You need to work out how much current each coil will draw. Measure the resistance of the winding with a simple multimeter, then, work out the current - current = Voltage/Resistance. Make sure the cable you're using can handle that amount of current, also, you'll need higher current rated cable as the voltage will drop over distance, reducing the efficiency of the electro magnets, plus, burn out the cable. Neat idea though 👍
@@drasticg I've no doubt it'll work, just that you may lose some of the efficiency from power loss. Then again, it could work a treat 👍 You can get simple multimeter's off Ebay for less than a tenner. 😉 I'm looking forward to see it working 🙂
I saw a UA-cam video yesterday about some seriously dedicated families of lardons who weigh a combiend 3,000lb (214 stone in real money). I thought that was dedication. You've just upped the game.
@@drasticg yes they are and it's a shame that people are like that , But on the other hand we wouldn't be watching and learning from great people like you cleaning them up thank you.
Just because life can be a bit shit sometimes, I recommend keeping an appropriate fire extinguisher as part of this new kit. Hopefully you'll never need it.
Thank you so much I have never loved anything like this I just bought a 400kg double sided magnet and I’m naming it after your channel drastic☺️😊😁😁😄😃😃😀😍😍 and also love your vids me and my dad watches all of your old vids while we are eating
first thing i thought of when I started watching the mag fishing vids was. lets build a electric mag small and big . Glad to see you have done it already
Hubby said thank you for showing how you made it but he's pretty sure it's more than we'll need to magnet fish. But with some of the finds you have it's going to be a must have. Like the motorcycle and scouters you recover. Great idea and inginuitive way to do it.
Very good...I have one of these I converted to a single electromagnet the only problem is these microwave transformers are designed to work with mid ac voltage 120 not 12 volts DC.. mine were 5 times stronger using ac...or connect your dc batteries (at least 3 minimum) in series...
Really cool, are you creative? My dear brother, do you have a video showing how to make magnets that are resistant to high temperatures (resisting 950 degrees or 1000 degrees) I want to use this magnet in aluminum melting furnace? I want to pick up iron from the bottom of molten aluminum
Brilliant concept man... but your alignment (120 deg. rotation) will drop your efficiency drastically as the fields will interfere, rather than compliment each other.
@@drasticg I may have "spoken too soon". My (hobbyist) experience here is with old school, tube amplifier output transformers (OPTs). I've even wound my own using microwave oven transformers (MOTs). We are always careful to align Left & Right OPTs at 90deg. to each other to prevent electromagnetic "cross-talk" between the channels. Putting them "in-line" creates a much larger (combined) magnetic field and we do NOT want the L/R channels combined, obviously. I realize that you've removed the secondary coil. You now have (what we would call) an inductor coil or choke. In my application, this is used to resist changes in current flow. In your application, it freely induces the magnetic field. I'm thinking now, if the coils are all wound in the same direction, alignment may not matter. The winding direction matters because you want the magnets to "agree". (see the right-hand thumb rule) It seems that you've used identical MOTs and you've oriented the input terminals all the same. Shouldn't be a problem there. Let's say your "center post" is North, the outer legs would be South, the fields agree aaaand Bob's your uncle. Somewhere (?) I have a Tesla (magnetic force) mapping software that I've used to space my transformers and HV circuits to eliminate exactly what your goal is. It shows graphically the relationships (influence) between nearby magnetic fields. Unfortunately, Elon Musk has ruined any web search for "Tesla mapping". I have a dozen or so MOTs in the garage. Now I'm too curious and I'll have do some monkeying around this weekend. Two should be enough to do some orientation vs pull-test trials. Keep in mind that your battery charger is current limited for protection, a car battery will NOT be limited and may dump outrageous current into the MOTs. Again, I'll do some dick'n about on this and post here. Full disclosure... I'm a Tool & Die Maker and Mech. Eng. , electrical "toys" and electronics are merely a hobby of mine. I am certainly NOT an authority. At any rate "G", I'm definitely a fan (and new subscriber) of your channel. You have a great attitude and manner about your presentation. Cheers from Canada ! Hey, did you ever get a chance to see "The Mona Lisa Twins" at the Cavern Club ?
