell us the formula how u calculated it
how to calculate voltage?
@@figixoguru13493kv/mm aprox
Nice! Just put this on my projects list.
awesome episode :)
A fun looking project.
You mention grounding by using the strip at the bottom of the base. Would using the ground wire from the incoming power plug work as well?
Hi. Tnx for the nice video. What is the charge of the ikea dome with this setup: positive or negative ? What materials to use to get a positive dome ?
can this be flipped upside down to pick up small sand sized particles on the belt to collect in the bowl?
May I know what material you have used at the bottom of your cutting board and where exactly should i place it?
Thank you for sharing this. I'll make one using a motor from a fan.
is the motor from a fan fast cause maybe im also going to use a motor from a fan also
Hello, how can I recognize nylon from normal plastic, or do you mean by nylon just normal plastic? Thanks Honza
Hey,I wantto ask you about the supply we need to connect to ven Do graph Generator. HIgh potential.
Yes, I am building this contraption. I have the two Ikea bowls. I also purchased a smaller bowl to use as a base for the two Ikea bowls. Just seemed like a better way to dismantle it for storage. finding a bed roller was not easy. (I dislike making online purchase) But found one at Ace Hardware. The De-soldering braid was not easy to find as well. For a motor, I am using a power drill. (I do not have any motors on hand.) I did glue a single layer of panty hose to the bed roller. I now just need to install the pantyhose belt and then it will be time for a test run.
Who did it go?
What are the dimensions for the nylon castor bed and ABS pipe used in the video?
So good
how did you cut the hole in the bowl?
awesome!!!
I'm thinking about letting my honors physics kids build their own this year. Thanks for the video! I hope they find it when they start their research. :D
Where can i get a refrigerator compressor motor? I have searched in the internet but I could not find a motor like yours.I need a motor with long shaft and nice power.Where can I get it plz help me out.
Could I hypothetically cut a hole in the top and fill the sphere with something that I wanted to statically charge?
I think I'll do this for my physics project xD
Can we use Teflon for this belt
Greetings; one thing that you did not cover in your video is the upper roller. You only state that it is a PVC pipe. Does that roller have an axel or is the pipe just lying in the bowl?
hello sir...
nice diy video...
can this generator able to damage microwave owen or any other electrical appliances. ? ?
Sagar Bhagat well if it’s near to say a phone or so it might give you some dead pixels but a microwave is fine
Very impressive output. He's got around 400Kvdc worth of output from just a nylon belt!!
An improvement on this generator uses a length of polyethylene belt material and spaced out foil tape sections with about a 1.5 cm gap in between the foil sections. The bottom of the generator is then connected to a small 10Kvdc charge sprayer. This can be made by a small plate charger coil from a Xerox copier or laser printer or alternatively a car ignition coil run on 6-8Vdc will work.
With this improvement you've made a pelletron generator. these can easily overcome the humidity in the air.
Word of caution:
When playing around with Van De Graaf generators/ pelletrons / other electrostatic generators, understand that the larger the toroid (top terminal) the greater the output potential in Kv and greater the current. A gigantic professional salad bowl or mixing bowl (available in China town or some Korean food stores for making large quantities of Kimjang/ winter kimchi) ~35" across can build up nearly 1MV worth of charge ( 1,000,000 V). There will be enough current to do damage! If you decide to make one, do so carefully. IF you do build one you'll also need to make sure that your charge belt
also increases in size.
-----> for Pontus Welin
Van De graaff generators are potentially useful for charge spraying plants (water droplets/ fungicides/ pesticide stick to plants because of charge), power coating non metallic objects.... the list goes on. They are also useful in desktop particle accelerators for generating small interactions between heavy atoms and high energy electrons/ other subatomic particles.
actually no the sparks are just such a high voltage dc they jump the gap.
It repeats the spark after enough charge rebuilds on the sphere.
The sphere is acting as a high voltage capacitor.
The voltage will just keep rising until the charge leaks off as fast
as its being created.
The foil sections you mention, are they on the belt itself? How wide are the foil sections themselves? And where could one find a polyethylene belt?
