How To Make An Induction Gun (Bolt Heater / Buster)

День тому

Link to wiring diagram & STL file for 3D printing the handle: drive.google.com/open?id=1b8q...
Parts ordered from eBay.
Use the following lines to search for the components I used in the video:
"ZVS induction heater 1000w" - Induction heater with fan, 12-36VDC, 20A
"Switch power supply 24v" - Power supply, output 24VDC, 33A
"buck converter lm2596 adjustable" - Buck converter. Used to drop the voltage from 24v to 12v to drive the relay & LED
"12v 40A relay" - Basic automotive style 12v relay (recommend buying a 24v relay because it would eliminate the need for the buck converter. Note: if doing the aforementioned replace the
1kohm LED resistor with a 2.2kohm resistor)
"1/2watt metal film resistor" - (either 1kohm if using the 12v buck converter, OR 2.2kohm if running the LED directly from the 24v PSU)
"push on-off latching switch" - basic latching switch
"5mm LED mount bezel" - used to mount a 5mm led to the enclosure
"5mm led red" - The LED I used was rated for 3.2~3.8v and a max current of 20ma
"8GA wire" - Insulated 8gauge copper wire (I used about 3meters (or 10ft) total length)
"c14 socket" - look for a C14 socket with an integrated fuse holder.
"5mm fiberglass sleeving" - I bought sleeving with an internal diameter of 5mm. Buy about 2meters (6ft) worth (its cheap)
"Split Conduit" - Split cable sleeving to fit over the 8GA cables that go to the handle (20mm or bigger dia, 1.5m long)
"female spade terminal crimp yellow" - Used to connect the 8ga cable to the relay.
"3 core mains cable" - I used less than 0.5m (1.5ft) rated for 240vac, 10amps
"cable gland PG9" - quantity: 4
Optional:
"5mm copper tube" - 5mm dia, 500mm long (1.5ft) I used this to make the 2nd smaller coil in the video
Music: Say Yeah - Topher Mohr and Alex Elena: • Say Yeah - Topher Mohr...
- SCHEMATIX -

КОМЕНТАРІ: 474

@Schematix 5 років тому

Verbal typo at 19:52. To clarify: THIS induction heater won't heat non-ferrous metals. It's just not powerful enough. For heating non-ferrous metals like alloy, brass.etc you need a more powerful induction heater and also the coil frequency plays a major role when heating non-ferrous metals. Sorry for any confusion! - SCHEMATIX -

@JAKOB1977 5 років тому

Nice build.. I am a noob on the matter and its more the concept that appeals to me... so pick up a cheap edition that cost around 3.5USD and been playing with it the last couple of days,. i.imgur.com/6lMr8mP.jpg Was planning to make some recording with thermal to show how the heat transfers and I atm I run it on an adjustable power bank that tops out around 80watt, but for proof of concept and small metal pieces its work brilliantly.. form a 3.5USD product it is able to make fx a 5mmAllen Key completely red glowing, solely from a USB(DC) powerbank.. DP my bad. Have you validated what kind of watt you are able to deliver with your setup and if it's loyal to spec' hence 1000w. would be very easy to put a basic watt-screen in your big casing and also give you a good indication when its in fact heating and when your holding it ideally on the mark' as that can vary greatly and here that amp current-info value is a good indication, for when its done heating and close to topvalue as it will then start to go down' and you don't have to hang butt naked in no mans land, if its heated or not or start looking for glowing identification' that can be difficult to see under some scenarios.

@jameswright528 5 років тому

I'm pretty sure it will heat up the brass and aluminium. Please do a follow up video testing it.

@michaelfitzsimons6173 4 роки тому

@@jameswright528 q

@michaelfitzsimons6173 4 роки тому

@@jameswright528 àbbaßongß

@JAndrioli 3 роки тому

sooo much better to simply buy an induction cooktop and transform it into a gun. Get one second-hand, it's commercial grade and often 1800W or more. Also you get power control built into it . . . these "build" videos just dont make sense

@kkuenzel56 5 років тому

Those inductive heaters were just coming on the scene when I retired from being an automobile mechanic 11 years ago. Would have loved to try one. Being a Technician in Michigan, a torch is an essential tool.

