How to make mini spot welding using 9V batteries and capacitor
How to make mini spot welding using 9V batteries and capacitor
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What a life saver, the amount of times I've cut tin foil too small for the baking tray. Had to throw it away and cut another piece. Now I can just spot weld some extra on.
Good for cupcakes too !!!!!!!!!!!!!!!!!!!
@@headshotzombies too bad it can't spot weld for some extra iron in the cupcakes!
🍼🍼🍼😢😢😢😂😂😂😂😂😂so funny
If only 9V batteries were free ;-)
Lol this comment is "SPOT ON" 🤣 pun definitely intended!
I think a good rule of thumb is any DIYer vid that has music but no commentary should get a -1
The electrolytic capacitor voltage should be chosen above 27, it cannot be selected lower than the operating voltage. If 27 volt DC was obtained with a high amperage battery instead of a 9 volt battery and given to a 25 volt capacitor, the capacitor could be damaged by swelling, it would be more appropriate to choose 50 volts. Also, I think that the selected foil strips are very thin and the same welding process could not be done with the slightly thicker ones. This process cannot be done for a very long time with these batteries, because the battery poles are also short-circuited with the capacitor in spotting, at this moment the battery connection with a switch should have been disabled, in my opinion. The most suitable for home may be the form of changing the winding with transformers taken from microwave scrap and applying the high amperage to the strips to be welded by hand mechanism. Good luck with.
I think so
using microwave scrap transformers is extremely dangerous - people died or severely injured from this while trying the infamous fractal wood burning “hack”. check out ann reardon’s video about it.
25V capacitor charged 27v is not a spot welder, its a bomb ⚡️💥
Not really there is safety factor in the capacitor
I think is less than 27V for the use
Yes,,, that's true,,🙆🙆😁😁
Allahu Akbar
@@rf7official923 1
I've always wondered how foil can be welded thank you so much now i can cook turkeys and anything else that needs foil welded my life is now complete.
Solder should be fine as even if you are pushing 20A it is for a split second, but the cap is underrated.
The next time I go on an 8 day Meth binge I know what I'm gonna do!
Just do a little everyday, so the fun never ends!
I did, worked great!
perfect for an alluminum circuit board! thanks!!
Are you really using solder as hookup wire? Wouldn’t that melt under the high current load of something like, say, a spot welder? 🤔 Oh and the cap is under-rated
yeah, that's the dumbest thing ever
Yeah I saw that, and thought wtf. Then I was looking at the batteries in series. 9 + 9 + 9 being paired with a 25V max rated cap.
Yea definitely needs improvement, at the very least. Good jump off idea to mess around with tho, I'd click fit the batteries together add 2x caps that are rated for 30+v and duller probes that don't poke thru things.
But the video is well overrated.
Take the video for what it is - a clever hack based on surplus materials and a bit of craftmanship. You were not expecting an industry grade spot welder allowing you to do welds on an SUV, where you?
I can't thank you enough, you saved me thousands on repairs! I was able to weld the muffler back on my truck, repaired the frame on my travel trailer, and even made a bird cage for my parrot! What an amazing idea, why doesn't everyone do this?
Yeah this really works! I was describing the dislike button
Sorry, I couldn't resist. I have no self control =)
No need to dislike. It's such a strong word.
His method still works. More power
Same here. I was building a space shuttle at my garage and all I needed was a spot welder. But the icing on the cake was the batteries still had enough charge left in it to power the fusion drive. I really wish NASA see this video.
Cool video but I think I'll just get a bigger piece of aluminum foil but still nonetheless pretty cool.. P.s. if you put one electrode on one sheet and touch the other one to the other sheet you should get a better weld as the electricity will flow from one piece to the other instead of the same piece to the same piece and counting on heat to make them stick. Thanks for sharing
I can’t believe that I just wasted 10-1/2 minutes of my life on this
Thanks for the warning…fast forwarding to the end….
Handy if you only have two small pieces of tinfoil and need to wrap your sandwich.
yep 😂😂
karl burke, You nailed it! For fat children/adults their food should be in wrappers that are spot welded closed! This way they may lose some weight. Cheers, John Australia.
@@joandar1 lol!
Or, if you are bored with watching paint dry and fancy doing something more extreme like making a tin foil pair of socks.
Laughing.
Aluminium foil swing machine......now I can make aluminium cloth......thank you so much for the video....
It is recommended to increase the withstand voltage and capacity of the capacitor. In addition, when the instantaneous discharge occurs in contact, the energy is consumed by the spark discharge and the effect is reduced. Therefore, switching is recommended using a thyristor. The breakdown voltage of the capacitor should be about 30V.
what is exactly the role played by the thyristor in this contraption? thanks in advance for the answer.
