Classy ghetto .. I like that :) Hey, when I watched my video again I looked at the tape. I agree that leaving the coils exposed is better, if not just good practice. If I were to do it again, I'd probably just use a single wide wrap of tape in 3 areas to keep it from unravelling. I'm glad to hear your building your projects .. excited to learn from you my friend!
Why instead of rewinding the second coil, reuse the second coil that was originally in the transformer...? Like, just reversing it with all the parts and coils originally there.. *-EDIT: R.I.P. Man, truly were a legend.. Hope the journey you’re on now is wonderful and breathtakingly awesome my man.. Gone but never forgotten. -*
Stazick 5 I didn’t realize this when comment was posted, and just haven’t edited it.. I had found out 20 or so minutes later about the paragliding accident...
The stick welder and metal melter are two different modifications, so the power will be different for both. Metal melter is up to around 800 amps at 2 volts, and this stick welder is up to around 100-120 amps at 30 volts.
Great instructions Grant! I like how you're honest about showing the best ways you found that worked, implying that you tried some ways that didn't work as well first. Looking forward to part 2!
I built with 4 MOT, and got 36 V AC, 250A. Added a 220v AC cooling fan, a selector swith to get power from 3 trans or 4 trans, a 40A tripper, and one AC Power Indicator. Welder Works fine with 3 trans itself.
I'd never heard of that before, but I just looked it up and I'm sure it would work. To modify it, I'd just use thick electrode tips rather than 4 or 6 gauge wire. Something like 2 gauge. I'm sure it would work easily. Thanks for your comment.
I mentioned the original video to a friend and how i wanted to try it, they gave me two microwaves and said 'weld me something to put in my garden' Great videos! I'm patiently waiting for part 2.
Thanks Steve! Most of these projects I've had to try 3-5 times before I even make a video just to get some experience in doing it. So yeah, lots of fails in order to get a success!
The number of turns is critical. Heavier gauge is better, but anything over 8 awg won't fit .. so I think this may be about as good as it gets when using a MOT transformer.
Thanks for your comment William. Do you have experience refurbishing and rewinding motors? I'm interested to hear what more you know. So far I haven't encountered any adverse effects from reduced eddy currently. My understanding is that it reduces the efficiency a little, but that's a sacrifice I was willing to take.
Congrats on your new subscribers. Actually the earlier attempts failed because I tried a single MOT with 28 turns of 12 awg on 120vac and the insulation melted (for obvious reasons). This setup hardly even gets warm after burning 10 rods in a row :) Great duty cycle I'm happy to report! I'm still a fan of the electrical tape, but respect your opinion. Looking forward to your next tut!
Awesome Jeff .. thanks again and I'll be excited for the Scariac video as well. Should post 2 weeks after part 2 .. so about 4 weeks from now. It's really quite simple science and I'm surprised nobody has really done it before.
8.36 mm2 - compliments of Google :) Number of turns determines voltage. Gauge of wire handles the current. Bigger is better, but any bigger than 8 gauge won't fit in the transformer, so it's a compromise.
Thanks for your suggestion. My projects are made from what inspires me and what I'm passionate about. This week it's Microwave Transformers. Next week it will be potatoes. Random is the key word my friend, so stick around and I'm sure you'll see something you like?
Grant thank you, Ive just found your channel and found myself instantly hooked. As a kid I was a poor student and now at age 40 I am a sponge for education. Physics, chemistry, every topic you've covered has a real world application (2 personal favs HHO gen & the scorcher) I hope you cover more in the future on HHO with emphasis on the high frequency low voltage input. I will be happily waiting for you to cover more great topics.
Awesome suggestions about the DC welder. I just got 3 car batteries actually for that very purpose :) Have you ever made your own welding rods? For a TIG welder, how would you supply the gas?
Wow. I took a welding class in college, and I have often wished to pick it up as a hobby. I'm very tempted to try to recreate your work in my garage. Great video! Can't wait for part two!
Do you know any projects using cathode ray tubes? There is a little wire, some capacitors, and a CRT in the monitors, but I'm not sure yet what you'd use it for. There should also be a flyback transformer, and I know a few projects those could go into. Any ideas will be considered.
