1600 Volt Washer Launcher

[xXDarkMidnightSunXx]

It looks like the washer hit your leg then went onto the left side, I hope your leg was okay. Very interesting creation you got there by the way, looks like fun.

[TXs14]

Do it with a FULL can!!!!

[rosalesrob1]

hey bobdavis321, I can make my own coil but I lack the experience necessary would it be possible for me to pay you to make me a two capacitor instead of an 8 capacitor washer launcher? and if so how much would it cost me?

[bobdavis321]

@rosalesrob1 - Sorry I do not have time for making more of these. However I am working on making a second flat coil so I can have a dual washer launcher. Its coming soon to YouTube!

[oranges0the0fox]

** leg almost gets taken out** what does he have to say? "well that was interesting" smh

[TheDreadlocksRasta]

It would be cool to see that can get flattened at low speed!

[sallymaggiespotty]

The announcer misspoke about the voltage at the beginning, ruining the credibility of the clip.A serious beating would put a stop to this bullshit.By the way, what the hell is a grown man doing wasting time on this stuff??

[gforce4all]

Wouldn't it be easier to just step on the can?

[chupathingy99]

So that's just an electromagnet that instantly repels the washer when voltage runs through it? Neat!

[bobdavis321]

@chupathingy99 - Yes, aluminum actually repels a magnetic field.

[TehAndrewRyan]

Acupuncture with that device? Nice..

[stimps90]

Dude love the shoes, just what you should be wearing when there is that much power about, and voltage! Lol safety sam!

[TheSolarmike]

Now you should get hundreds of Maxwell 'boostcap' 3000 Farad 2.7 volt ultracapacitors! And scale it up

[jlnew2]

cant you flip the current in the coil and put the can underneath - crushing it against the ground?

[brandonhughes7]

what if you hucked that thing up to a telsa coil

[bait28]

lol. i tried building this for a demo in class. My capacitor set caught fire. turns out, they weren't 240v after all.

[WhitetailBowmaster]

GEEZUS

[emosRULEtheSCHOOL]

im not sure if this is a redneck joke or a smartkids joke

[lilschwoeg]

he sounds like steve carell haha

[160090]

i can do more by stepping on it

[engelteir]

COuld you put the disc on rails or something so it flies straight upwards, get a much more reusable device. ??? maybe less dangerous too.

[redmoder]

forgive my stupid qustion but what is the iron box in the middle in the middle 

[CrazyMonkey124]

Don't connect the ends with your fingers :P.

[HoorayForExplosions]

you should do that same thing, but with a soda can that still has soda in it...

[onthegaszr2]

i dont understand your machine, it works great tho

[Sprekitek]

Ummmm.... you didn't just build that thing for fringing washers in the air in the driveway did you?

[BEZZA427]

lame, gay nerd shit , why not just stand on the can if you want it flat, next time make a video with explosives, just as dangerous for you and much more entertaining for me.

[twiztid83222]

more safety

[edeikuliu]

woah thats really dangerous

lol

[tehsimo]

so what is the point of this device?

[BFMVpwnage5168]

@tehsimo fun and entertainment

[zker666]

how much do those capacitors cost each? Because i am designing and building a new can crusher/washer launcher/coil gun power supply cap bank and i just wanted to know what im looking at for caps

[TheAnimal562]

this is cool but im having a bit of a hard time understanding the point of this device.....

[TheAnimal562]

this is cool but im having a bit of a hard time understanding the point of this device.....

[GTi]

I like your Server Case ;-)

[moreczbogdan]

the thing you are Launching is iron or aluminium ?

[TheSanadian]

your dumb and at least need saftey glass

[TheSanadian]

your dumb and at least need saftey glass

[TheSanadian]

your dumb and at least need saftey glass

[TheSanadian]

no offense but your dumb at least get like saftey glass i do crazy shit all the time but this is like stupid lol

[Blaze1024]

That was fun, Not taking into consideration the cost of large capacitors and the expense of building the power supply, It's still kind of an expensive and dangerous way to crush cans. Lets say at 11 cents a kilowatt (1 kilowatt for an hour) how much does it cost you every time you crush a can.