I dont know where the caven club is and where is it? You may be a hobbiest but you know 1000% more than me lol i wish i could of picked your brain before i started this project and what do you think would beva good power source? Thanks Gareth
😀Hello Gareth I have my phone back yaaay data speed ! That is a Cool super magnet you made 😁 There's monster Trucks now..Gareths monster magnet ! Looking forward to video with that pulling out items Now you can pull out motor bikes better..and cars! 😊 SOOO COOL ! 😎 Take Care x🤗 Hugs ❤ ☮❤🕊 🌹🐝 😊
This is almost exactly what I hoped you were building! I was thinking of a grapple instead of a magnet. Couple questions: how will you keep it on the tow path and out of the canal? And is it waterproof?
I was wondering along the lines of counterweights and/or anchors. Obviously you don't want to sink something into the stone of the tow path but maybe an anchor point well back in the grass (where available) might keep you, your magnet, and your crane above water level.
Gareth that circular part with the 2 wires on is a high voltage capasitor that holds a lethal charge you must always discharge it as soon as you open a microwave and the magnatron has a dangerous chemical on the probe that's linked with cancer plz be careful next time you do this we don't want to lose the best magnet Fisher out there although that was a great build. Lol all the best
They still use it pal I'm a domestic appliance engineer and went on a training course for microwaves with Samsung less than 2 weeks ago and they was still using it then.
I'd be more worried about the capasitor than the magnatron. An engineer working for Mark's and spencers was killed due to a shock off one a couple of years ago. You can Google it and read the story, they are so so dangerous, you have to cross the terminals on the capasitor to discharge it then it's safe to work with. (Insulated needle nose pliers are what we use)
You missed a critical step Gareth. First, Remove the fuse from the plug and then cut the plug off the wire. There will always be a plank who will plug it in if it is left alone.
@@drasticg I mean the loose cable. When you get electricals that you are tearing down, just chop the plug off the mains cable. It stops muppets from plugging in bits of wire and getting shocks. The council here if you are getting them to take away a freezer or fridge ask you to chop the plug.
Wow, that's a major departure from your usual stuff, I didn't know you were doing anything like this, what I will say is, the cable you used to connect the magnets together was normal 13 amp flex, you should have used something much thicker, because at 12 volts that could probably draw over 50 amps current, maybe more, you should have given it a decent dry, on land test before sealing it in resin. What sort of pull will this have? More than one of your large magnets?
Is there a way of making my beast magnet into an electromagnetic? I’m sure at school (20 years ago ) we used to wrap a wire around the magnet and then add power
How do you know which coil out of the transformer to use? I want to make a single one just the clean up all the metal slivers from cutting grinding.... on the bench, floor...
Hello. I used 12 volts and 12.5 currents. It got too hot after 20 minutes of operation. If I lower the current value, would I use it longer? Will I experience a decrease in my usage power? How much current should I use at most?
honestly, you caught me off guard again. i really thought it was a king of random video because of the thumbnail and the title hahaha. jood job though mate
@ 6 48 here...... what was that in the lil tube u squeezing into the resin of the fiberglass liquid stuff................. i figure u r making it more water proof here either way....... which is way smart in the long run of thing's.....
Did you wire the coils in parallel? Also, why did you leave the cores so tall? Seems you would want the cores to be nearly flush with the coils where the field is strongest.
Watch more home made magnet videos HERE ua-cam.com/play/PLREDMDc-MXfT_mhYtuNJZVTFaaxHsZy77.html
This takes magnet fishing to a whole new level, can't wait to see what you find with it. Great video.
Cheers mate im excited to
Hey man ever hear of D-WALT, LOL
Yes mate
Blimey mate, you are turning into a Marvel baddie , The Magnet Marauder ......you'll have the Avengers after you soon!!!!
C'mon Lord B, they had long trousers , acne and their voices were nearly broken......a challenge enough for anyone!!! :-)))
Ha ha awesome comment
Ha ha
Wer also gone have his trousers down.