Better off buying one for your own sake unless you really know what you are doing, another reason would be the need to change current and/or voltage, you need different strength to it depending on what you are welding..
I agree with Nicolas, give the fans what we want! A two minute video of your favorite stuff, music etc., fade out with the family waving goodbye, simple stuff. Like, what do you think of the first 3-D printed car coming out soon?
Thanks for the great idea! I wish I could be as innovative as you, I'd save more money. This idea has allowed me to really begin to learn how to weld, without having to dump $500+ on a Hobart or other welder.
If you're into RC, the old secondary wire used in older, larger microwave transformers is perfect for rewinding fried outrunner brushless motors, it probably has a mile of it in the coil if unwound. Newer, smaller microwaves may use aluminium secondaries, not good for much, so make sure its copper.
how is it holding up. did the 8 gauge last longer than the 2 gauge or did it melt too. i've bin thinking of making a graphite ARC furnace to melt iron sand and maybe make steel.
1) Why do you not use the original secondary coils? 2) How do you determine how many wraps to make the new secondary coil? 3) Any idea how many amps this is? Any response would be appreciated, I really enjoy your videos.
Winston Jordan You should use an amp clamp meter on one of your output leads and you may increase or decrease the turns of the secondary acording to your needs
This is awesome! I must say this is a perfect example of great up-cycling. This in turn could lead to better fabrication of things made from up-cycling what would be considered waste. I thought about getting myself one of these one day soon as I could fit it in my budget. Now I can build one these things at low cost. The value of this information is really not measurable. I will never have to go without a arc welder again because of money. Thank you sir for the inspiration.
+TheCompute101 But why have two welders, when you can have three? Or use the third as your junky one that you loan out to people who don't know a welding arc from a story arc.
because this one you can turn into a plasma forge to melt just about anything. pour steel into a mold (he has a video for that too) and you can easily make lots of stuff.
amps is how much energy is in the wire volts is how fast the energy flows threw the wire also theres a balance with a transformer if you want more volts the amps have to equally drop and vice versa the reason you need to rewind the transformer is you want high amps not high volts, m.o.t. put high volts low amps you need to amps in order to weld so to speak ive made things like this before.
GA Drache Voltage is more like the force that pushes the electrons through the wire and can better be described as electrical pressure, not so much how fast the amps flow. It can also be described as the electrical potential between 2 points.
Still not a very good answer. I want to know what/why the different amount of whinds in the 2nd coil make it different then the primary and why it needs to be different
Well its hard to understand, in transformers they are either step up or step down, in most cases. That means that the voltage is either increased or decreased. For example, you have so many turns of wire on your primary and you put 120 volts onto it. The voltage flowing through the wire will cause a magnetic field to be created, the magnetic field will then induce voltage into the secondary winding. To step down your voltage you use less turns on your secondary than your primary. To step up your voltage you increase the number of turns on your secondary compared to your primary. However when you step up or step down your voltage, your amperage also rises or decreases in a opposite manner. When you step up your voltage your amperage is reduced, and when you step down your voltage your amperage is increased. That's why, in the second part of this video, he can put 240v into his primary windings (2 transformers) and have 37 volts out of his secondary, but his current is as high as 200 amps.
not likely, im guessing your microwaves are rated for similar wattages (here they're 1200 ishh) and its really the wattage that's holding one of them back
he is using an electrolyte in a tub to power his. i believe the transformers are DC with an inverter in the loop in the microwave, so you will need to convert the AC current to DC before the transformer. if you can push 240V DC to it, and it handle the load without catching fire....... it should weld. I weld at 40amps most of the time (1/16th rod) however when using 1/8th rod i have to push more of 90+ for 1/8 steel.
A suggestion on the vice work. Try a set of "soft jaws." These can be as simple as two pieces of aluminum sheet metal, bent ninety and placed on each jaw prior to clamping. This way the part is pressing against the softer, rounded corner, aluminum as opposed to the harder, sharp edged, steel jaw. On the complicated side, I've seen new jaw forms machined out of aluminum or bronze that fit parts exactly. That's more than most people need.