@@abedee6027with real spot welder devices, the idea is to allow the connection to be made first before electronically discharging the energy pulse, so it doesn't heat just the surface. With low powered welders though, the resistance at the contact point is needed to generate enough heat to weld.
Awesome, things like this open up the mind for other ideas .Not that multitudes of different glues can't do the same thing most if the time but that's not the point. Brilliant.
I liked it. It was far more creative than all the trash talk in the comments.
For use on a few batteries, any thoughts on just using conductive (copper?) tape, instead of spot-welding those nickel-plated steel tabs?
Most likely the tension is too much and the electrodes are too sharp. You could possibly try to parallel the 3 9v batteries, so as to have a lower voltage but a higher current; moreover, also the condenser could work below the maximum voltage parameters. However nice idea. Compliments Friendliness and greetings
You are good wachtime thief, but it really helped us that we can not make usable spot welder using this idea.
This is a great school/science fair project. Thanks for the upload!
Wow!! Barely works on aluminum foil! So impressive!!
And the switch with tiny wire will melt before you make a weld.
good video. a good spot welder must be 200 Joules and yours has 1.47 joules. thanks
It was very helpful in understanding the structure of the spot welder.
잘보았습니다 0.2t 잘쳐지나요 아니면 0.15t정도는 쳐지나요?
is your 9V x 3 cells strong enough to tac a nickel strip to 18650 cells? thanks and yeah i thought using solder between the terminals is a bad idea, and a little thicker wire to the capacitor would have been better good video
Will it work on nickel strip soldering?
good job the concept is there just may need to up the power
that can work for niquel tires? (for put it into a lipo bateries)
9 ADS in a 10 minute video? Really?
Marvin Xox would you rather him fake being the irs and take all your money? I think not😂😂 but your right that’s crazy
I didn't get any ads. Got to enjoy the song looping for ten minutes!!! 🤣🤣🤣
Have you tried it on something else besides aluminum Foil? Just curious?
works on any metal, seen it before, you just need 2 x 9v batteries, better use alkaline(Duracell/Energizer...etc) ones than regular (heavy duty/ extra heavy duty = zinc carbon). This is simple (DIY=Do-It-Yourself) welding/etching kzhead.info/sun/pr2LZLatqHd_nas/bejne.html kzhead.info/sun/p86Go7aHiHSknaM/bejne.html that type of welding maybe called Spot or Arc. kzhead.info/sun/YNZtiZaLbnOJdX0/bejne.html
No...it does not work on any any other metal except al foil....discharge current should be high to work on others
It seems the links provided show a Air conditioner Capacitor, on one and the other has around 10 x 9 volts and they are still having issues. You could use a 9V battery to spot weld Nickle strips as long as you had around 30 in Parallel(guessing). But the Batteries will get very very hot. The main reason I ask. If you check out my Video's here on KZhead, I have done Spot welders in just about every simple way you can possible do these. But I have yet to make one from 9V batteries. I have made 7 tab welders total-kzhead.info/tools/ohzN-bDShGlmb7NSrENZnA.html?view_as=subscriber I also have one more on the way, or the video will be ready in the next few weeks. This last welder #8 will be made from 6-8 x 350F Maxwell Caps in Series to give me around 18V-24V. Once that Video is completed, I will do a comparison video of all the welders I have. This is as long as I get the caps from the seller? I may even get a OEM Welder to compare with them! Would be pretty cool, if I could also make one out of 9V and test, but the system has to be stable(able to do a full battery pack). It is still a Great Video and a Great Idea!!!
+piyush kumar yes that's true
njfulwider5
This welding method use to battery connections right or Rong
What wire these
🇮🇶👍🌹احسنت قمة الابداع
اياد مهو اجنبي منين ديفهمك
رواد Now هذا انسان مو حيوان مثل بعض الناس ميفتهم .... مع الاعتذار للمتابعين من تدخل في ما لا يعنيه لقية ما لايرضيه (🐴)
If you close your eyes and listen very closely you could almost make it seem like it a different song every time it loops. Also it helps because you don't have to watch the video either
LOL , kind of like you're on the telephone to a customer support center. more interesting than the video though :)
Lithium battery soldaing kora jbe..?
did it pass a weld test?
use brass or copper electrodes, can be done with low power 12v power supply+resistor and larger capacitor with relay who charge a cap. and cut off the power supply when weld.
It may be good in schools to explain to the kids basically how spot welding works and let them have some fun without risking them.
Yeah, kids do know what experiment they want. We, in the old days, made some hot sandwich and potato in the tempering oven while the teacher was away.