You need to work out how much current each coil will draw. Measure the resistance of the winding with a simple multimeter, then, work out the current - current = Voltage/Resistance. Make sure the cable you're using can handle that amount of current, also, you'll need higher current rated cable as the voltage will drop over distance, reducing the efficiency of the electro magnets, plus, burn out the cable.
Neat idea though 👍
Or just throw it in the water and see if it breaks if it doesn't its good
Thats probably what will happen
I wish i new more about electronics to test this
@@drasticg I've no doubt it'll work, just that you may lose some of the efficiency from power loss. Then again, it could work a treat 👍 You can get simple multimeter's off Ebay for less than a tenner. 😉 I'm looking forward to see it working 🙂
Cheers mate
I saw a UA-cam video yesterday about some seriously dedicated families of lardons who weigh a combiend 3,000lb (214 stone in real money). I thought that was dedication.
You've just upped the game.
Cheers pal
"Grrrr you made enough money removing garbage from rivers to create a junk yard crane " . Lol.
I do t make much money but what i do make i re invest into the channel for everyones entertainment
At least your hobby is productive. Most people lack there.
First thing you are going to find will be a microwave oven, guaranteed
Hs ha that would be funny
@Magna Carta thats my next build
@Magna Carta hope you hsd a nice weekend
HAHAH RIGHT!
oh awesome. this should be fun and very helpful. now you need to attach it to a boat and drive around the canal haha
also honda makes a good size cheapish generators if you are looking around for one
Ha ha id love a boat
Thanks for the tip
Oh wow you plan on pulling up the Titanic? Lol 😀 You need to bring that to the US and clean our water ways . Can't wait to see how good it works .
Thanks pam and are your waterways as poluted as ours
@@drasticg yes they are and it's a shame that people are like that , But on the other hand we wouldn't be watching and learning from great people like you cleaning them up thank you.
Thanks pam, the more people that magnet fish the more our waterways get cleaner
Love the way u repurpose stuff
Could you build a "Trebuchet " to throw the magnet now . hha ha ha
Ha ha
Just because life can be a bit shit sometimes, I recommend keeping an appropriate fire extinguisher as part of this new kit. Hopefully you'll never need it.
Yes Graham, go on my son. Whole new level league etc. Robomagnet next. 👍👍👍👍👍
*Gareth
Lol why did I put Graham
My name is gareth lol
Begins with a g lol
@@drasticg tiredness mate lol
Very impressed!!
Thank you so much I have never loved anything like this I just bought a 400kg double sided magnet and I’m naming it after your channel drastic☺️😊😁😁😄😃😃😀😍😍 and also love your vids me and my dad watches all of your old vids while we are eating
Sweet thanks mate for nsming it drastic and i hope you find some cool stuff
The best UA-camr thanks
Thankks
Mate you are very smart man to make that very cool I can't wait to see you use it it might be better off on a boat with that crane
Cheers mate and i cant wait to test it in water
Haha lol great video can’t wait for the testing of this lol 😆
Thanks George
Love this nice to see someone do something they love and show others you've been a big part in the magnet fishing scene keep up the good work fella
Cheers shaun i love this message
first thing i thought of when I started watching the mag fishing vids was. lets build a electric mag small and big . Glad to see you have done it already
Cheers pal
I’ve thought about this for a while, awesome. Although you need a few more tools than shown at the beginning of the video.
Pull the Titanic up with that lol
Probably
Well done sir. That thing is a beast. Be careful you don't try to pull piping that is supposed to be there out of the canals.
I will try not to
Don't get that bad boy stuck to the side of the canal 😂 .... Really interested to see how this goes, great vid mate 👍🏻
Thanks pal
Can you make Electro Magnet for home defense? I would like to see something you can hide in door ways and sticks bad-guy to wall or floor.
sounds a good idea
@@drasticg All enemies have something metal. You make great invention you can add to school and churches for 100% security and safety.
Cant wait to see some magnet fishing videos with that thing
Thanks pal
Hubby said thank you for showing how you made it but he's pretty sure it's more than we'll need to magnet fish. But with some of the finds you have it's going to be a must have. Like the motorcycle and scouters you recover. Great idea and inginuitive way to do it.
