I Made A BIG Rotating Magnet Induction Heater! (with magnets from First4Magnets.com)

Induction heating works so well I'm amazed there aren't lots more examples of them around. You can boil water quickly, using pure undiluted physics!

This is where I bought my magnets from..
and if you use this code WAYOUTWEST10 then you can get 10% off the bill.

[maxinlux]

I originally came for the railway, and sort of miss those videos (but I understand your point about it needing to earn its keep), but stay because every video is a wild, soft-spoken and cobbled together ride, and I often learn something new along the way!👍🏼👍🏼👍🏼

[dave]

"The more things jiggle the hotter they get". I can relate to that 🤣🤣

[gordanmilne]

This project is an attractive proposition. 50% of the time.

[atmazee]

Forget heating your house, you could make the world's biggest wind-powered induction cooking pot! Imagine the size of the soups.

[MagicWindowProductionsMobile]

As a fellow tinkerer and the powers invested in me by the School Of Hard Knocks, I hereby dub thee: a true Gizmologist and a Master Gizematician and you shall now be known as Sir Tim of the Gizmo. Go forth and wear your laurels well!

[redoktopus]

my hats off to anyone making things in ireland. everytime i see metal it looks like the weather just eats it away!
thank you for the videos tim :D

[UTuber]

Great experiment Tim. Would love to see this done again with a long tube of copper that goes most way round the disc.
Once the water heats up, it should set up its own recirculatorry action into a bucket with the cool water feeding in the bottom, and the hot water spitting out the tube into the top of the bucket.

[ElectromagneticVideos]

A easier and safer suggestion: It doesn't matter whether the magnets or copper is rotating. So rotate a copper disk and have the magnets on a non-moving board to remove the risk of the magnets flying off. Even better, for the rotating disk, use aluminum rather than copper - it wont make a difference which is used as long as they are thick enough. The thickness should be the "skin depth" at 666Hz (40, 000 flips/min divide 60) which for Copper is 2.5mm and Al is 3.1mm, so a disk of either at those thicknesses will be as good as you can hope to get in terms of heat generation from eddy currents. Even better, if your stationary magnets are mounted in a thin holder, use two disks, one on each side of the magnets for twice the heat. And, since the heat is generated in the rapidly rotating aluminum disk(s), the rotation will create air movement to help transfer heat to the air. Regards from Canada!

[msx]

Since the windmill will be pretty powerful, you can stack more than one disk along the shaft. Then you can coil your copper tube to pass between two disks with every loop. Btw i was impressed by the performances, that thing surely heats! Much better then the friction system. Also, watch the temperature of the magnets!

[MCzipper]

The heater, the explainations in the video, and the remarkable technical comments/discussion between users truly made this video one of the best I've seen on YT in years. Kudos!

[robotskirts]

What a ride. I had to look up when the bandsaw build was because thats when I and i assume many others found the channel. 7 years! So many cool projects.

[schmolty]

Would have never thought of direct induction from a windmill for heating. How brilliant! Looking forward to see further developments.

[Allan_aka_RocKITEman]

*_"They got stuck somewhere."_*

That one ALMOST *went* over my head...🤭

*EDIT→* I did not realize until just now that I misspelled the word *_"went"_* -- I originally typed *_"when"_* -- in the last line of this comment. I just corrected it.

[iLevitation]

Fun idea and video. I made a disc like that back in 2009 to make a Lenz's law levitator. It works! If you were to place a sheet of aluminium or copper over the rotating disc it would float but it would also slide off quickly. It would need to be tethered in place to remain floating. Folks made hoverboards with my idea. :-)

[gizelle-s]

Your excitement for what you're doing is awesome.

[sebbes]

Make a wooden wedge, at a shallow angle, then wedge the magnets apart *but ALSO together* so they don't slam into each other & break (as you have done twice already).
It is also MUCH safer for your fingers & other limbs, also be careful of magnet-fragments flying at high speeds towards your eyes.
*You can also build a kind of wooden "scissor", to "sheer off" one magnet from the rest.*

[tracybowling]

I love it when you cobble something together to carry on with a project! It's my fav part. And I really like this whole project. I can't wait to see what happens. Last and most importantly, I really hope that you feel better soon. I hate that you have been sick for so long. Drink plenty and rest plenty!

[CAB]

As it's setup right now, the magnets produce a magnetic field on both sides of the disk. That means you could put metal on both sides of the disk. Or you could use something called a Halbach array, which is a special way to arrange the magnets so that most of the magnetic field is on only one side of the disk.

[jeffreymorris]

Sub'd. No way I'm going to miss this project. When I was a teen (back in the 1800s I think) in Kansas, I built a windmill rock polisher. It was direct drive -- simply a trailer tire about 1/3 the diameter of a pretty rough, dual-bladed approx 1 meter windmill, hooked directly to the shaft. The grit and the rocks were dumped into the bottom side of the tire. They tumbled there just fine until the rpms got to where the rocks ceased tumbling and just became fixed to the inside of the tire. This caused me to install flexible blades on the windmill that regulated rpms down to where the rocks remained tumbling in all but the worst wind Kansas could throw at it. Then I became interested in girls and junked the whole apparatus.

[DrMunns]

You really are a genius, how you can come up with sumple effective solutions to complex problems always amazes me.