How To Make Mini Spot Welder Using old Microwave Transformer 

loan mower :D:D:D

@@tomik9868 i wonder why he did not just buy normal spot welder 🤔🤔🤔🤔

@@sqlmrq_ maybe it was that expensive it is not worth it? But usually the cheaper ones have small transformer( about 3times as small) so it is not best for the baterries but good enough. This solution with better circuit will be cheaper and better

@@tomik9868 maybe maybe...

@@tomik9868 i have 6 cells and one died on my eyes and i dont know why. It doesn't charge, do you know why?

Great comment

Great comment

cheapest way is to cut a small piece of pvc pipe and stick it there

Great comment

João Palma ola 616655388

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-lCsjn3dsCHA.html

Great comment

Agree, he has some great ideas and if you know what you are doing can always improve them.

ebuTuoY f hmm v

also, isnt it dangerous to touch the metal while welding ??? cant you get shocked ??

I agree about the good ideas this channel offers, but I'm sorry to disagree with you about those safety issues you mentioned. I think you are being a little too cautious for this kind project. Not everything needs to be idiot proof! It's not as if this contraption was designed to be sold, as is, to the average consumer. I don't mean to dismiss your good intentions, but I feel that too much caution may eventually lead to a paralyzing effect on the motivation and confidence of the prospective builder. And that is detrimental to the goal of spreading the word about the joys of tinkering and the satisfaction of having built something yourself. Here's my take on those issues. - Earth(ground) connection to case: Unnecessary. All primary AC connections are solid and well insulated. The ground would only be useful if one of those soldered, insulated connections came loose. Think about that for a second. If those connections were damaged to the point where one of them comes loose, the whole device would have taken such a beating that perhaps plugging it to the mains wouldn't be such a good idea at all. Common sense would kick in, one would hope. If not, --> Darwin Award! - Using the other pole of the DPST switch for the Neutral wire: Again, unnecessary. When the Live wire is disconnected by the switch, the Neutral becomes irrelevant. Having it connected without interruption to the input jack is actually safer, and saves you time and effort.

@Robert Cartier First I will answer you'r response, and then I will extend my opinion. First - grounding - it's essential you have a transformer, that works in unnatural way - it's designed for so much watts and amps, and for tight winding(when this transformer has been build was with 2 windings, winded tightly, so some of the vibration are canceled, also is mounted on rubber). So from vibrations of the transformer, that has not so tigh winding now, when is heavy loaded(not like previous when it is in intended operational mode), then the primary winding can scratch itself, and expose a live connection to the metal lamination, or/and on the case. Other case is some of the wires inside, for whatever reason becomes live and make case live too. Second - I don't know where you live, but this plug (schuko) don;t have polarity it's reversible, not like UK plug, so how do you know that the live wire is disconnected from the switch. After you'r comment I realize, that these flaws are so much dangerous than I mentioned in first place. This build will be attended to build by people that don't understand what are they doing, and make some mistakes, that are DANGEROUS FOR THEIR LIVE, so creator must try to build safe builds, and must follow basic safety rules. Plus these two things are soooo easy to resolve(split existing cable in 2, and run it thru the switch, and making ground wire from the connector to the case) I don't see a point why you can't understand that they are soo important for safety, especially for this kind of project, that is watched and build by normal people without knowledge, just following the steps in video, and how these rules for safety will cripple the creator(builder).

Agree totally!!!

What's the exact connection of grounding wire in this project? I'm a beginner and I will do this

@@philipmurray4065 in the chassis or on the transformer, if it has an electrical loss it does not electrocute you ;)

@@philipmurray4065 qsl.net/cx1ddr/laboratorio/555.htm Monostable - t=1,1x(R1xC1)=1,1x10000x0,00047f= 5,17seg R1=preset10k C1=470uf

Ezequiel Gembi so ok I have a question if I have two transformers in the same project. One is this microwave transformer the other is smaller one like 10v ac transformer to power the timer card I bought on aliexpress, can I use the same ground cable on both of the transformers?

@@philipmurray4065 Yes, the transformer plate is connected to ground along with the cabinet chassis (if metallic).