I feel like microwave manufacturers watched this video and said, "we're not letting anyone get our primary coils!" and thus how adhesives began to be included in the transformers, I have already wrecked 2 transformers trying to get them apart.
Hi Grant, I'm 71 know, and worked as an Electrician since joining the Navy at 18. My work was always Maintenance Electrician. Repairing manufactured electrical equipment .Your at more of R&D projects. The pole peaces on the xformer could be solid iron, with large circulating current, they are laminated to reduce this current, to multiple smaller currents.Tack welding or clamping the end of the pole, allows a complete circuit, for the Eddy Current, and your right, it's a loss you can live with.
I didn't know you could MMA weld with AC. Learn something new every time I watch one of your videos :) For DC, You can put 2-3 car batterys in series, as long as they have the CCA. Use some fence wire wrapped round a large form for a variable resistor. Surprising how long they last! I've been thinking about making an AC TIG, for ally. This might be a simple way :) Looking forward to the next video.
If you want to DC TIG weld with a homemade welder or AC buzz box, then what you gotta do is make a 5 phase bridge rectifier (made of five 35 or 50 amp rectifiers screwed over a heat sink or aluminum channel) and connect it to a choke (you may connect a capacitor to a choke, but it's not necessary since the arcs will be stable, anyway). The choke must then be connected to a TIG torch. In DC TIG, the torch must be connect to the negative diodes to get DCEN. A single phase bridge rectifier can be made with 4 diodes, such as the 1000 V by 10 amps that you see on Ebay (if you connect 4 of those diodes altogether, then you get an overall wattage of 40 kw as a single phase bridge rectifier). Homemade bridge rectifiers may also be very handy in case you wanna build a wind turbine.
Please keep all of his tips to help inspire us. If you want to take it down I understand, these comment dont help. But please keep the videos on an sd and share them. We will need them at some point or the kids will. For a better society.
I've gone through 6 microwaves trying to find one with a transformer that is big enough to hold 18 wraps of 8ga wire. None of them could. What am I missing here? How can I find ones big enough?
Use this the same as you did the THHN wire. Wind the bundled wire around the armature you made. Make your connections with Silver Solder when possible, it makes a good high current connection. The coils should be coated with motor varnish, to hold in place.There are several types of insulating paper. to use around the pole peaces.
If you have PVC against a sharp edge you get cold flow, in essence, the plastic moves away and creates a short. It also provides some extra insulation.
When you're winding the secondary coil, are all three layers wound from the bottom to top? Or is the second layer would from top to bottom? Does that matter?
With high temperature 12 gauge wires, you should get a total sum of 23 turns (24 could be achievable) for your secondary coil. I recommend changing the insulation of your wire that's rated for 300°C.
I got yet another batch of some questions that I really need answering: 1. Can this homemade welder of yours melt aluminum cans and copper wires completely? 2. Can arc welders that people usually buy in hardware stores melt aluminum cans and copper wires completely? 3. Can both the dc and ac converter welders melt any kind of metal and if they do which ones?
Was the purpose of wiring your own secondary coils so they would be made from one continuous wire thereby connecting both coils? I'm guessing splicing the two original secondary could would not work? Also, what if you were to wire up 4 of these? I understand it would produce more power but is it just an overkill or should be done if I have the parts? Serious answers please...
What happens if you do not meet the goal of keeping the primary in perfect condition? Would you be able to successfully still be able to use it with a few nicks exposing the aluminum wire?
+Chance Drake depends how bad you nick them. you can touch them up with enamel but i you broke the connection it will be very hard to fix. also if you nick them very badly that area might generate heat and you may loose performance.
You are correct about the shunts. A better method than shunts is to add extra turns to the primary, but copper is more expensive than iron and manufacturers don't care about the efficiency. Shunts are removed because they limit the power and at a 120v 1800w level (not so much 240v) you need every drop of power on the output you can get, even if it becomes progressively less efficient to get those extra few watts.