Thanks susan
You're quite welcome 😊. Keep the videos coming, love watching them.
Cheers
This is what you call creative and innovative.
Cheers james
drasticg No worries, mate. Where did you get your magnets from? I found stuff like this really interesting 👍
I get them from onlinemagnets or amazon
Very good...I have one of these I converted to a single electromagnet the only problem is these microwave transformers are designed to work with mid ac voltage 120 not 12 volts DC.. mine were 5 times stronger using ac...or connect your dc batteries (at least 3 minimum) in series...
So cccccool! cant wati to see the video you use it!! Best of luck!
Thanks mate will be exciting
Brilliant
Really cool, are you creative? My dear brother, do you have a video showing how to make magnets that are resistant to high temperatures (resisting 950 degrees or 1000 degrees)
I want to use this magnet in aluminum melting furnace? I want to pick up iron from the bottom of molten aluminum
Looks really cool!
Cheers
Brilliant concept man... but your alignment (120 deg. rotation) will drop your efficiency drastically as the fields will interfere, rather than compliment each other.
So you have any links to videos so i could see this
@@drasticg
I may have "spoken too soon". My (hobbyist) experience here is with old school, tube amplifier output transformers (OPTs). I've even wound my own using microwave oven transformers (MOTs). We are always careful to align Left & Right OPTs at 90deg. to each other to prevent electromagnetic "cross-talk" between the channels. Putting them "in-line" creates a much larger (combined) magnetic field and we do NOT want the L/R channels combined, obviously.
I realize that you've removed the secondary coil. You now have (what we would call) an inductor coil or choke. In my application, this is used to resist changes in current flow. In your application, it freely induces the magnetic field.
I'm thinking now, if the coils are all wound in the same direction, alignment may not matter. The winding direction matters because you want the magnets to "agree". (see the right-hand thumb rule) It seems that you've used identical MOTs and you've oriented the input terminals all the same. Shouldn't be a problem there. Let's say your "center post" is North, the outer legs would be South, the fields agree aaaand Bob's your uncle.
Somewhere (?) I have a Tesla (magnetic force) mapping software that I've used to space my transformers and HV circuits to eliminate exactly what your goal is. It shows graphically the relationships (influence) between nearby magnetic fields. Unfortunately, Elon Musk has ruined any web search for "Tesla mapping".
I have a dozen or so MOTs in the garage. Now I'm too curious and I'll have do some monkeying around this weekend. Two should be enough to do some orientation vs pull-test trials.
Keep in mind that your battery charger is current limited for protection, a car battery will NOT be limited and may dump outrageous current into the MOTs. Again, I'll do some dick'n about on this and post here.
Full disclosure... I'm a Tool & Die Maker and Mech. Eng. , electrical "toys" and electronics are merely a hobby of mine. I am certainly NOT an authority.
At any rate "G", I'm definitely a fan (and new subscriber) of your channel. You have a great attitude and manner about your presentation. Cheers from Canada !
Hey, did you ever get a chance to see "The Mona Lisa Twins" at the Cavern Club ?
I dont know where the caven club is and where is it?
You may be a hobbiest but you know 1000% more than me lol i wish i could of picked your brain before i started this project and what do you think would beva good power source?
Thanks
Gareth
Now thats intuitive engineering, fan -bloody -tastic 👌🏻
Thankyou mate
😀Hello Gareth I have my phone back yaaay data speed ! That is a Cool super magnet you made 😁 There's monster Trucks now..Gareths monster magnet ! Looking forward to video with that pulling out items Now you can pull out motor bikes better..and cars! 😊 SOOO COOL ! 😎 Take Care x🤗 Hugs ❤ ☮❤🕊 🌹🐝 😊
Cheers mary i cant wait to see what i pull out
Mary Wersonick seesex
Nice one this video is very entertaining and interesting how you made that magnet
Thanks
Great video. Seems like you could've left the fiberglass out and just used regular two part resin.
you will be raising cars and boats with that keep clear of titanic please lol
Ha ha i will try
@@drasticg lol great vid your have all the kids pinching there mums microwave too lol
Imagine ha ha that would be hilarious
@@drasticg lol when i was a lad i pinched my sister pram and turned it in to a go cart lol boy did i get told off lol boys will be boys lol
Yep i guess so lol
shrink wrap means pro :) ordered fibre glass welding blanket to make a bulletproof vest lol, splash it all over like Brut 33, love the vid mate
Brut ha ha do they even selll that any more
@@drasticg brut 33 of course, lol not .smelled like sheep piss
Ha ha
Great video, I can't wait to see it in action!
