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I made this coil 3/4" ID following Tech Dregs instructions and it takes less then 5 seconds to make 223 case glow with 360W power and less than 2 seconds with 800 Watt power. Using Chinese 1000W ZVS board and 3/16 tubing.

thank you so much!!! this makes a lot more sense than the stuff I was reading up on, it gets really complicated

Good afternoon, your videos are very interesting. I have a 2500W induction machine and I would like to ask you if it is possible to use a 150 ml crucible instead of the 70 ml that comes with the machine?

May I ask If you have to recommend a size for a zvs for case anealing, would it be the 1000W of would it be bigger 1800/2500W typical models ? Kind regards

Great video

It feels as if 30 seconds is long.

I figure "ratcoons" have just as much right to live as I do. It is our job to keep them out of our garbage, atics and hen houses.

Real man of genius! What an amazing idea

iv bought one of these. its second hand, but thats ok, i feel less guilty about hoarding loads of junk. but, it didn't come with the copper. i can easily knock up a coil, but what about the constraints with size, weight and impedance. i don't want to fry the board.. is it so critical? thanks

A wonderful primer. Thank you!

Good content, that would explain why the humidity is around 100% in my house I have 4 12k btu units, and my bill is really cheap and all, bur that Humidity is terrible...

Cool I was maybe 5 when a boy cousin let me have his my grandparents wouldn't let me have it or a chemistry set say it was for boy ugh its so cool to see yours where do you search for your sets ebay or personal ads?

i know this video is already 8 years old but i like it... in fact i assembled one yesterday but my LED's are not functioning perfect... blue, yellow and red are not functioning but the output voltage is correct ,working ok... i double check the schematics and all parts correctly put and the LED's are not defective... i wonder where did i go wrong?

You’re great thank you for your videos

VFD means Variable Frequency Drive. Induction motors require a change in frequency to change speed, unlike a DC motor where you just change the voltage applied to the motor to change speeds. When your induction motor is running at full speed the drive will supply it with a 60Hz signal. To slow the motor down it will increase the frequency of the signal. The 400Hz setting is the maximum frequency the drive will apply to the motor, this will result in minimum speed of the motor. That's why the default setting is set to 400Hz. You can change it to higher or lower depending on what speeds you want your motor to run at minimum and maximum. There are limits to how much you can change the settings. For most induction motors in Canada and the U.S.A. 60Hz to 400Hz is standard. You said you didn't understand why the setting was default to 400Hz. This is why.

Do you have a fence for your saw? What miter gauge did you use? I was given one of these saws that has never beeneven plugged in. The tires and drive belts are all in the same condition as yours. I'm looking for blades, belts, a fence, and a miter gauge. Thank you for this video, It has been a big help. I didnt even know about the second pulley behind the drive pulley.

Do you think that yeast might work for rising, at least if one is using alkali-processed (nixtamalized) maize?

I intend to grow both white dent maize and a dark-purple black flint maize, both heirloom types whose names I will not speak because for food processing it doesn't matter, only for agronomics. I'll let you know if I ever make anything neat with it. I don't have any seedeater pets to feed it to.

You are THA MAN!!! I really appreciate all of your information and presentation. Anyone watching can see your passions, not only with induction circuits but also in educating those wise enough to take advantage. Sharing your knowledge, especially what you feel is note worthy, is a true gift to us all. Thank you! Sure it is IMPOSSIBLE to give you the recognition and thanks you deserve, the world would be a better place with more people like you.

Seems like a good path to go down. I have a Jabiru Experimental aircraft, so I'm allowed to experiment! I can't find a cap and rotor for my current dual plug ignition system, so I went down the rabbit hole, and now I'm considering a Coil On Plug system using an Arduino as a controller. This should be fun!

Daaaaamn! This is AWESOME! Love the play by play and break down of the the processes taking place, would be sooo happy to see this in person! Thank you for documenting in such detail!

Woooow! That's my DREAM setup! Just ordered a 1000 W board, like 2nd you showed (the one you haven't used ) appreciate the tips, will make sure n add thermal paste in back of mosfit, cant wait to melt some gold! Appreciate your hard work n dedication!!!

That is a nice way to remember it. I do always find myself having to think about how to re-arrange it to solve for I or R in the traditional notation!

Thanks! Very interesting, I did not know it either :)

The biggest problem with the three wheel bandsaw is you need three hands to replace the blade.

I never actually thought to try this! Ive bought hole punches in the past but the problem is they are never really the exact size that I need.

Thank you for the video. I have a piece of track that measures 7" tall and 3" wide track. I'm trying to find the pounds per yard for this type. The best info I could find said 127lb/yd...does this sound right to you? Thanks again.