@ryankeane9517 5 років тому

i still carry a blow torch (often i dont have access to power)

@bryanst.martin7134 5 років тому

What!? It's not like you are driving around in salt water... Actually in Fl we do, but Yankeemobiles are rolling Rust.

@awolslaboratory1388 5 років тому

Same here. We had one made by OTC. Was like $3500 back then. I was a full time mechanic in Wisconsin and it worked like a dream on brake fittings. Faster and safer than a gas touch.

@ATLTraveler Рік тому

Are u gay?

@RoadRunnerMeep 5 років тому

Great product, seen these before and for mecahnics they're awesome. Seized bolts are a nightmare and saves you messing around with a torch

@akhtaralimalik989 3 роки тому

I highly recommend your clear presentation of this video . Very clear voice , nicely done ✅ Thanks , keep up the good work David Malik

@kcuhc84 5 років тому

This is great. These things are commercially available at a very high price. If memory serves they are called nut busters or something equally creative.

@brianhaygood183 3 роки тому

$188, so you are saving something, but the parts he is using would cost well over $100.

@easytrick3107 2 роки тому

👍👍👍👍👍

@anthonyvolkman2338 5 років тому

I love ZVS drivers and induction heating!

@fizzyplazmuh9024 2 роки тому

Really love it. Watched my nephew a few weeks ago strip the head on his drain plug while refusing any advice. He couldn't have resisted a tool this cool though. Adding to the to do list now.

@timwells7983 2 роки тому

Excellent video! I’ll be making one of these soon. Thanks for all of the info.

@fredbloggs4829 3 роки тому

Hi mate. The buck converter was a bit of overkill where a single resistor would have done just as well. Great project, I like the fibre glass sleeve idea.

@andrepoelman416 5 років тому

Nice project and presented very informative and entertaining. I can say in all honesty that I've learned something by watching your video.

@Schematix 5 років тому

Thanks for your encouragement! :)

@savvysprocket 2 роки тому

Not sure why I've never had the thought to build one of these. I can't tell you how many times I've anxiously used the torch in an area on a vehicle that I shouldn't have. Great video!

@jeremyhinken3365 5 років тому

You could crimp a ring terminal onto your 24 volt output wire for connecting to the power supply and not have to "split" the wire, more secure connection as well. Nice job!

@shanefrank3281 3 роки тому

Yeah, they are over $400

@johnwick7175 5 років тому

You can certainly induction heat non-ferrous metals like brass aswell. While not as effective as iron or steel because of no heating due to hysteresis losses and relatively low resistance in the material itself, it's definitely possibly, what really matters is if the work piece is conductive or not.

@absalomdraconis 5 років тому

Yep, you could even induction-heat salt water if you really really wanted to.

@jamespowell3712 5 років тому

I think he said that didn't he? You would just need more heat.

@rhiantaylor3446 4 роки тому

Yup, you really want a lossy or slightly resistive conductor and it just happens that many ferromagnetic metals fit this description.

@AlphaMachina 5 років тому

Brilliant idea. I was enthralled throughout this entire video. Subscribed!

@EsotericArctos 5 років тому

This is a fantastic little tool. I could do with something similar when replacing the AFR sensor on the car. I would add protection to the Relay to prevent Back EMF from damaging the Buck Converter. Unfortunately this is not a good DIY project in Australia due to our laws about mains power and requiring a qualified electrical contractor to do any wiring. Unfortunately, no matter how talented someone is, this makes it prohibitive to do as DIY here. Thanks for the informative and well laid out presentation video. That insulation twisting trick works really well on finer gauge cable as well. I recommend it as not only does it twist the cable well, it avoids oils from the skin getting on the cables.

@godfreypoon5148 3 роки тому

Ha. How about fck that regulation for a joke.

