2134 DIY Induction Heater - The How, The Why and The Wherefore

[marjon]

Great video Rob! I'm just about to embark on making an induction heater myself to broil stuck bolts and this video is a gold mine of useful information. Thanks!

[bartronicsecurity]

Being an electronics engineer I've been playing with induction heaters for years. Even made one that looks like a tennis racket. I shrunk the electronics to fit in the handle. Simply plug this into a cigarette lighter socket of a car and you put a pan on the large bat area and you cook a meal. Works great. It really is not difficult. The trick is doing the other stuff I did to make it ultra efficient and effective. Nicely explained Rob

[michaelsohocki]

Dear Rob, would you consider printing a box set? I would gladly pay for one. Your videos are one of those special things I would like to see become part of every family and school. You've done so much--I don't want to see all that work go the way of social media. It deserves, more than most, to be in a box set with your face on the cover.

[theGraphicAutist]

Resonance is EVERYTHING in every aspect of existence!

[austinraney]

I cannot put into words how much I would like too just be there with this guy building stuff he knows a lot about electronics and it is amazing as well mind blown great amazing people like this are the best ones to learn from..
I wish I would have spent more time with my grandfather before he passed but the stuff he did teach me I will take with me for life, as it so valuable and priceless at the time when I was younger I did not realize how precious and priceless it was

[AT-osnb]

Rob you are a genius teacher. thankyou for all you do to inspire others

[aquahoodjd]

Thank you for the videos. Your helping me with my awful recovery from complex severe post-traumatic stress disorder. The therapy is absolutely a nightmare. It's about as bad as the trauma itself as you have face it. That sucks and it's my intelligence, creativity, resilience, and agility to introspect along with my instatuable learing capacity which is now my "healthy coping mechanism"! Again thank you Sir and sorry about your own loss. I'm intimate with loss and suffering and I feel for you!

[victoryfirst]

I have to tip my hat off to you Robert. The explanation you gave of the working and actual physical electrical machine is just right on fella. This subject is one that a lot of great things can come of it for sure. What gets me is why more things have not used this technology. I look forward to your direction of thought. Run with it fella. You will see some real sweet results. Peace vf

[StratRider]

please do an entire series on induction heating 👍

[plama]

Its interesting to see the frequency change with the RGB fragmentation at 3:51 when it switches to 10× times frequence you can see exactly 10× more fragmentation from the magnetic field.

[nickfitzgerald]

Thanks, very cool! Appreciate you adding the math, tips etc.

[kevgermany]

Thanks. Very interesting.
Quick ask. Please leave the diagrams up longer. Flashing for a couple of seconds doesn't show us anything unless we scratch around to find and pause them.
Might be an idea to include something about Moffett drivers, even if it's just to say we should use them and why.

[victoryfirst]

Robert, since there are many transistors with different specification, which has the most efficient use of electricity that one can buy ??? Thank you for your help Sir. Peace v

[snowstrobe]

Dumb question probably, but could a contraption be built using gears that could spin the magnets fast enough (to boil water) using human power?

[daveh]

I wonder if that would work on cast iron. I have a cast iron griddle but I can't really use it on my cookstove because the gaps between the burners leave cold spots on the griddle. It'd be nice to have something that heats the whole griddle evenly while demagnetizing my credit cards. (grin)

[lorenbush]

Was the spoon stainless steel? It didn't start melting so I assumed it was. That is interesting, thanks.

[bitsurfer]

You always have great explanations and analogies.

[theGraphicAutist]

I've heard in order to put 2 pc supplies in series you need to float one of the grounds but I've seen people not do it and it works so it's it true?

[blg]

Rob, perhaps for completeness it is worth mentioning that eddy currents are a very inefficient way to heat up a piece of metal. In the device you presented eddy currents play a very minor role. Most of the heating is achieved by magnetic domains switching under the influence of fastly changing external magnetic field. So only ferromagnetic samples can be heated efficiently and even them only to the Curie point temperature. It takes a much more complicated induction heater to melt steel or to heat non-ferric metals. Like you video though.

[jasonburguess]

Do you think that this could be made to produce heating to lower temperatures (37-100C) from a hand crank radio as the oscillating circuit? need something to efficiently heat vegetable oil for a fuel system on a diesel generator, and making an induction heater for the fuel that could be hand cranked would be ideal. I'm in an off grid location in rural Alaska, and temperatures regularly drop to -30C. So heating the fuel system on my diesel generator for both diesel and vegetable oil is essential, but must be done without grid power and ideally without batteries as they tend not to like -30C temperatures. Love your videos and hope you keep up the great work! Thank you!