Hey man this is really cool! i'm a welder, and something that i've been wanting to do is build my own welding machine instead of having to buy one. So thank yoiu for this video
Grant, one last thing, draw out a schematic of the magnetic lines of force, in the xformer pole peaces. This will give a clearer picture of the need to complete the Eddy current circuit, of the pole pieces.Your shooting for high current-low voltage.
Yeah, I know people who've done it with 1 core but it's tough to get it right. You probably can't use hookup wire, you'll need extra turns on the primary too. Need that extra copper to keep heat down. 2 cores and you've got a luxury of wattage :) Awww yeah. I have 5 scripts open at the same time right now, they're all interconnected so it's taking forever. I'm really excited to see your water resistor, looks better than any I've ever seen. Ghetto but a polished, classy, reliable ghetto. I like.
R.I.P a beautiful legend. You will be dearly missed by millions.
Mr. Izaku honestly for real I just started watching his videos recently and to find out the new breaks my heart
Not really
@@serenityk2tu749 he has millions of subscribers sooo
He got in a paragliding accident and passed away July 30, 2019
@@arkansas6865 wdym who is goat
Classy ghetto .. I like that :) Hey, when I watched my video again I looked at the tape. I agree that leaving the coils exposed is better, if not just good practice. If I were to do it again, I'd probably just use a single wide wrap of tape in 3 areas to keep it from unravelling. I'm glad to hear your building your projects .. excited to learn from you my friend!
Wha.. only 2 likes and no comments?
Love you legend RIP you will be missed by millions of people
Why instead of rewinding the second coil, reuse the second coil that was originally in the transformer...? Like, just reversing it with all the parts and coils originally there..
*-EDIT: R.I.P. Man, truly were a legend.. Hope the journey you’re on now is wonderful and breathtakingly awesome my man.. Gone but never forgotten. -*
Dimented Illusionz did you seriously ask a question to a dead person?
Stazick 5 I didn’t realize this when comment was posted, and just haven’t edited it.. I had found out 20 or so minutes later about the paragliding accident...
Number of turns determines voltage and I needed 30-36 volts for this (2 MOTS x 18 volts each)
Managed to make a 13 minutes tutorial on how to make an arc welder, hard to find any videos this efficient nowadays
The stick welder and metal melter are two different modifications, so the power will be different for both. Metal melter is up to around 800 amps at 2 volts, and this stick welder is up to around 100-120 amps at 30 volts.
Great instructions Grant! I like how you're honest about showing the best ways you found that worked, implying that you tried some ways that didn't work as well first. Looking forward to part 2!
I built with 4 MOT, and got 36 V AC, 250A. Added a 220v AC cooling fan, a selector swith to get power from 3 trans or 4 trans, a 40A tripper, and one AC Power Indicator. Welder Works fine with 3 trans itself.
I'd never heard of that before, but I just looked it up and I'm sure it would work. To modify it, I'd just use thick electrode tips rather than 4 or 6 gauge wire. Something like 2 gauge. I'm sure it would work easily. Thanks for your comment.
I miss these awesome videos they used to make 😭
*he
@@BigManator it doesnt matter mate
I mentioned the original video to a friend and how i wanted to try it, they gave me two microwaves and said 'weld me something to put in my garden' Great videos! I'm patiently waiting for part 2.
I got my 4 gauge at Home Depot. The 2 gauge was from my brother who works at a battery supply company and had some in the scrap bin.
Thanks Steve! Most of these projects I've had to try 3-5 times before I even make a video just to get some experience in doing it. So yeah, lots of fails in order to get a success!
The number of turns is critical. Heavier gauge is better, but anything over 8 awg won't fit .. so I think this may be about as good as it gets when using a MOT transformer.
It's true. I went with the electrolytic approach because it was cheap and easy .. but there is always a trade off .. but it works :)
RIP to the man who inspired me to do DIY. You are a legend who will be missed.
It welds great with 1/16 rods. It only overheats with the larger rods.
Thanks for your comment William. Do you have experience refurbishing and rewinding motors? I'm interested to hear what more you know. So far I haven't encountered any adverse effects from reduced eddy currently. My understanding is that it reduces the efficiency a little, but that's a sacrifice I was willing to take.