@EsotericArctos 3 роки тому

@@godfreypoon5148It sucks a bit, especially when I know what I am doing. Everything, whether it be a simple light switch or a full re-wire, needs a certificate from a 'qualified' electrician and is registered with the appropriate authority. That's the way it works in Australia. Even bloody putting a plug on an extension lead needs a qualified electrician, though most wont do it due to laws about needing molded plugs now.

@godfreypoon5148 3 роки тому

@@EsotericArctos Ah, I thought you were referring to the garbage about non-sparky-ticket-persons not legally being able to touch anything that operates at mains voltages (i.e. appliance internals). This one they can enthusiastically install where the sun does not shine.

@contomo5710 Рік тому

pro tip to make this just a tad bit better, move the capacitors closer to the coil at the handle bar, the current resonates between capacitor and coil, only a little gets added by the mosfets, the way you have it right now, all the current is circulating in the cableling to the handle aswell! if the capacitors are right next to it, it will work better and be more efficent. also edit, at these frequencies (likely around 100khz, the more caps the lower the frequency) 10sqmm wire isnt the same as 10x1sqmm (skin effect) use multiple thinner strands.

@beduiini 3 роки тому

Superb! Excellent video! Very informative, no nonsense just pure information. Thank you! :)

@akhtaralimalik989 3 роки тому

Yes indeed, Excellent presentation and a nice clear speech . Those Asians cold learn from this guy how to make videos .

@dalenassar9152 Рік тому

I am working on ways to switch the ZVS on and off. I have found two simple methods which need only low current/voltage (100mA range) to turn the driver on and off with a low-power bjt (TO-92) transistor. Testing will be finished in a few days. Thanks for the tip on the fiberglass sheathing. BTW: the output of the ZVS is PI x Vin. GREAT VIDEO!!!

@paradiselost9946 Рік тому

not sure if were on teh same wavelength but i modified the ZVS itself with some 2n2222 drivers, slam the gates hard and keep them saturated. rather than the lousy 5w resistor they standardly use. problem with ZVS is they dont like suddenly changing component values. things like, perhaps, sticking large bolts into coils whilst running. that ALWAYS resulted in fets EXPLODING on me... no smoke. no heat. just shards of epoxy encapsulation suddenly sprayed across the room. putting stuff in the coil THEN powering up was fine. they only like steady constant loads. abrupt changes whilst running... BOOM.

@TheLeverHunter 5 років тому

Good job, I like the project and the fact you kept the video simple. You did not waste time on explaining the entire theory.

@garryclelland4481 5 років тому

Lovely build , well crafted , liked and subbed .

@pierre5325 5 років тому

Very enjoyable, thanks, and greetings form New Mexico.

@CDN_Torsten 5 років тому

Excellent video - thanks!

@policedog4030 5 років тому

Looks like just the thing to remove the bolts holding a vintage pickup bed to the chassis - after fifty years the originals won't budge and better than a torch near the fuel lines. Just the perfect amount of demonstration and explanation too!

@Schematix 5 років тому

Glad to hear you found the video helpful :)

@btchllama 3 роки тому

Great video mate, I was wondering if maybe you could make one of these that work of say a ready available 18v tool battery? It could maybe make a good video idea.

@weldyboyr3494 Рік тому

Great job, 30g of steel from 20 to 400 grades C for 60 sec . Excellent power: 450J kg-1 K-1 for 60 sec = 5400J (Ws)/60sec= dizzying 90W.

@k1ngad1 Рік тому

Just watched this , I must say, thank you very much ..... and now for the shopping list....... subscribed .keep up the good work , thanks again 👏👏👍

@aamirhanif8077 5 років тому

Very nice project sir thank you

@fixins 4 роки тому

I like it! Very cool design. Living in the north eastern US, everything automotive is rusted solid in a matter of hours. If I made one myself, I'd like to integrate a momentary switch into the handle to throw the relay as I'd be afraid forgetting it was running might cause a meltdown.

