2119 DIY Magnetic Switch

You Can Find The STL files for this here www.thingiverse.com/thing:632...
Don't forget to check out my companion channels TnT Omnibus here / @tntomnibus and TnT Talk Time found here / @tnttalktime

[@GreatDataVideos]

Would have loved to have had you as a science teacher way back when.

[@HaloWolf102]

Well we have him now!

[@jackheath1416]

​@@HaloWolf102was going to say the same!

[@eskanderx1027]

Same!

[@eskanderx1027]

Same!

[@Buzzhumma]

Will be making my 80 year old dad one as soon as my magnets turn up . He did metal work for years and would love this to play around with in his recliner. He will probably attach it to a stick to pick things up with . The novelty will be great value for him 😂👍🏻

[@silkyway6575]

That's me - the 80 part I mean, and I'll probably have to make my own. I want to use it on my drill press.

[@10sheds21]

You have such a joyous generous nature your videos have a feel good factor off the scale. They could be used to restore faith in mankind. Thankyou

[@sylviekoenig9960]

I LOVE how much fun you’re having doodling around with really useful stuff. I also love that I understand it all (well, almost as I am sadly hopeless at electricity). You are amazing Robert!

[@Horsenb]

Thanks for the update from yesterdays video. I can see by the comments that you have lit a creativity fire among your followers.

[@colleenforrest7936]

Oh, you could reeeeally mess with someone with that thing 😅

[@HWJJSCHUMACHER]

now the (real working) magnetic motor is not far away !!!

[@Moriandrizzt]

Thank you for being you. Keep being your authentic self. If you ever feel like not posting on your channels don't feel guilty for that. I know it can get exhausting and not wanting to upset your subscribers is a real fear. If you ever feel you need to take a break from posting, don't hesitate.

[@mikehen06]

Is this what Ethan Hunt climbed the air duct shaft with in Mission Impossible 1? I’ve wondered about that since I was a kid

[@lordgarion514]

I'm pretty sure he used window glass suction cups.

[@KevinBarrier]

Pretty sweet way to put a knob, anchor point, or mount anywhere on your new Cybertruck! Or a refrigerator. Or steel door.

[@justtinkering6713]

If I ever go to England, I'll look you up and buy you a pint or two.

[@Ian.Gostling]

Terrific Rob!

[@mikaelfransson3658]

I just love it Rob.!❤

[@justtinkering6713]

When I was working we had a magnetic switch. It was a coil wrapped around the magnet. When we wanted to turn off the permanent magnets we energized the coil with the opposite polarity and it cancelled out the permanent magnets field.

[@thekaxmax]

nice, only powered for off.

[@JFSmith-nb8hf]

Dude, you have entirely too much fun doing these.👍👍👍

[@stuffoflardohfortheloveof]

That is brill! Thanks again for this, you've saved me all the time and effort to design my own....👍

[@Dysiode]

Wow, that's such a dead simple design! really takes the mysticism out of those maglocks

[@Allegedly2right]

Fred Dibnah springs to mind Fred and you would have had some fun for sure 10/10 straight to the point no fancy tools.

[@dismayer666]

hahaha I'm mindblown. Nice one :)

[@stss2260]

This doohickey reminds me of your switch flux generator, since your using nuts I bet you can take apart your thunderbolt generator and pop some coils on that bad boy to make a pocket sized generator

[@intelligenttinkering]

Love it 😀 mate

[@Betruet]

Really nice model. Thanks for making it available

[@mikegLXIVMM]

I was looking for something like this to build a climbing robot for steel structures. Thanks for posting!

[@mitchpayson6203]

if it takes less energy to separate can we make a motor. remembering inventor howard johnson mag motor:}

[@matslarsson8790]

It does'nt take less energy, it just easier because it's a longer distance with less drag force instead of a short distance with much drag. So the difference in total force is zero. Like a lever.

[@bsrsonptyltd5854]

your shear joy of sharing this is intoxicating. well done

[@colrodrick8784]

Totally cool Rob.

[@josefforer8300]

very warm greetings from Vienna and a big thanks for this wunderfull video: I´ll print it tomottow, the magnets are ordered already :)

[@yaka2490]

oooo robert you could make that into a gravity battery system as you could have a lever on the fallen weight that moves that lock through 180 maybe as you pointed out low effort so imagine the magnetic pull on the weight enough to lift the weight and turn the flux on and then another lever on the weight to turn it off as it passes to the next section if that makes sense all the way up a shaft falls down charges supercaps rinse and repeat hehe

[@edeaglehouse2221]

Or make the magnetic switch disc from video 2118 and turn it only 60°.

[@edeaglehouse2221]

Great ideas! Put one of these at each end of a cable wound around the generator axle and use them to hold a steel weight and release it at the bottom of travel. It would require some of the energy to be used to raise the weights again, like maybe coupling it with a windlass, but it could all be gravity powered. Very nifty!