I really miss this guy. I feel like I lost a mentor... RIP Grant you legend
Congrats on your new subscribers. Actually the earlier attempts failed because I tried a single MOT with 28 turns of 12 awg on 120vac and the insulation melted (for obvious reasons). This setup hardly even gets warm after burning 10 rods in a row :) Great duty cycle I'm happy to report! I'm still a fan of the electrical tape, but respect your opinion. Looking forward to your next tut!
Awesome Jeff .. thanks again and I'll be excited for the Scariac video as well. Should post 2 weeks after part 2 .. so about 4 weeks from now. It's really quite simple science and I'm surprised nobody has really done it before.
Nice work again Grant!
8.36 mm2 - compliments of Google :) Number of turns determines voltage. Gauge of wire handles the current. Bigger is better, but any bigger than 8 gauge won't fit in the transformer, so it's a compromise.
Because of the large current, I believe the thin insulation would have melted easily and it would have shorted out.
Thanks for your suggestion. My projects are made from what inspires me and what I'm passionate about. This week it's Microwave Transformers. Next week it will be potatoes. Random is the key word my friend, so stick around and I'm sure you'll see something you like?
RIP to the GOAT
I tried to make one of these in high school
I'm a little late but how did it go?
Andy Rygalski I a lot late how it go
he died at an paraglide accident
Jorrit Spek , Who died..? Guy making the vid..?
Dimented Illusionz yep, he died a while ago. Rip man
Grant thank you, Ive just found your channel and found myself instantly hooked. As a kid I was a poor student and now at age 40 I am a sponge for education. Physics, chemistry, every topic you've covered has a real world application (2 personal favs HHO gen & the scorcher) I hope you cover more in the future on HHO with emphasis on the high frequency low voltage input. I will be happily waiting for you to cover more great topics.
How are you doing now?
This guys' neighbor throws out a lot of microwaves.
+Micah Cory Makes you wonder if Grant is sabotaging them.
His neighbor might be Jogwheel... oh wait.
And all of them work perfectly :D
+Micah Cory Its probably not the same one.
you can find them thrown out everywhere. I'm going to scrap 2 up right now
Because the video would be far too long otherwise. Technically it's in 4 parts. 2 for the build, 1 for the results, and 1 for the Scariac.
Awesome suggestions about the DC welder. I just got 3 car batteries actually for that very purpose :) Have you ever made your own welding rods? For a TIG welder, how would you supply the gas?
Wow. I took a welding class in college, and I have often wished to pick it up as a hobby. I'm very tempted to try to recreate your work in my garage. Great video! Can't wait for part two!
I said what I meant, and I meant what I said :) I'm glad you liked the videos, thanks.
Do you know any projects using cathode ray tubes? There is a little wire, some capacitors, and a CRT in the monitors, but I'm not sure yet what you'd use it for. There should also be a flyback transformer, and I know a few projects those could go into. Any ideas will be considered.
Better off buying one for your own sake unless you really know what you are doing, another reason would be the need to change current and/or voltage, you need different strength to it depending on what you are welding..
+IAA015 He made a variable amperage system, search his "Scariac" video.
I agree with Nicolas, give the fans what we want! A two minute video of your favorite stuff, music etc., fade out with the family waving goodbye, simple stuff. Like, what do you think of the first 3-D printed car coming out soon?
Thanks for the great idea! I wish I could be as innovative as you, I'd save more money. This idea has allowed me to really begin to learn how to weld, without having to dump $500+ on a Hobart or other welder.
You might burn down your house. Both primaries are in series as well, and connected to 240 volts.
It's also similar to "How to Make The Metal Melter"
If you're into RC, the old secondary wire used in older, larger microwave transformers is perfect for rewinding fried outrunner brushless motors, it probably has a mile of it in the coil if unwound. Newer, smaller microwaves may use aluminium secondaries, not good for much, so make sure its copper.
how is it holding up. did the 8 gauge last longer than the 2 gauge or did it melt too. i've bin thinking of making a graphite ARC furnace to melt iron sand and maybe make steel.
No, the primary is still the primary. Only the secondary was changed.