@madscientistlife Рік тому

While you didn't actually make an induction heater you did show how to reconfigure and re-purpose one very well. I found this video after watching a tool demonstration for this tool by a manufacturer who wants over $600(USD) for it. I figured thier profit margins are pretty high as well as the 3rd party who likely manufactured it for the seller to slap thier sticker on it and call it thiers. Anyway great job man! I sincerely appreciate the information brother. Liked and subscribed.

@ratgreen 5 років тому

I'm literally in the process of making my own. I got a 48v version and a big psu. And a 48v relay. Nice handle. I'll be stealing that. Mine heats up an m10 bolt I about 10 seconds. You I've got it so my psu is always on and then the relay applies the power to the circuit board when I press the button. The problem with leaving the circuit board constantly connected is in the few seconds it takes for the psu to fully turn on. The circuit kicks in, doesn't have enough power to start oscillating and pretty much makes a direct short and blows itself up. Just in case anyone is thinking of making their own.

@ggenergyarthurmiller5963 5 років тому

I have had the same problem and the cure is t have an instant 24 volts available. A two stage relay is the cure. The first stage engages when the power supply turns on and the second engages when the voltage reaches 24 volts.

@hardkore360 2 роки тому

would a capacitor large enough and rated for the voltage remedy this? it would be able to hold the charge and then release it on demand.

@manitobaman5588 2 роки тому

Excellent teaching style sir.

@dannywood6842 5 років тому

Nice video, I've been thinking of making something similar for a while. One thing you could have done differently is use a resistor instead of that buck converter for the relay power supply, as you are going 24->12 you just need a resistor the same impedance as the relay coil in series (of sufficient wattage).

@joee8417 4 місяці тому

Or, put a diode in series with the 24vac and half wave 24ac=12vdc

@Re_Doubt 5 років тому

Cool build man! What do you think about using a DPST instead of the relay? Good idea using the relay to trigger the second parallel circuit though.

@Jkauppa 3 роки тому

you could turn that into resistance heater gun if you make the target area coil with thinner wire, or really hot metal glue gun if you have heating target or metal wire passing through the center

@BonesyTucson Рік тому

Good stuff. I love that everyone across the world speaks fluent Dremel :)

@electronic7979 5 років тому

Nice project 👍

@onlyme8870 Рік тому

New to induction since I got an induction cook top. I was curious if this was used for wheel bearing removal. And came across ur video. Just wondering how many coils needed to go over the 77mm hub that's rusted in. I'm learning this now to build one.

@dylanwestphal3582 3 роки тому

I appreciate the way you use the heat-shrink to close off the soldering. You never see that in these videos \m/

@dylanwestphal3582 3 роки тому

And then the crimp-joint XD - spot on

@lf98037 3 роки тому

I have a similar project (box of parts) pending where I selected to use "Litz" wire for a light and flexible heating coil cable that should be more efficient having less transmission loss. I'd like to hear your thoughts.

@joecitizen6755 4 роки тому

Great video ... did you mention what the duty cycle is?

@jafinch78 5 років тому

Cool video! UKposts random AI and I bought most of the materials to make one of these a year or two back for when I swap the exhaust manifolds on the Dodge Ram. I wound up patching with furnace refractory as an adhesive to fiberglass tape with a stainless steel zip tie and haven't had any issues with other than one blow out... so didn't get to swapping yet. I've saved this and thanks for sharing! I'll try to do the same once I get around to. Excellent videos of practical devices that I've found from random appearances from UKposts suggestions. I think the other was the microwave transformer rewind or transformers in general too when I was thinking about rewinding the bug zapper transformer.

@goochi5544 6 місяців тому

LOVED YOUR VIDEO. GENIUS !

@dz1sfb 7 місяців тому

Nice video and good explanations. I got a chuckle out of your shudder to mention an imperial dimension. You could have stated 12.7mm. LOL

@skylanhill 5 років тому

I really enjoyed that, thanks!

@Schematix 5 років тому

Thanks for your support :)

@earthssecretenergy2371 Рік тому

Thank you for sharing

@baytraders 3 роки тому

Great video on this...Could you supply the dimensions of the main enclosure you used please?