Is there a schematic you can refer me to for this? Thank you.
The belt rotates smoothly but it is exposed to open air i.e. there is no tube or pipe in which the System rotates. The upper roller is a piece of PVC that actually remains stationary and the belt and the bottom roller are made of Nylon pantyhose. The motor is 500 rpm. The pantyhose rubs against the PVC creating friction which is the most reliable way to create charge. I have a good grounding too. Initially i had a stainless steel top load in the form of a SINGLE hollow hemisphere which only gave me sparks of the length 7-8 mm. Then i used two mild steel hollow hemispheres which were much larger in area and greater in thickness but had a bit of dust and rust on them which i tried to clean with a wet cloth. This gave me sparks of length 12-13 mm. The entire structure stands almost more than a meter tall and should give me a great charge and sparks of length at least 8-10 cm. Where am i going wrong? What should i do to get a much higher voltage? Please help me out. Thank You. :)
Zack L You need a pipe to hold ionized air (PVC is best). Make sure pickups are close to belt. Ground the bottom pickup properly. Use thinner metal for the dome
It is awesome ,Great work, congrats!!!
i whanted to bufd one for so long thanks
all done but cant seem to get a great charge... used the same method you did but don't know where im going wrong :(
Is the wire contacting the bottom roller connected to the grounded part under the cutting board? Sorry, I didn't quite understood that part
Yes. The contact of the belt and top roller builds a charge and then the electrons are stored in the dome. Because electrons aren't made, but transferred, the grounding ribbon is necessary to replenish the electrons to build a stronger charge
How u do the hole on the bowl?
i need help. is there a break down video. see exactly how things are . how they stay together and the brushes as well
How do you fuse the pantyhose for the belt??
where grounding wire/brush goes?
im was laughing at the fist bump hahaha
can u please name the objects u use and power of motor
What is that belt made up of
I mean what did u used as a static electricity generator?
Arnav Subedi it is a nylon pantyhose
How do I make the electric field?
Hi Dye, When you use this, what are you standing on so it doesn't kill you? or don't you need to stand on anything because of the ground on the bottom? I noticed at the end your friend walked by you and got shocked. I would think he could have gotten hurt.
The capacitance is low so the total energy is low, it wont kill you irregardless of what you are standing on. If you stand on something isolated the charge won't discharge, so you get the nice hair-style.
BO NES well because the time is less, even because of the high power, the overall energy is Low which should at max, hurt a bit
The charge collector brush on the top is touched or connected to PVC or nylon strip? Please share.
+Con CERN no
I made a generator like this and it works great! However, I need to explain the physics of it for a project and am having a bit of trouble. I know that the static charge is created by the triboelectric effect (friction), but I'm really confused if the charge that is accumulated on the sphere is positive or negative and how that happens. Help?
You could watch the video by +RimstarOrg on how a Van De Graaff works
i'm wondering how carbon fiber brushes would perform in comparison to copper
Hello can you please give me the list of the components
can u please say me about the DOME ("two bolls on the top")....made up of...and where could i find it...?..and what i should ask to buy.or any thing alternate we can use ..thq
+Deepak Korada www.amazon.com/gp/product/B00T5YMQAY?psc=1&redirect=true&ref_=ox_sc_act_title_2&smid=A3A17NWRINAHH8
thats the ikea bowl he is using, you could use other metal bowls or a hollow metal sphere.
Yes build one damn it
Very good info, why sphere is used, to avoid from corona dischage
I want to build one!
parts list please mike!!
What was that copper sheet used on the bottom?
CredibleCobra00 the ground brush
Yay
Good job….
I used Ikea bowls too. But I welded them together then ground and polished smooth, it was a pain. Never thought to just tape it, how funny.
Yea I didn't realize you could do that either.
Does the top bowl have to be circular, easier to find ones with flat
They do not have to be, however the rounder and smoother everything is, the better your static buildup will be
Which type of motor do you use? What is its rpms and Volt values? Ac or Dc?