[@Cumbriman]

I wish this fella would agree to adopt me but sadly I'm a 40 year old man and I don't think it would be deemed socially acceptable 😂

[@SaltGrains_Fready]

Would also be interesting in a motor, generator and alternator setup to perform speed control or regulation of generated output if there was a control mechanism connected moving it as output was sensed.

[@thekaxmax]

that sounds like a reluctance motor/generator.

[@pauldent3059]

Thought you were going to break out in a bit of Tommy Cooper then

[@100roberthenry]

great, nice n small.....now put a load in series around a wheel that has prongs sticking out that turns them on and off in series... :)

[@FernandoBelloEchevarria]

Love how he is really enjoying his invention!!😂

[@clkbateman]

do the spoon jar trick next

[@thelastofthelemmings6279]

you're really getting ahead of me now that you've got a 3D printer. I miss the days when you made things from garbage 😊 scavenging old microwaves and what not.

[@jeffcarr392]

This is so cool, really useful. One suggestion is to maybe include a diagram for the magnets poles, when you said make them all point in the same direction, i was unclear as to if you meant both north poles to the centre or left (if you get what I mean).

[@janthran]

now to put it on a stick with a couple of cogs so i can switch it from 6ft away!

[@justtinkering6713]

Now make a wind turbine with a magnetic switch to pulse the magnetic field through the stator coils. No more Lenz's law to slow your rotor.

[@matslarsson8790]

Lenz law will occour anyway, because the back emf from the coils will affect the magnets, and the nuts must be changed to ferrite or mumetal to reduce eddy currents. I have tried something similar some years ago, and the break effect seems to be impossible to eliminate.

[@justtinkering6713]

I guess that would be impossible because it would mean we were getting more power out than we put in with the wind. Nice to dream though.

[@edeaglehouse2221]

​@@matslarsson8790Did you mean the "brake" effect? Or did you actually break something?

[@matslarsson8790]

@@edeaglehouse2221 okey, wrong spelling. I meant brake.

[@snappey]

So you're secretly on the way to creating a perpetual MAGNETIC MOTOR. Would love to see how you go with that haha. Great stuff mate!

[@salilsahani2721]

Thank you :)

[@yoashuain1]

Amazing!

[@markrimmer4567]

This is how magnetic motors work. Turn it at a point of resistance . And then it spins in to least resistance. But that point is attraction, if you get the right distance 4:14

[@markrimmer4567]

Just turn it on and off at the resistance point

[@markrimmer4567]

Use a timing belt

[@mscavsfan]

can you take this up one more notch. Make two of these devices and turn both on and bring close together so they are attracted to one another . At this poing its one magnet. Wrap wire around the outside of the two magnets. Turn off one of the magnets. You should see a spike in the wire.

[@qkitselectronics5415]

Did you know the neodymium was invented in Canada by the NRC. The person that lead the team lives here in Kingston. Have a great day everyone.

[@CAMWaite1]

T H A N K Y O U ❤️💋❤️

[@R2NOTU]

You can switch flux fields electrically now your doing it manually...make a motor out of it ...

[@meurigf]

Why drill out the centre nut? Is it just to make it smooth for the handle shaft to pass through?

[@austinmesta9862]

Cool!!!

[@samrobinson4403]

Where do you order all your magnets from. Having a hard time finding the right size for all your projects.

[@maranmarantakeiteazie]

Rob, have you thought about making a video on how to make the iron nitride magnets - in one of your earlier videos, you mentioned that you can add iron powder with a nitrate salt into a tumbler. National Graphic has stone polishing toy that could do the job - fill keg with powder and ball bearings.

[@JustGoAndFly]

Hi Robert can you make magnetic switch weighing less than 6 grams?

[@edeaglehouse2221]

Use smaller nuts and magnets. Should be easy to build to the scale you need.

[@jamesrenwick3244]

Why not have a thinner post, so you don't have to remove the threads ? Although they won't grip the post as firmly, they will still fit into a tight hole, they can only travel in one direction ( towards each other ), and fit into separate parts that are kept together by the handle, so I can see them moving much anyway. You state you can use bigger magnets. - are two 10mm x 5mm just as strong as one 10mm x 10mm ? ( two 5x5mm are far cheaper ) - which is stronger, 20mm diameter x 5mm thick or 10mm diameter and 10m thick ? - is there an online tool that suggests the thickness/diameter needed to lift a given weight ? - once you get to a size of 40mm x 30mm, neodynium magnet prices start to rocket ( £12 each ). So I assume a stronger device would need standard ( non-neodynium ) magnets, as they are more affordable, albeit with far less strength ?

[@edeaglehouse2221]

Or make the post itself separate and threaded.