@bryang5121 6 місяців тому

Hi, great video by the way. I was curious as to why the induction heater you built here is so much bigger than the commercially sold ones for automotive mechanics and I’ve seen the commercial ones work and they get both glowing within a minute or so.

@SeanHodgins 5 років тому

Tons of useful information here. Would you have any insight into what it would take to heat brass bar? Less turns on the coil? Higher frequency? edit: I know you mention in the end it won't heat brass, but induction heaters are used to anneal brass bullet casings, and used to heat copper pipe for creating clean solder joints. I would guess by the use of eddy currents?

@Schematix 5 років тому

While you certainly can use induction to heat those metals. The induction gun I built in the video has little on brass/copper. I think it's just not powerful enough. The manufacturer claims the unit is rated for 1000w. However, I've only got it to draw around 300w. If I stuffed the coil to the point it's bursting with metal then perhaps I'd be closer to the claimed 1000w. So in summery, I think a more powerful induction heater would be required for metals like copper/brass.etc Perhaps a future video?

@rhiantaylor3446 5 років тому

@@Schematix I was looking at ads for these inverters and noticed that the more honest of the so-called 1000w units claim to be usable at 53volts. That tells me that it will only deliver ~1000w if you use a ~50v supply. It also suggests that at lower voltages you are unlikely to need a 20a capable supply - as your own measured 300w consumption confirms.

@Schematix 5 років тому

@@rhiantaylor3446 The induction heater I bought is rated for up to a max of 36v. So I think you'll be looking at a different model. I do feel that the power ratings are overinflated on most of these affordable induction heaters. And yes you probably could run a smaller SMPS. However, I prefer to run a 30amp SMPS @ 50% duty, rather than a 15amp SMPS @ 100% duty.

@Centar1964 5 років тому

@@Schematix It has to do with the frequency at which the induction is run at to which metals it will heat...

@j.dillner3301 3 роки тому

Use pan head screws in your handle instead of flat head screws in countersunk holes. Those screws will split your housing. Either counterbore or build up walls around your screw heads.

@movikong Рік тому

Nice video!!! I have often thought of making this from an old induction kitchen oven; do you know if this is possible please? Where I live, sometimes old induction kitchen ovens with still functional plates are thrown away for other faults. I would very much be interested in you comments to this. Thanks.

@marklind3033 3 роки тому

What are your thoughts RE: insulation on copper tubing in these designs? Do you have favorite brands? What about silicone-coated sleeves? Do you water-cool the tubing by circulating water through it? What about the diameter of the tubing? Is there an advantage/disadvantage to larger diameter copper tubing and why?

@hopelessnerd6677 5 років тому

Cool gadget. I don't know what I need it for, but I want one. I think i would have printed the handle a little longer and had it cover the coil holder completely. Nice job!

@user-zx7tg4ph5r 2 роки тому

Hey Clive what about modifying a potable induction cooktop to do the same thing by removing the induction element and connecting your modified gun/cable setup?

@DanBowkley 5 років тому

Measure the resistance of the 12v relay coil, put an equal resistor in series with the coil, presto now you have a 24v relay.

@pipercolt1963 4 роки тому

can i use an automotive 12v relay for 110 vac at 2a on the contacts? also thanks for the tip

@Ragnar8504 3 роки тому

@@pipercolt1963 Most likely not a good idea, no!

@thekingsuperd 3 роки тому

@schematix also wanted to ask is that enclosure something specific? or repurposed?

@bennylloyd-willner9667 5 років тому

Good video, I don't think though you need to be so precise with decimals when telling the temp since it doesn't look like you changed emissivity between IR measuring a shiny bolt and then the insulation. It is more like temp on bolt = "pretty hot", and the insulation "not so hot"

@georgepotter353 2 роки тому

I have a question for you as you seem to know a lot about heating wire. I've seen many nichrome wire foam cutters on youtube, but nichrome wire stretches when heated and breaks after a bit. Is there a way to keep that wire from stretching and/or make it a bit stronger ? Can I for instance coat a hacksaw blade with nichrome coating and mount that between two bolts ?