Seriously, you have to much time on your hands. If you care to do something useful with your time I have a vintage tektronics 465 with a defective trigger board care to trouble shoot it for me

[Blaze1024]

That was fun, Not taking into consideration the cost of large capacitors and the expense of building the power supply, It's still kind of an expensive and dangerous way to crush cans  Say at 11 cents a kilowatt (1 kilowatt for an hour) how much does it cost you every time you crush a can. Seriously, you have to much time on your hands. If you care to do something useful with your time I have a vintage tektronics 465 with a defective trigger board care to trouble shoot it for me

[Blaze1024]

That was fun, Not taking into consideration the cost of large capacitors and the expense of building the power supply, It's still kind of an expensive and dangerous way to crush cans Say at 11 cents a kilowatt (1 kilowatt for an hour) how much does it cost you every time you crush a can. Seriously, you have to much time on your hands. If you care to do something useful with your time I have a vintage tektronics 465 with a defective trigger board care to trouble shoot it for me

[Blaze1024]

That was fun, Not taking into consideration the cost of large capacitors and the expense of building the power supply, It's still kind of an expensive and dangerous way to crush cans, Say at 11 cents a kilowatt (1 kilowatt for an hour) how much does it cost you every time you crush a can. Seriously, you have to much time on your hands. If you care to do something useful with your time I have a vintage tektronics 465 with a defective trigger board care to trouble shoot it for me

[andymcdo]

oh my god

[cwbh10]

Hey, now isn't this just a tad bit dangerous? just wondering :/

[Serpico261]

when i was akid, i used to play with capacitors of a camera. i build my own electro shocker and i get a shock by myself and i swear to you, after 800 Volts from that capacitors i never played again with that stuff that fast

[jackel44]

were do you get a flat coil at?

[bobdavis321]

You have to make your own.....

[cumesoftware]

Why don't you use a higher wattage resistor? The caps might charge a bit faster, because resistance increases with temperature.

[bobdavis321]

My newer versions have a much bigger resistor.

[cumesoftware]

@bobdavis321 OK. Thanks for letting me know.

[sciencoking]

jesus freaking christ... lol

watch out for that brick, dude!

[rarbiart]

standing aside, no gloves, not even shoes and i bet no security glasses agaist shrapnels....

[vagitoe]

@rarbiart Security glasses? What are you, British?

[TheWhizzkiduk]

You forgot to mention not to try this at home ;)

[bobdavis321]

Great Idea!

[NTComputer86]

if i ever come across some massive capacitors, i know what im gunna do

[wrxsavvy]

your nuts! Can I say something? Your smart enough to create these wonderful experiments, but you forgot about safety. I cant believe you ignited it standing right there.

[bobdavis321]

Thats nothing, I blew a voltmeter to little pieces. Have you seen me destroy the apple and the pumpkin?

[tomdamonkey999]

you should build multiple coils and make a gauss cannon, that would be sick!

[Aussie50]

that is awesome!

are those DC or AC capacitors?

I have just acquired a bank of 28 6800mfd 450V DC caps from an old Danfoss VLT Drive and I'm wondering if they would be suitable for an experiment like this?

[bobdavis321]

They are DC caps just like yours. Have fun!

[Darshenstein1]

thats 19,278 joules !! this bank is only 3,700

lucky you. that would tear a can in half, make a great railgun, should even explode a watermelon!

[bastabosta]

The wires used has a LOT OF INDUCTANCE and ruin part of the energy usable. This stuf MUST be very closed to the coil. I enjoyed the video. Edgardo Maffia

[triggerhappy77707]

Very fun indeed! I did this with my smaller capacitor bank, it is 800 volts at 1950uf, which is 624 joules. I can get a pretty flat soda can doing what you've done, but not quite as spectacular as yours. Good job!

I am going to put a new bank together, almost 5kj! I need an SCR that can handle about 15Ka at 1.6kv though. What capacitance was your bank, and what SCR? I need a good SCR bad :P. I also need to go ahead and make a resistive voltage divider as you have.

Good job, Mr. Davis.

[bobdavis321]

For that kind of power I would use two bolts with a plastic spacer that is tied to a string like I did on the 5 KV version. This was 8 x 3700 uF at 400 Volt capacitors, so it would be about 1800 uF at 1600 volts. Ths SCR toped out at 1600 volts.

[JoeJoeTater]

That is really impressive. Certainly the flattest can I've seen. Where do you get capacitors like that anyway?

Also, thank you, for saying demonstrate instead of prove.

[bobdavis321]

I bought them at the Rochester Hamfest. There are ones like it on EBay.