Yes, It's a different artists version of it :)
Uploading it now, but it won't be public until thursday after next .. coming soon :)
1) Why do you not use the original secondary coils?
2) How do you determine how many wraps to make the new secondary coil?
3) Any idea how many amps this is?
Any response would be appreciated, I really enjoy your videos.
1) because you need low voltage and high amp
2) the lower the turns the lower the voltage
3) you need amp meter to calculate
Thanks for the response!!
I understand the volts, how do you calculate the amps?
Winston Jordan
You should use an amp clamp meter on one of your output leads and you may increase or decrease the turns of the secondary acording to your needs
This is awesome! I must say this is a perfect example of great up-cycling. This in turn could lead to better fabrication of things made from up-cycling what would be considered waste. I thought about getting myself one of these one day soon as I could fit it in my budget. Now I can build one these things at low cost. The value of this information is really not measurable. I will never have to go without a arc welder again because of money. Thank you sir for the inspiration.
Halfway through this I began to wonder why I was watching this because I already have two welders...
Look at the electrical arc furnace....use the homemade welder for that instead.
CHAD I already made that and use my stick welder for that.
+TheCompute101 But why have two welders, when you can have three? Or use the third as your junky one that you loan out to people who don't know a welding arc from a story arc.
+Ian Mittelstaedt True
because this one you can turn into a plasma forge to melt just about anything. pour steel into a mold (he has a video for that too) and you can easily make lots of stuff.
Can I take that as a compliment? :) You could just check back in a few months. I'm sure all the welding videos will be done, plus a lot more :)
sometimes i sit here for hours watching your videos!! :D
Gudday Sir..how many turns in each transformer.tnx
Very close. You'll see how I connected the power in Part 2 .. but here's a hint .. I used 240 volts.
Lol! $17?!?! Man have times changed. The goin rate now is $40-50 for a similar chunk of wire...
Studying for my circuits final. I had to come back to this guy because now I understand what is being done, very nice. :)
why do you have to rewind the secondary coil, how and why does the amount of turns in the coil effect the amps/volts?
amps is how much energy is in the wire volts is how fast the energy flows threw the wire also theres a balance with a transformer if you want more volts the amps have to equally drop and vice versa the reason you need to rewind the transformer is you want high amps not high volts, m.o.t. put high volts low amps you need to amps in order to weld so to speak ive made things like this before.
GA Drache Voltage is more like the force that pushes the electrons through the wire and can better be described as electrical pressure, not so much how fast the amps flow. It can also be described as the electrical potential between 2 points.
Still not a very good answer. I want to know what/why the different amount of whinds in the 2nd coil make it different then the primary and why it needs to be different
Well its hard to understand, in transformers they are either step up or step down, in most cases. That means that the voltage is either increased or decreased. For example, you have so many turns of wire on your primary and you put 120 volts onto it. The voltage flowing through the wire will cause a magnetic field to be created, the magnetic field will then induce voltage into the secondary winding. To step down your voltage you use less turns on your secondary than your primary. To step up your voltage you increase the number of turns on your secondary compared to your primary. However when you step up or step down your voltage, your amperage also rises or decreases in a opposite manner. When you step up your voltage your amperage is reduced, and when you step down your voltage your amperage is increased. That's why, in the second part of this video, he can put 240v into his primary windings (2 transformers) and have 37 volts out of his secondary, but his current is as high as 200 amps.
So if he decreased the number of turns in his secondary to say 8-14 would this setup work with only 1 transformer
That's right .. you'll need the 2 MOTs to get the power without over temping the cables.
If I live in the U.K. And so my outlet voltage is 240v and I'm guessing the microwaves transformers are also made for 240 v is one transformer fine ?
1 transformer won't give you enough power to weld. He says this at the beginning!
Sean Craxford but i was thinking cox im in the uk the microwaves would be working with 240 v , so i might only need one
not likely, im guessing your microwaves are rated for similar wattages (here they're 1200 ishh) and its really the wattage that's holding one of them back
he is using an electrolyte in a tub to power his. i believe the transformers are DC with an inverter in the loop in the microwave, so you will need to convert the AC current to DC before the transformer. if you can push 240V DC to it, and it handle the load without catching fire....... it should weld. I weld at 40amps most of the time (1/16th rod) however when using 1/8th rod i have to push more of 90+ for 1/8 steel.
i tried this, my welder litteraly caught fire.