I'm glad you showed me the excellent shop layout. I'm in Western New York area. I just started with blacksmithing. I wish I lived closer to you. If you ever wanted to sell any of your on used equipment , I would drive to you. Hopefully you are doing well. Tom

Great idea! How many rpms is the sump pump motor ? Keep up the good idea videos!

Thanks you for sharing this video it will help me a good deal

Thanks for the video. I just got one of these for 50 bucks. And it came with 10 brand new blades! I just got the wood drive belt in and it seems to be off-center from the drive pulley. Do you know if there’s a way to adjust the lineup of the drive pulley off the motor and the drive wheel. That’s run by the driven pulley? It seems to be “in “ too far . I can’t see any way to adjust anything..

The following isn't statement of fact, I'm muddling through my own experimentation in a similar area but with different materials, so these are more like questions. I have limited experience in the field of electronics... Question:- Having two coils in series significantly lowers LC resonant frequency, so once you reach Curie temperature, you can't drive much more energy into the workpiece. You need to reach higher frequencies and that requires a smaller coil (or smaller tank cap/s with much higher power rating?) You should be aiming for higher frequency (skin effect) so should use smaller single coils and keep the work moving to compensate for smaller coil area? Or.. you could get a 10+ KW system and just thrash the energy into the workpiece? On a budget, two smaller, separate systems running in parallel with different coil shapes might be a better setup? Ironically, my brother has a masters in electronics so I should ask him.... but we haven't spoken for years. :/ I'm experimenting with inductively heating non-ferrous metals and it was very interesting following you through this video. I learned a lot, thank you! 🤗

Thank you so much for making this video! I just bought the same saw!, however i think mine is a few years older, and didn't have any model number for it; i am so thankful you posted this, with all the relevant information you provided. I'm definitely going to check out your website for more information! Thanks again❤

Wow how cool

Is that can melt cast iron without graphite crucible? I think it is not. I saw another induction heat design can melt iron directly.

Hello I have bought one of these VFD single face in single face out on my drill press can you help me to set it up please and thanks?

Circuit please

Ollie was a very good man and great smith.

That's an achievement - 1'085 °C to melt copper plus a bit extra to cast - and all achieved with safety, reliability and control - good going! Thanks for the tip about mold releases and smoking the mold!

Would you play this hand? 3 Spades 3 diamonds Ace clubs Ace diamonds 2 spades Ace spades Jack diamonds (sorry, for some reason, I wasn't able to get a screen shot of it)

I used your method of waiting for the right hand and it worked. But, it took close to 100 deals to GET that hand. Kind of took the fun out of it.

I've become convinced that the products we buy from China are meant to drive us insane. Kind of a psy-op thing. I have a VFD that has instructions that even as an engineer I do not comprehend. The words are terrible interpretations that have multiple meanings and no reference to anything we use here. Its maddening, and a sad statement on where we are as an industrial nation...sorry...consumers of foreign made products. Thankfully, I'm old, and don't have to make a living with this stuff.

Looking at the parts and thinking back I dont know that most of todays kids would have the attention span to build one of these

I had an erector set back in the mid 60's. Dont remember anything about it other than I had one. Dont even remember if it was a metal or carboard box. Just recently at a garage sell I picked one up in a shoe box for $5. Its called "The Erector", m-6734. Dont know if all the parts are there. It did have the manual several other sheets of paper including an order form. The very small pieces were all stored in small plastic boxes so it appears the original owner did take care of it.

I think you've hit on a fact of why farmers and country people in general always used to have large families/lots of kids and then grandkids. At least before Hollywood and corporate America started programming everyone that the kids should all aim to grow up and move away, get to the big city and "make something of yourself". Surviving the country into infirmity depended on the kids starting to take over the heavy lifting at some point. Learning something about nutrition/herbal medicine and learning to stay away from the pill doctors can be a huge difference too. My father in law is in better shape now at 90 than he was 15 years ago.

Frenchcreekvalley, Excellent work, I have a 2500w ZVS and a mosfet burned out. I couldn't find a schematic, so I developed it with reverse engineering, it's simple. I don't know how to upload a photo of it.

Thanks for this, very helpful. Could you tell me what material your work coil sleeving is ?

Replace the lm317. The problem is in it. Had the same problem with recently bought lm317 in store.

Something I have just recently learned about protecting electrical generation systems and electronics is that a EMP Faraday cage needs to be multi layered rubber lined and basically water tight to have a chance to survive the "High Frequency" damage. Other wise all this kind of effort is all for not post /SHTF. Just stating better safe than sorry . Shalom

It is interesting that some folks have problems with water in the system regardless of how dry the fuel / wood. Other folks like this inject water into the burner to cool things down / charcoal DEMONSTRATED HERE and yet Most interesting is where some folks inject steam into the engine to greatly improve engine performance . / wood COMPONANTE SYSTEMS DO HAVE THEIR ADVANTAGES .