Magyar a báttya
Sándor Gombai - and we wrapped our alu foil around a table tennis ball, burn it up on one point and soon had smokebombs
This thing is potentially lethal. Not good in schools at all.
@@EJP286CRSKW I forgot about choking hazard on swallowing the pieces.
If those 9V batteries is not rechargeable,it will cost more as you need to replace after the energy have worn out. Perhaps good to invent one temporary emergency use .
3x9V=27V, and the capacitor with maximum voltage 25V.
Thanks, This solves my problem of properly sealing up my leftover lasagna
The best way is to simply use 18650 cells, get ones that are out of a drill battery, usually these are capable of outputting 10A per cell. Now solder together 2 in series, and then another 2 in series, then solder both of those series in parallel. This gives you a 7.4v batter with a 20A output rating. This gives you around 148w of possible power, which is a lot. Now solder a pretty thick wire from these batteries, and you want to solder onto this a type of switch that is only on when you press it down, similar to what's in a video game controller, but you want a more heavy duty version, this means when you let go it will automatically turn off, there is no risk of it going too long for example, you can do 1-2 second easily with your own finger control. You can also get hundreds of spot welds done before the 18650's need recharging.
I think you need to read up on series and parallel connection. Putting two cells in series that can source 10A will still source 10A. They need to go in parallel to source 20A.
@@zaprodk I think you need to do some revision yourself, he's talking two in series, times two, ie. 2s2p. 4 cells in total.
@@zaprodk batteries connected in parallel = Voltage remains the same, current is added together. Batteries connected in series = current remains the same, voltage added together. So, 18650 cells that are fully charged, 4.35v let's say with 10A capacity, connect two in series the voltage remains 4.35v but the current is added 10 + 10 = 20. @Sam Mitchell add each other, not multiplied by 2.
@@HamzanMartinez I have been working with electronics all my life - no reason to educate me. A standard 18650 cell you do not want to charge to 4.35V unless you want fire. HvLi-cells in 18650 form factor is very unusual.
Okay, so let me get this straight, if I understand you all correctly here, batteries in series multiplies the voltage by however many batteries are put in series, however, put those same batteries in a parallel circuit and you multiply the supplied current of the batteries, correct?🤷🏻♂️
Add a led with suitable resistance. project completed working very good
Made this years Christmas decorations with this. Had to start the year before, but well worth the effort
How did you make popcorn in a string with a welder? 🤣😂
Are we just going to gloss over the fact that they didn’t know that 9 volt batteries can be connected together? And that using solder as a wire is horrible because it melts with sufficient amperage?
The batteries supply 27V whereas his capacitor was rated for 25V.
i've seen this done with a 12v battery, I think. Could you use any 12v battery (or even 2-12's in series) even motorcycle batteries would do.. with your same 25v rated cap & then be able to have the amperage to weld nickle strips for connecting to lithium batteries or...?
I was thinking the same thing. Except instead of batteries couldn't you just use a PSU. You could also use more than one capacitor.
Remember that you want a relatively low welding voltage, I wouldnt use anything over 30V for spot welding. More batteries in parallel do almost nothing, as the capacitor only draws a high current when connected; more batteries would just lower the current output for each one, the input current of the cap would be the same. To weld nickle strips onto 18650 for example, you want a high current for a short time. I'd recommed many more capacitors in parallel. (In that case more batteries as voltage sources would be a good thing)
@@joshanderson8938 The reason that people prefer batteries over PSUs is the limited output current. A PSU takes more time to load up the capacitor. So if this doesnt bother you, you could use one instead.
@@itsdkiller2379 @Daniel Weidhase @Daniel Weidhase I understand the limitations of current when considering a PSU vs a battery. I have actually played around with this project. By that I mean with a DIY 500w ATX PSU bench top conversion as well as 6v gel, 12v gel, 12v AGM, 12v SLA, and many many different caps. Of course you are more or less right, but I got the best results with a 4.7v 10f super cap powered by the +3.3v 24A output of my PSU. That said, I realize that some ppl won't have a super cap readily available. Especially if they are working with repurposed components. I also acknowledge the fact that my "best results" are subjective. I based my results on convenience and simplicity. My PSU is right in front of me. I just grab a cap, connect to my power supply, attach leads, and burn holes in nickel strips. BTW I annihilated a ton of aluminum foil.