This is a brand new post. Nobody has ever seen it .. but you may have seen the finished version of the welder 2 weeks ago.
Damn, it feels good to be a gangster.
you aint no gangsta cuz nun gangstas type or speak likes that
Robert Crow
definitely right about that.
I'd love to find some rectifier diodes that can handle the current, but they are super expensive. Where do you find yours?
You know, I like this guy.
So do I.
not anymore
Phil Zajac who are ua
You're very welcome. And thanks for your appreciation!
Who's watching at 2019?
Please make more videos like these older ones, I like them a lot more than the "tv show" you've got going now
One of grant thompsons better videos before he went the dark way of youtube...
honestly
How?
Whaa?
A suggestion on the vice work. Try a set of "soft jaws." These can be as simple as two pieces of aluminum sheet metal, bent ninety and placed on each jaw prior to clamping. This way the part is pressing against the softer, rounded corner, aluminum as opposed to the harder, sharp edged, steel jaw. On the complicated side, I've seen new jaw forms machined out of aluminum or bronze that fit parts exactly. That's more than most people need.
Lmao he's using the beat for damn it feels good to be a gangster
I feel like microwave manufacturers watched this video and said, "we're not letting anyone get our primary coils!" and thus how adhesives began to be included in the transformers, I have already wrecked 2 transformers trying to get them apart.
I love how everyone comments before seeing the second part ;)
Hi Grant, I'm 71 know, and worked as an Electrician since joining the Navy at 18. My work was always Maintenance Electrician. Repairing manufactured electrical equipment .Your at more of R&D projects.
The pole peaces on the xformer could be solid iron, with large circulating current, they are laminated to
reduce this current, to multiple smaller currents.Tack welding or clamping the end of the pole, allows a complete circuit, for the Eddy Current, and your right, it's a loss you can live with.
Now, do an arc reactor :-P
he did that
The Best Minecrafter His comment was 4 months old, dude. Read.
i know i was informing him about the video for if he wanted to watch it
jonathan lemons dude have some respect. he is a Minecraft player. he can't think as good.
Paul Panitz Now that's a little insulting. Not all MC Players are bad at thinking. Think about the famous redstoners, The epic builders... Etc.
I didn't know you could MMA weld with AC. Learn something new every time I watch one of your videos :) For DC, You can put 2-3 car batterys in series, as long as they have the CCA. Use some fence wire wrapped round a large form for a variable resistor. Surprising how long they last! I've been thinking about making an AC TIG, for ally. This might be a simple way :)
Looking forward to the next video.
The background music... is that Geto Boys - Damn It Feels Good To Be A Gangsta?
it is... i was thinking the same thing XD
If you want to DC TIG weld with a homemade welder or AC buzz box, then what you gotta do is make a 5 phase bridge rectifier (made of five 35 or 50 amp rectifiers screwed over a heat sink or aluminum channel) and connect it to a choke (you may connect a capacitor to a choke, but it's not necessary since the arcs will be stable, anyway). The choke must then be connected to a TIG torch. In DC TIG, the torch must be connect to the negative diodes to get DCEN. A single phase bridge rectifier can be made with 4 diodes, such as the 1000 V by 10 amps that you see on Ebay (if you connect 4 of those diodes altogether, then you get an overall wattage of 40 kw as a single phase bridge rectifier). Homemade bridge rectifiers may also be very handy in case you wanna build a wind turbine.
what happens when you use ten transformers
+CESAR ALEJO the copper inside of the wire itself would either melt instantly, or explode
+CESAR ALEJO that's how our world was created.
+Ádám Sipos And it has to be transformers from microwaves too, don't forget that part!
+CESAR ALEJO POWAHH!!
+QuadraPlex 2001 it will just trip your beakers instantly
Please keep all of his tips to help inspire us. If you want to take it down I understand, these comment dont help. But please keep the videos on an sd and share them. We will need them at some point or the kids will. For a better society.