Mysterious Creator آپ.جو.کام.کرتےہوئےوہ.اپنی.آواز..میں.بولا.کے.بتاؤ

@@masoombacha630 "The work you do while in your voice .."

Kadir Keskin helal olsun sana boyle devam enes batur izleyecegine :D

Bende 14 yasindayim

HN

İbrahim Keskin nhdusglcjmdkvj

Hebele Hübele v

Same here, I dunno where to buy something similar :/

For example?

Marc Berg Thanks, I think that it will help me A LOT 😊

Thank you, friend

I have created my own perfect timing module with which you cannot only adjust time of preweld, delay and weld, but also power of the preweld and weld. It is programmed in Arduino and very stable. Visualisation of all parameters at once happens on a tft screen and parameters can easily be changed using two rotary buttons. One for selecting a parameter, the other to change it. Parameters can also be saved so you don't need to set them everytime... it uses a random fire SSR for adjustable power and it's far more better now than those sunkko trash welders from China. Prewelding with less power avoids those annoying sparks! The final weld can then be done with full power...

Would be better, but the plug/socket combination he uses does not really match so he wouldn't have a ground connection anyways.

Yes, Connect PE protective earth it's very recommended :-D

It was an ground wire connected to the case, but he removed it...

Kak se raboti s izmervatelen ured

Nice

Literally exactly what I was thinking while watching this. Also, I think it's really important that you put some sort of grommet around where the main power cables come out of the case. There's too much risk of the case cutting through those wires no matter how round you make it right there, especially because it is being articulated from there.

the concept of " tiny spot welder" is new. And I was among the first to do this " tiny " concept. thanks for your notice.

Alex - Umm, I doubt that. I made tutorials 5.5 years ago on how to take apart microwave oven transformers and rewind them, and then I taught Grant Thompson how to make a spot welder and arc welder (check the comments he credits me), and even that was like, 4.5 years ago. You put up your video like a year ago.

WHAT IS THE MEANING OF "TINY"? U ARE USING A HUGE MICROWAVE OVEN TRANSFORMER. THAT IS NOT TINY. IT IS A BS TITLE TO GET PEOPLE TO CLICK.

comertial spot welders are mush biger and make larger spotwells this one wells smal tings like batteries

Your spotwelder is no were near beeing tiny, and not suited for battery spot welding...

SwapnilNimbalkar

Great comment

@@ZbigniewSiwiec ij J

👍🏼

Great comment

Yeah

Probably the best comment i have ever come accross

Wasantha Wimaladharma because YT, he has to do something different to have more view BTW, it's fun

With a timer you know when the french fries are ready...

It's because you always want the same result and if you don't use it you might press the button to long and burn thru the cell

I believe he used it for two reasons. 1, not to burn up the cell he is welding to, and 2 as a safety feature so the machine doesn't run for too long.

اتعي

A 220uf would be just fine

Walter Green Use a 2.7volt 500F super capacitor

he ís vietnamese and he doesn't understand english

Make it easy, if you from the US, you'll know the CN warehouse

and thats how you buy the timer module

CreeperGuy555 i dont know

Make it easy you buy on banggood

Not needed, for the same reason it doesn't need it when used as originally intended. It doesn't get hot enough.

Did you see how much room there was in the case. Where would a fan even fit? Plus it isn't needed because the transformer is only running for less then one second at a time, maybe a couple times a minute if your fast. It doesn't have time to get hot.

Soryn4volt He lives in viet nam! You know Vietnam is still a poor country. Poverty requires taking advantage of the things around them to save money. So called creative. As you need something, the order is there.

is not imporatnt whre he lives, the same whelder it will not work in Germany ,whitout the timer, other people intented whit the MOT , and did not work becouse the timer whose missing :) ARE YOU THE REAL Kim Jong Un , don´t you have a country too lead ? :) :D

Kim Jong Un They think about your country. Just like you think about us :))

Viet Phamquoc--> rong.... the comunist people can not have theor own thots

Soryn4volt really?? Lol

chris firpo me

Twój Stary Ur blacker then my future

thanks

wut

Twoja stara

Great comment

Did you ever meet him?.

Great comment

Great comment

unless this transformer is from before the 70's, you're safe

Конечно! Вам из сельской местности виднее...

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