Thanks tom
Great idea👍
Cheers
That is utter madness, Cannot wait to see this beast in action !
Thanks andy
That looks class can't wait to c it in action
Thanks pal
Really cool gareth
Thankyou
Nice one!
Cheers pal
You will be pulling up cars!!
This is almost exactly what I hoped you were building! I was thinking of a grapple instead of a magnet. Couple questions: how will you keep it on the tow path and out of the canal? And is it waterproof?
Ive not tried to see if its waterproof yet and i will have to carry it down with my crane
I was wondering along the lines of counterweights and/or anchors. Obviously you don't want to sink something into the stone of the tow path but maybe an anchor point well back in the grass (where available) might keep you, your magnet, and your crane above water level.
Yes mate top idea thsnkyou
Nice magnet!! 😎👍
Look forward to seeing it tested. God speed with the generator set up.
Cheers mate im nervous sticking 24pv through this lol
You know what your'e about. We can see your'e a practical man & wouldn't go off half cocked on a project. .
Cheers
This...this is taking the word creative to a whole new level!!!
Pure Genius 👍
Thanks lol
Gareth that circular part with the 2 wires on is a high voltage capasitor that holds a lethal charge you must always discharge it as soon as you open a microwave and the magnatron has a dangerous chemical on the probe that's linked with cancer plz be careful next time you do this we don't want to lose the best magnet Fisher out there although that was a great build. Lol all the best
I read that most microwaves now don't use beryllium, but you can't be too careful as it's nasty stuff.
They still use it pal I'm a domestic appliance engineer and went on a training course for microwaves with Samsung less than 2 weeks ago and they was still using it then.
Thanks for the tip darren
Wow
I'd be more worried about the capasitor than the magnatron. An engineer working for Mark's and spencers was killed due to a shock off one a couple of years ago. You can Google it and read the story, they are so so dangerous, you have to cross the terminals on the capasitor to discharge it then it's safe to work with. (Insulated needle nose pliers are what we use)
I wish I had the knowledge & abilities you do.
I want to see you go fishing with it
I will be doing soon
This is nothing short of amazing. I am lost for words. Phenomenal job! I can't wait to see what happens in the next stage of this project!
Thanks pal im goad you like it
You might be the first person to magnet fish a car 😁
I hope so
Love the new magnet mate. Can't wait to see what you drag out of the deeps with that monster.
Cheers craig
What a beast !!
Looking forward to what you can pull out Xx
Cheers pal
Did not guess that !! Awsome cant wait to see it in action !!
Suprise lol
hung around to the end, waitin' ta see ya try and throw that thing!
Will be testing it out soon
Pretty clever 2 put that 2gether. Cant wait 2 c what u haul with that. Great vid again.
Thanka lisa
You missed a critical step Gareth. First, Remove the fuse from the plug and then cut the plug off the wire. There will always be a plank who will plug it in if it is left alone.
I didnt use the microwave wiring so there is no plug on it
@@drasticg I mean the loose cable. When you get electricals that you are tearing down, just chop the plug off the mains cable. It stops muppets from plugging in bits of wire and getting shocks. The council here if you are getting them to take away a freezer or fridge ask you to chop the plug.
Ok
Really cool video my friend
Thanks tom
Awesome video can't wait to see what that big mother pulls out ⚡👍👍
Me to mate
Just cheered me up seeing this after horror show at the nou camp
Whats the nou csmp
@@drasticg The nou camp is Barcelona's stadium
Oh i get it know lol thanks
@@drasticg forgot to say I love the vids and you are a sound dude who has made me into magnet fishing
Can't wait to see it work, WOW.