How is watching in 2016
savanah sanders i am
Meh
savanah sanders me bro me....
savanah sanders me
savanah sanders me
Yep! How could you tell?
Who is watching in 2017
Your mom
Ryan Peters atleast she is with your dad ;)
2070
I've gone through 6 microwaves trying to find one with a transformer that is big enough to hold 18 wraps of 8ga wire. None of them could. What am I missing here? How can I find ones big enough?
Correct! Dangerous as in potentially lethal.
Use this the same as you did the THHN wire. Wind the bundled wire around the armature you made.
Make your connections with Silver Solder when possible, it makes a good high current connection.
The coils should be coated with motor varnish, to hold in place.There are several types of insulating paper. to
use around the pole peaces.
I'm working on it right now and it should be public Thursday after next
Microwaves can kill you. Defiantly know the risks before you try.
more people need to learn metal arts and industrial welding its a skill that will never be outdated and metal lasts longer than anything just be safe!
Thanks for the compliment Nicholas. It might be a boring video. Me sitting on my butt in front of the computer editing videos all day. lol
If you have PVC against a sharp edge you get cold flow, in essence, the plastic moves away and creates a short.
It also provides some extra insulation.
When you're winding the secondary coil, are all three layers wound from the bottom to top? Or is the second layer would from top to bottom? Does that matter?
Also, I'm in the process of salvaging a projection TV thanks to your solar cooker video. You rule! keep up the great work!
Thanks Dan!
With high temperature 12 gauge wires, you should get a total sum of 23 turns (24 could be achievable) for your secondary coil.
I recommend changing the insulation of your wire that's rated for 300°C.
I got yet another batch of some questions that I really need answering:
1. Can this homemade welder of yours melt aluminum cans and copper wires completely?
2. Can arc welders that people usually buy in hardware stores melt aluminum cans and copper wires completely?
3. Can both the dc and ac converter welders melt any kind of metal and if they do which ones?
Was the purpose of wiring your own secondary coils so they would be made from one continuous wire thereby connecting both coils? I'm guessing splicing the two original secondary could would not work?
Also, what if you were to wire up 4 of these? I understand it would produce more power but is it just an overkill or should be done if I have the parts? Serious answers please...
It looks like a lot of hard work & effort for little saving, as a second hand ark welder can be found on line for about $45 and that's with rods.
What happens if you do not meet the goal of keeping the primary in perfect condition? Would you be able to successfully still be able to use it with a few nicks exposing the aluminum wire?
+Chance Drake depends how bad you nick them. you can touch them up with enamel but i you broke the connection it will be very hard to fix. also if you nick them very badly that area might generate heat and you may loose performance.
You are correct about the shunts. A better method than shunts is to add extra turns to the primary, but copper is more expensive than iron and manufacturers don't care about the efficiency.
Shunts are removed because they limit the power and at a 120v 1800w level (not so much 240v) you need every drop of power on the output you can get, even if it becomes progressively less efficient to get those extra few watts.
Hey man this is really cool! i'm a welder, and something that i've been wanting to do is build my own welding machine instead of having to buy one. So thank yoiu for this video
Keep an eye out for How to Build the Scariac ;)
Thanks David!
Thanks brother!
Grant, one last thing, draw out a schematic of the magnetic lines of force, in the xformer pole peaces. This will give a clearer picture of the need to complete the Eddy current circuit, of the pole pieces.Your shooting for high current-low voltage.
Yeah, I know people who've done it with 1 core but it's tough to get it right. You probably can't use hookup wire, you'll need extra turns on the primary too. Need that extra copper to keep heat down. 2 cores and you've got a luxury of wattage :) Awww yeah.
I have 5 scripts open at the same time right now, they're all interconnected so it's taking forever. I'm really excited to see your water resistor, looks better than any I've ever seen. Ghetto but a polished, classy, reliable ghetto. I like.
I am waiting for this to load, but I can tell already, this is going to rock. Thanks for figuring this out and posting!
It's in limbo. I had a lot of complaints about it.