It's really awesome
HELLO CAN YOU PLEASE TELL ME WHETHER IT IS SAFE TO KEEP A VANDE GRAFF GENERATOR UNDER SUNLIGHT FOR A LONG PERIOD OF TIME? AND WOULD IT BE SAFE TO TOUCH IT IN SUCH CONDITIONS (UNDER SUNGLIGHT/HEAT) ?
As long as the sunlight doesn't burn/melt any components (like the electrical tape or the power cord) you should be fine. You should be more concerned about humidity. And even if anything like that happaned it would always me safe to tuch (unless you short the power supply).
Trust me, I'm taking a masters in physics engineering
What if the brushes are not copper?
what is the roller made of? also can you make a more clear build video because i am a confused on the parts
Nylon pantyhose
When I saw this video, I was shocked!
You will be even more shocked if you build one of these.
Bad joke
Can someone teach me how to make one of these in detail im don't get it
i want to build one.
seems simple enough until you go to build it lol... what they don't tell you is centering (leveling) of both shafts are critical. other wise you belt will walk 1 way or the other. I am a mechanic, machining my own parts to get it just right. for those not mechanically inclined it is easier to buy a pre made generator.
Whats the power of motor? cause I dont have any refrigerator motor would any electric motor do fine?
Any electric motor will work.
where can i get a sphere like that ??
Literally said it's 2 ikea bowls taped together dude
is there any precaution that i have to take before i touch the generator and is it makes any problems in our body?
If you have a hearing aid or pacemaker, or any electronic device on you don't even go near it.
I have made one of these and there good fun
I’m looking for something to raise the hair on top of head not shock. What does that?
Round About To prevent the shock hold a metal object like a spoon in your hand and let the static shock discharge from the spoon. You only feel the electricity when the spark hits your skin.
I really need to build one for a project as soon as possible please get in contact with me
How much charge should we provide to the pantyhose, and how high can the generator increase the charge?
what are the sizes of the Ikea Bowls?
Áron Szilágyi I think they are 11 inches
Can a tesla coil be powered by this?
3:28 "that hurt", lol
Does anyone know whether the dome is positively charge or negatively charge?
If I'm not mistaken it is both. A negative charge builds up on the inside until the differential is to great and then it discharges in the form of a spark on the outside in an attempt to equalize and so on. I think I have that right. Its been awhile since I was in class lol
@@fredsilvers1427 normally only positive and the negative goes out trough the bottom i tought
@@DogeGames1 You may be right. It's been a long time.
Wow old video but I have a question. Why do you need to need to cut a hole in the bottom of the bowl? The brush on the smaller bowl was on the inside but the majority of the charge was on the bigger bowls which didn’t have any holes. Couldn’t you just tape the brush onto the surface of the larger bowls?
Then the charges wont go to the sphere easily due to the electric field of the sphere.
Красавчик, молодец
You are a demon in electroboom video
Woww....💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖
i want to build one!!!!!!!
I can't find a motor anywhere expect expensive one's
Do you now where to get a cheap one?
Go to Herbach & Rademan and look under fractional HP AC motors. TM92MTR2041/C and TM98MTR3198/C for $7.50 and $4.95.
eminusipi Thanks!
hi dude,I have a question. I'm making one my own but i stranded to some issues. Like do you maybe have a components list cuz i cant find all the components you used.
Is it dangerous
Maaaaaaan. I love you 3000000000000000
can someone can tell me which type of motor i need for this...
The type that spins.
Redder-ish kugelblitz i'd say that's a fair reply:)
Need help with the bottom rollers and brushes! I'm still a little unclear on that. And the grounding too :( doing it for my school project :p
A thin copper sheet taped to the bottom of the board. The bottom brush is attatched to that and ran up to the bottom roller. It doesn't touch the roller. It's just very close to it. The end of the brush is a frayed wire like he showed. The more little wires the better for the brush.
Just realized this was 4 years ago lol. Probably not on that project anymore lol
What is the bottom roller made up of?!
+Aleena Nazreen nylon
+Aleena Nazreen Plastic
the top of that is made of aluminum? or metal?
Aluminum is a metal :v
yo mamma h
I built a mini version it makes about 6 cm sparks
Can I remove the sphere and use flat plat instead?
Aloha!