@@joshanderson8938 I agree in every point. The type of PSUs I had in mind are not able to output that much current, like 3A 12V or something. A modifed ATX PSU or a high current transformer do the trick too, of course. But one thing: I would not recommend supercaps. Their capacity has a high tolerance range and if they break internally, they are likely to become about some nF. Some big electrolytic capacitors (Like 2000uF) do the trick too when connected in parallel (And the current load for each cap is low, theyll make you happy even longer)
good idea.. pretty much thought of that using a 12v lead acid battery
Do some looking around the KZhead world - There are some videos of people building a crude welder using a pair of 12 volt car batteries in series.
What is that capacitor doing, Sorry but I know nothing about electrics but I need to make this.
I think a few more ads are needed.... I found the 872 ads within this video to be far too few......
Hint. I never see ads on KZhead unless they are part of the video.
Anyone noticed how he hooked up a 25v capacitor to a 3*9V Battery pack? This spot welder can even weld itself
The voltage rating is typically for 10,000 hours. As long as you're only using this for a few minutes, you can probably go quite a bit over the rated voltage before it lets out the magic smoke.
Yes I noticed that as well 9 + 9 + 9 comes to 27 I've seen capacitors blow at just as little as a volt over the recommended voltage and plus why use solder as parallel Bridges when you can just snap each end of a 9-volt battery together or use some thicker wire
What I think is the brilliant stroke is using the solder as the wire. Maybe it will work but if it doesn't, then you have 450f metal all over
Hmm.. is there voltage drop ?
9V batteries are almost 10V fresh! So putting almost 30V into a 25V cap.... Dodgy
Can you use potentiometer for control the heat (current) based on the thickness of the sheet
Very interesting work. Keep it up.
Him: Solders battery's with a piece of solder thin as cable.. Me: How again did he get that many followers?
he bought them lol
He hypnotized them with the way he works.
pretty cool concept! would love to see a scaled up version using car batteries....just curious as to how big the capacitor would be...
Got a few big ass caps from a very old dit matrix printer that became redundant years ago. Salvaged the caps and motors from it for another project I had planned, think they may perhaps do the job damn well in use with a car battery or two.
Can i use 12/12 transformer for 24 v source ?
was the idea worth it, if I increase the capacitor I can weld more spherical aluminum?
You can get the same effect by just pucturing the two tin foils together with the electrode without any current. They will "stick" together as strong as you have shown in this video LOL
It really works... The dislike button...
Ohhh turn down for what
@@elviobeno5087 Way too many add breaks for a 10 min video
No one ever tries these, how does it not work?
You gay
Your sooo original
What if u use no capacitor
Bisa kesetrum ngga?
Nice video. This is a good video to understand the concept of it. I'm planning on using this project as a model to build a bigger one
Your the only nice comment...this video will help me build my 52v ebike battery 🔋 nice video
This is awful. You're over-volting the cap. I know it's only a few volts, but if you're going to make a "How To" video, you show how to do it the right way. Fail.
kalau pakai batre 3,7v x4bisa gk?
Is that aluminum foil?
9v × 3=27v Capacitor 25v ? !!!
Thanks for watching!! It’s possible
I think that our arabic fellow meant to point out the blatant overvoltage of the capacitor. If the capacitor overvolts it might blow up, and spew smoke everywhere. But it does not blow up because the capacitor is exposed to higher voltage for a very short period of time nothing happens.
You could also connect 2 2200uF capacitors in series to end up with 50V max and if you add another pair of those caps in parralel you get 4400uF.
Is it a cell welding machine.Is it to possible the weld the tape the cells.
If you add some more capacitors, then yes. I've tried ading more (to max cap. of 6800uF) and it almost worked. I think, that if you had 10000uF (or 10mF or 0.01F) you would have sufficient power to create rather strong welds. Remember, if you add more caps in series (szeregowo) youll increase the max voltage (sum of their voltages = max voltage), if you add more caps in parralel (równolegle), you'll increase the max capacity, and therefore create better welds. So for example, if you have only 2200uF caps, rated at 16V, youll need to have 12 of them (connect 2 in series (- to +) and repeat 6 times, then connect all negative poles of our capacitors together, and all the positive poles together as well and you should be good. Remember to remove the elcetrodes after making the weld, to avoid damaging the caps the battery and the power source(this is basicly a short circut) Miłej niedzieli!
this video is the main reason that India got its reputation.
???}
Now I can make foil shirt pants and other cloths thanks
Only weld aluminium foil?
Hi!. Interesting and practical video. Viewing uses three nine-volt batteries in series which would be 27 V but it uses a 4700uF - 25V capacitor. Questions: 1. You could increase the voltage and lower the microfarads (uF). 2. What type of sheet did you use? to perform welding.
I would agree about the cap, 35v or 50v would be better.
@@davidhaykus1568 No you could not increase the voltage and lower the uF. What you need for welding is current, not voltage.