[bobdavis321]

The secret is that aluminum actually repels a magnetic field. The coil becomes an electromagnet when 1600 volts is applied to it. The aluminum washer sitting on the coil rises upwards and crushes the soda can. See my other washer launcher videos to get a better view of the components.

[bigtank2185]

Seems a little overkill for smashing cans...but it's a GREAT overkill!!!

THIS is geekdom at it's best!! I love it!

[bobdavis321]

Yep, its lots of fun!

[azh01e]

that was very flat, cool video.

[steveboutin]

i really think what you're doing on here is awesome, and i'm not trying to tell you how to live your life, but you are going to get SERIOUSLY injured doing this one day. just please, when this happens, post the video on youtube.

[bobdavis321]

I am more likely to get injured in a car accident. But I was once hit in the head by a flying washer.

[sargentpsycho222]

i have friends in jamestown. we could use your insight.

[bobdavis321]

What type of help do you need? My gmail address is bobdavis321

[zombierobopirate]

i wanna see washer vs cinderblock =]

[paulsu27]

Bob, your a true nutter. But I like your attitude! What man would not want to do experiments like this, given the time and lack of nagging wife/mother!

Why do you want to build a capacitor bank to produce 1600v? Because I can!!! Why do you want to flatten cans by wiring it up to an electromagnet? Why not???

Love it

Laughing my but off!!!

[wmatv]

XD it nearly took your leg off

[laurdy]

it should be possible to double the voltage to 2400 volts if you use the capacitors in a charge pump arrangement

[FutureScientistOfUSA]

what is the thing in the center

[bobdavis321]

Are you referring to the Microwave Oven Transformer (MOT) ?

[FutureScientistOfUSA]

ah yeah, in between the last couple of capacitors

[laurdy]

now try that with a full sealed can!

[bobdavis321]

To messy, who will clen up the mess???

[FutureScientistOfUSA]

your ho

[fnaguitarplayer9]

i bet they are, i guess that is the reason for the high shipping. i go to a vocational school for building construction and there is a electronic class up there, and i'm gonna try to get some caps for free there. i got a whole box full of microwave caps last year, about 10 or so.

[bobdavis321]

10 Microwave oven caps would only be 20 uF. I have thought of using them to but it would just take too many of them.

[fnaguitarplayer9]

yeah i know. and another problem is the internaly bleed off resistor. i mainly use them in series on jacob ladder setups, to put it in resonance. i origionaly planned on using them on a tesla coil, but they overheated, i now have 4 .003uf 35kv caps i got from electronic goldmine for 2.50 a piece

[fnaguitarplayer9]

hey thats impressive!!! i found a place that sales caps similer to yours, 4 for 25 bucks, they are 3900uf @ 450v, i'll probly be ordering some in a couple months or so! the place is alltronics (dot) com

[bobdavis321]

Thanks I paid around $67 for my caps.

[fnaguitarplayer9]

that really ain't to bad. this place charges way to much for shipping, like 15 bucks for a 25 dollar order!

[bobdavis321]

Well those capacitors are heavy.  They warp the case when I pick it up.

I am now working on a 2500 volt model.

[fnaguitarplayer9]

that does make sense, i figure the huge caps do weigh alot. (i didn't think about that) i go to a vocational school for building construction, and right down the hall is the electronics class, i'm gonna try to get some big caps for free!

[FutureScientistOfUSA]

how does your thing work, what does the capacitor do.

[bobdavis321]

The power from the outlet is limited to 15 amps. The capacitors can store and release many hundreds of amps. That current is unleashed into a flat coil that has an aluminum washer sitting on it. The washer then takes flight.

[GNBrews]

Very cool Bob! One bit of safety advice that a lineman friend of mine passed on to me is that when working with high voltages, you should *never* use both hands when measuring or otherwise working inside a unit. Keep one hand in your pocket.

Of course the reasoning behind this is that hand-to-hand creates a circuit directly across your heart.

Stay safe, and keep making these awesome videos!

[bobdavis321]

You are correct! I should have had the meter connected from the get go, and sticking my hands in there is very dangerous! I have re-marked the built in meter so in the future I will use it.

[sharpandpointy123]

woo! first comment and man that can..... i wish you lauched the washer to lol

[bobdavis321]

At 800 volts the washer flew 30 feet. If 1600 volts delivers 4 times the power would that result in 120 feet of flight?