How do you think the Chinese product came into existence in the first place? This is reverse engineering of a product created by reverse engineering of an original from who knows where
@@MOSKAU15 i have a feeling there's been case law regarding intellectual property experiments exceptions that people aren't just aware of and it just sounds more right in their head about a patent being absolute monopoly . It's like people who think filming in a federal building is illegal even though federal means it's public property
I'm always surprised that with all these large currents and voltages used that the smaller component modules are not damaged. Well done for all the hard work involved in this project. Much appreciated.
I love these "Stealing from China" videos. Many objectors don't realize that many, but not all, China products are commercialized amateur community, and opensource, projects. So reverse engineering these useful but simple electronics, and sharing it within OUR community, is alright by me. As for those who unsubscribed, do you think maybe, this guy isn't in support of Ukraine war, and has to be discreet with what he says? Or do you really think HE deserves YOUR abuse?
Or that Ukraine war might be a holy war or something like this? It's only brainwashing. Did anyone actually made the effort to find out what it is happening there and for what reason and who is to blame? Whatever media is telling us it is and always was a lie used for someone's purpose.
Wow this is really impressive and clever. I can't imagine the a mount of time and effort that goes into reverse engineering something like this. I really appreciate you breaking down how all the sub circuits work. You've earned my sub!
Once again fascinating! Thank you. However please be careful welding directly on concrete, especially when you cut using the arc. Concrete when heated intensely locally will try to expand. But when the heated section cannot expand it builds up huge stresses and can explode like a small grenade! Also, could you please suggest what components I might have killed on the small yellow welder using a 4mm rod 😆 I bought it after seeing your fantastic video on it and had a lot of fun with it before accidentally killing it.
It would be a big concern with a crucible full of molten metal, but not with the amount of heat energy that the usual weld spatter can carry with it. It's certainly enough degrees C, but not enough Joules of energy to cause a big explosion that would be life-endangering. But you can still damage (spall) the concrete and make it look ugly, or end up with small bits of very hot concrete in your eyes or making an unsightly burned hole in your hair.
@@kfoltman just depends on the concrete too. Concrete with pockets of rocks can surprise with the size of crater left behind. But kill? Not normally. It's just ugly and can ruin your driveway.
It depends! You can tell what went wrong by dismantling the welder machine on the workbench and starting your diagnose. I would check the 1. bridge rectifier, 2. the IGBTs, 3. the schottky diodes. You can also check the auxiliary power supply, if you're lucky, this ic LNK626 or any other TOP switch ic like TNY280 depends what welder you have etc. gets damaged and once the auxiliary power supply is defect the whole appliance stops working. Have you got a schematic for it?
@@tr_2sc1970 I know, I once repaired one with a defective PCB (broken PCB trace from being moved around a lot) on the aux power supply board. But it is a lot more intimidating, many things were totally new to me. Thankfully there are schematics of similar welders online, so it's easier to understand what is supposed to be happening. Interestingly, many of these schematics seem to have been created in Russia or maybe some other Russian-speaking country.
i bought a similar welder to that, all built up in a nice case, with leads, shipped to England and bought from a retailer with his proffit margin for around £60, makes you wonder how they do it ?
NOOOoooo.... We need shipping to be more expensive from China. Buy local. At least local companies don't want you to die. Stop funding the Chinese who want to use any funds we provide them against us. I want friendly companies / countries to supply me with parts.
Very good job, I’ve been working on a modified Chinese induction heater, in my opinion it could be a good oxy acetylene replacement for pre heating or just heating for removal of rusted components
Do you know what model number MasterCraft lists it as? I would love to be able to make the comparison. BTW if anyone can suggest an affordable option to produce a "spool gun" that I can use on my Lincoln Wirefeed welder in place of the SG100 that Lincoln markets for this unit, specifically the Lincoln 180HD Wirefeed, I desperately need to have aluminum welding capabilities and I even have the argon gas tank prefilled etc I just ran out of money before I could afford to invest in the spool gun so I'm definitely interested in any input or suggestions to produce one myself from available and affordable components from the aftermarket. Thank you in advance and I very much enjoyed the video and encourage you to produce more like it and definately the larger model you spoke of!
Well done! I really enjoyed it. I would like to see more detailed descriptions of the sub-circuits for educational purposes. I really hope that you’ll do the large version.
I am just amazed that CHINA actually made something that is not a CHINESE JUNK. I look forward to seeing the heavy duty welder you have planned Kasyan. Very well done video with explanations also fella. Spending way more than necessary is O.K. for oneself. This is for ourselves so we do all the best. A reasonable waste of funds makes one put a smile on ones face. When cutting metal with rods. One must soak the rods in water for a day, then cutting will be greatly enhanced. Keep up the great work.