@@EJP286CRSKW just fyi, I think that was someone else's comment, not mine. Thanks.
Wouldn't it make more sense to hook them in parallel instead of series since you usually use low voltage high current to spot weld?
MasterCollingwood that’s exactly what I was thinking
No it's the charge stored inmthe capacitor that is providing the burst of energy to perform the weld.
So one battery and 3x the capacitance would be better, but it's a lethal device and very poorly made.
now i can re;wrap my gum. TOTALLY COOL.!!
Will this work on my fender on my car,thanks
Please upload a video where you short the leads for a prolonged period of time, we'd like to see if the series connections of the battery (using soldering lead) melts or not. Btw is this a spot welder for for rejoining torn aluminium foil? lmao!
От двухстороннего скотча пользы больше.
Self carbon electric soldar kaon SA achcha hota hai bataye
What kind of a metal strip do i need to spot weld 2 or more 18650 batteries?
Wow, he really used 25V Capacitor on 27VDC batteries, i'm surprised it's doesn't explode...
Its probably why he used weak points between batteries rather than just daisy chaining them like a fuse... But yeah he should have used 50v even as long as its under it will work fine... no need to be on the limit
4:57 so what do we have here a !!!!!BOMB!!!!!
i have seen shit, but this TOPS it all !!!
but can it spotweld nickel strips, so i can make this instead of buying a spotwelder for my 18650 battery pack?
All of the adds in this video ruin everything that's good about youtube.
It can only weld aluminum foil
If he adds the more batteries it would weld something like 3 layers of aluminum But then the capacitor would explode.
This is a real game changer for the industry
Does this with lithium bateries posible
This also welds aluminium as well, though you have to pre-drill the holes first to get a good joint, otherwise the batteries will get too hot and explode, unless you are using rechargeable cells. This way the currant is much higher up to 30AMP, and use 16swg wire for linking up the charged cells, otherwise the solder used in this project will melt at first impact. So caution is advised and don't forget to ware dark glasses to avoid after burn to you eyes...
Why would you drill a hole in metal? Maybe if you were using a wire fed type welder or soldering. Resistance welding is the way to go as long as both metals are suitable to melt together and bond correctly. Also spotwelding should be done with a big enough tip size and (COPPER) to reassure the weld nuggets aren't contaminated and were heated, melted and compressurized at perfect temperature and held briefly so the liquid metal cools and the welder is safe to move to next area. Not having correct spot welding tip and or not enough spotwelds can cause Resistance especially in high drain applications. It's always best to do test welds and peel away tests to ensure the proper welds are achieved
Next time I run short wrapping my sandwiches 🥪 I’ll use this with some old chewy wrappers
Very ingenious and looks like fun small scale welding..
May I can use a Power Supply?
3battery have27v，but capacity only 25v, capacity maybe blast
Thanks for watching!! It’s possible
actually, very good made capacitors has been tested for 300% of voltage value written. example: 25Volt working Voltage has 75 Volts testing Voltage. That is called SAFETY FACTOR.
@@JSuparman yeah, but who is gonna waste $10-20 on a very good cap to spot weld tin foil. The cap isn't even needed, it's only used to make the 'spolt welder' he bulit look convincing.
So its written value on the components is not accurate based on the capacitance of the capacitor when you said that the 25 volts capacitor can carry more than 25 volts?
@@tedzcocchannel9999 technically he's correct, there is a safety factor in all electronic components, but the spot welder is unfortunately a useless piece of crap and would work just as well with 2 wires and a battery, the capacitor is not needed.
It should not be a spot welder. It should be a Aluminium foil welder😒😒😒😒
Mahesh Roy you can use it as a toy welding machine.😂😂
I'm glad he didn't FOIL IT UP !!
you need a soldering iron to do this... you could just solder whatever foil you needed to weld
LOL but you would still look stupid soldering tin foil.
Did you just use solder as a wire???
Why on earth would I want to spot weld aluminum foil together?
Tin foil hats
I just fold my sandwiches in the foil.
Hello 2 question plz is it ok for welding 18650 batterie ? And have you got a link to Aliexpress to find thé interuptor please ?
Bravo !!!! Et tu mets le condensateur de 7000F que tu as fabriqué , et tu passes de la baguette de 3,2mm ! . Bravo !!!! And you put the capacitor of 7000F that you made, and you pass the rod of 3.2mm!
So, when would you ever need to spot-weld aluminum foil?
3x9v =27v baterry 25v capacitor Capacitor 1 hour after booooom!
It explodes in less time as safe as 😅
XD this is sooooo funny! Thank you, really needed that XD
Its hard not to notice that this video has 8 midroll ads.. thanks!