Me to mwah ha ha
Can’t wait to see what your gonna pull out with this 👍!
Cheers pal
great work happy fishing 👍👍
Thanks angie
great job that is going to be so big for u ,but u should get a lot with this magnet lol
Hopefully
Oh yessssss Drastic, we is going big time . Congratulations bro looking good, all this and genny on power barrow tracked chassis 👍
I cant wait to use it
I love that magnet and cant wait to see it in action some great additions your adding to your hobby there gareth
Thanks darren
OMG 😮 that’s great lol love it 😊
Thanks ste
Lot us all no when you are going to start making them to sell 🧲
Im afraid its a one off
Good work son cant wait to see it getting used, going luck on your first test.👍👍👍
Cheers mate appreciate it
Wow, that's a major departure from your usual stuff, I didn't know you were doing anything like this, what I will say is, the cable you used to connect the magnets together was normal 13 amp flex, you should have used something much thicker, because at 12 volts that could probably draw over 50 amps current, maybe more, you should have given it a decent dry, on land test before sealing it in resin.
What sort of pull will this have? More than one of your large magnets?
Don't try this at home kids. Can't wait to see what you pull out with this bad boy.👍
Ha ha definitely dont try this at home
Is there a way of making my beast magnet into an electromagnetic? I’m sure at school (20 years ago ) we used to wrap a wire around the magnet and then add power
not sure sorry
How do you know which coil out of the transformer to use?
I want to make a single one just the clean up all the metal slivers from cutting grinding.... on the bench, floor...
Follow the video and it shows you mate
Brilliant work. I really enjoyed watching that
Thankyou it was a bit different
Hope your skills ‘attract’ the attention you deserve!👍
Thankyou tony
You absolute madman :D I can not see this go well at all, but damn if it isn't already great fun!
Ha ha it will be exciting using this for the first time
Walter white from breaking bad wins when it comes to a D.I.Y magnet lol
I totally agree with you there
That's very nice.
Hello. I used 12 volts and 12.5 currents. It got too hot after 20 minutes of operation. If I lower the current value, would I use it longer? Will I experience a decrease in my usage power? How much current should I use at most?
sorry im no expert at electronics
Looking forward to the video when you actually use this and pull all the shopping trolleys out in one go!!! Lol..
A grinder and paint will make you the welder you ain't
Ha ha live that saying
Cool saying
Super 👍
Why have you filled it with fibre glass (mostly resin by the look of it)?
Cheap and waterproof
Can’t wait to see you test it mate 👍
Its will be exciting
Cool great video again
Thanks charlie
honestly, you caught me off guard again. i really thought it was a king of random video because of the thumbnail and the title hahaha. jood job though mate
Ha ha i love king of random channel
You'll pull the plug on the canal with that lol
I hope not i dont want to be responcible for that lol
@@richardclark3838 ? Good luck with that lol but why haha
@@drasticg 😂😂😂😂
Why has he writtern his own name in the message?
I wired mine in parallel and used a 36 volt golf cart charger. Very powerful.
At least you won't have to worry about the heat generated.
@ 6 48 here...... what was that in the lil tube u squeezing into the resin of the fiberglass liquid stuff................. i figure u r making it more water proof here either way....... which is way smart in the long run of thing's.....
Thats just the activator to make the resin go off
Fantastic mate keep going these vids are boss,, from liverpool 🖒🖒
Thanks tom appreciate it
should have tied a knot in the wire after running it through the cover it helps incase the wire is ever yanked
good point
Have to say , your very handy in the diy department gareth , i have a few jobs that need doing here if your not busy ... lol
I love building things and ive always been hands on
Sick!
Cheers zed
That makes getting mopeds a carparts out of the water easy! I'm curious what you will find using that. Sweet idea !!
Me to i csnt wait to find out
Did you wire the coils in parallel? Also, why did you leave the cores so tall? Seems you would want the cores to be nearly flush with the coils where the field is strongest.
Can you make one big enough to disarm someone at your front door?
Ha ha may need a breaking bad magnet
Wow, so damn cool you really put some thought into this very impressed.
Thanks pal