Can you manufacture this unit for sale to us? Add switchable 120/240 input with settable current max inputs to allow matching the AC breaker rating available. The welding performance would then depend on the AC circuit available wherever you are using the unit.
Pirating from public records released by the governance of authority of the people? Almost as ridiculous as trespassing someone from all sidewalks in an entire city
Shipping won't ever get cheaper, we have to wait for wages to get higher. That and China is losing market share and manufacturing is beginning to move to other countries.
@1:50 is why no country should ever export over seas. Each continent should have its own manufacturing centers for all products. It wouldn't be that hard to do and it would make life simpler. That's just fact. If over seas shipping occurs its simply a one off custom job.
It will be really usefull if such device can be used for battery charger/maintainer where more than 80 amps are required. Could you please make a video showing how to lower the output voltage to ~14.8-15v and keep the high current?
Thank you for the this fine video! The concept 'stealing from china' is by it's self interesting, but you actually copy the product (no mean task) and evaluate the products strengths and weakness, and then address ways to improve it. All in a very clear and concise, well presented, professional manner. I w[ll have a look at your archive and subscribe. Well done! '
So cool. I would love a welder with more modern controls. Much like lab power supplies, until recently they have all used outdated interfaces. It should even be possible to turn it into a 5 in 1 multi-welder using an ESP32 to drive a wire feeder for mig welding and gas solenoid valve for tig. The microcontroller could also allow you to set pulse timing and ramps using the PWM output, which are important for tig welding. It would only add maybe $30-40 to the cost between the ESP32, solenoid valve, wire feeder, connectors and display. How about a series where every video adds a new feature to the welder? Adding mig in one episode and tig in another, and a mini compressor for air plasma cutting in another.
I used this scheme but my mosfet exploded after 2 minutes even though there was no load yet... What is wrong . I wrapped the primary 10 times and the secondary 4 times... Please help my brother... aka Kasyan...
So it seemed as if a Variable Frequency Drive onboard a $50 inverter welder... WOW. "ABB" should at least send each, and all their costumers a fruitcake during the holidays. Very impressive build, and a gold star for the full disclosure. AKA responsibly sourcing intellectual property via Philanthropic venture for the betterment of mankind, and for that I thank you. plus I learned stuff good from the video. BTW I heard it cost X2 to make your own butter rather than buy already churned Wich is nonsensical, and bummed me out... So c'mon how much did it cost to reproduce & improve upon the $50 Inverter?
Great reverse engineering and upgrade skills. I used to do stuff like that. Things like using the guts of a $100 chinese co2 laser tube power supply driver to power a heliodent X-ray tube head. 🤓 after my ❤😁😁😁
Wish someone was able to make one of these budget welders with actually good parts. Seems like so many of them don't work or you can run a 2in bead before it cuts out
China is one hell of innovative tool master & manufacturer who've serviced billions of lives globally, quite grateful about that. Copying is a sincere act of flattery!!! China 💪💪
Please explain what the duty cycle is when there is no load on. . ./ . . . standby I use this scheme. but the igbt and mosfet get hot and explode in 15 minutes without any load.. Thank You
Please explain what the duty cycle is when there is no load on. . ./ . . . standby I use this scheme. but the igbt and mosfet get hot and explode in 15 minutes without any load.. Thank You
Please explain what the duty cycle is when there is no load on. . ./ . . . standby I use this scheme. but the igbt and mosfet get hot and explode in 15 minutes without any load.. Thank You
Hi, could you please explain the design decision in high end expensive welders to use single IGBT module that contains as many as 12 IGBT integrated within the module? is there any other benefit aside from compactness?
The original costs $50. Why bother to copy it? I don't get it. OK, it is interesting and a little fun, but maybe you'd have as much fun copying something more expensive and selling it.
hello Sir, great work. I would like to know the test procedures you carried out before giving the igbt complete 310 VDC. I mean did you gave igbt's less voltage at first to test whether the switching and current feedback is working correctly or did you just directly gave the inverter the entire dc voltage and started the inverter. If you do know a method to test without giving the igbt's the entire voltage, please let me know.
Saludos excelente proyecto para realizar hize uno con dos transformadores de microondas y vi tu canal realizare el proyecto haber como me sale ya que no hay lista de componentes 👍👍👍👍👍👍
Have you ever tried resonant topology for the welding instead this hard switching welder,it has more power density and reliability than common inverters