@sntmichael 7 місяців тому

Pretty cool

@missmartamc 5 років тому

Very well explained, thank you. You have the ability to teach a concept well.

@johnricci4511 5 років тому

Seems to me that you could take a thrift store induction cooker (usually 1800w) and just run the output intended for the original coil to a handset/coil setup.

@grandenauto3214 4 роки тому

that's what I'm going to try this afternoon...

@angelr6524 4 роки тому

@@grandenauto3214 so what happened ?

@grandenauto3214 4 роки тому

Talon Mckay it’s still sitting there waiting for me.... I’m going to do it!

@TheMacheteFiloso 4 роки тому

@@grandenauto3214 tell us how it goes please.

@JoeyArispe 3 роки тому

Are you talking about a heat plate?

@davewallace5008 2 роки тому

I would love one of these :)

@harryhino2267 4 роки тому

RE: 12V relay for 24V system, just measure the resistance of the coil and put a resistor of the same value in series with the coil. Make the resistor has the appropriate power rating though!! e.g. If the coil measures 200 ohm, put a 200 ohm/1W resistor in series.

@robwebster1168 Рік тому

Hi, what was your total cost for all the parts after tax? Thanks, love your content.

@hussienhatim3081 Рік тому

شكرا انك عبقري

@Robothut 5 років тому

Nice project. I was surprised to see just how little the parts cost to build. Thank You

@Schematix 5 років тому

You're welcome :)

@pfoxhound 3 роки тому

Nice job!

@Raimundofrios 2 роки тому

Ola, tenho acompanhado seus trabalhos aqui no Brasil .parabéns sempre interecei no assunto desse equipamento pra solda em tubos de cobre. esse da pra fazer ? Quanto custa o valor ?

@AntonioClaudioMichael 5 років тому

Sweet video

@milthon57 4 роки тому

Gonna make one for my car workshop. It will remove easily bushings and old rusty bolts and nuts. better than using a torch. great video

@haraldpettersen3649 4 роки тому

Milthon Chambi - A propper one cost 400 dollars new .

@dalenassar9152 Рік тому

Caution: One thing I have found is that some of these Chinese induction heaters use an IRFP064N (as well as IRFP260N) mosfets...these are only rated at 55v. With a 24v input, you will be applying over 75v to the mosfets, and they will blow! The 260's can handle an input to the ZVS driver of 60v. GREAT videos... how much trouble do you have with blown mosfets in your work???

@henryh3550 2 роки тому

Could one use a power supply from an old desktop computer for this project?

@TheMooster845 5 років тому

I wasn't actually looking for an induction heater at the time I found this video, but I must say, I was very intrigued with your build. I did get a lot of information that I will use on other projects I am working on. So, I say Thank You for your time and effort, in showing me how to build an induction heater coil. One question though, what was the purpose of the resistor that you installed on the LED that you used to show that the coil was powered on?

@jussapitka6041 5 років тому

The resistor is for limiting the current for the led. The voltage a LED needs is usually about 3 volts, and when run from 12 volts the current would be way too high and destroy the led. The resistor limits the current flowing through the led and at the same time drops the 9 volts so the the whole 12 volts in dropped in the circuit.

@TheMooster845 5 років тому

@@jussapitka6041 What size is the resistor and how much voltage gets cut down to?

@realcygnus 5 років тому

cool.....I was under the impression that its mostly about eddy currents/hysteresis & that you can indeed heat non-ferrous/non-magnetic metals with the right coil/frequencies etc.

@Schematix 5 років тому

You certainly can with the right type of induction heater. However, this particular induction heater isn't the correct tool for that job.

@assadibnfourat2082 5 років тому

good morning dear friend... I love your presentations which are very profitable for everyone ... My most sincere congratulations for this excellent and kind work .. Good continuation

@darkshadowsx5949 5 років тому

Hello fellow viewer its a glorious day for everyone who's still breathing this delicious air.. Your comment is very excellent and deserves a brief round of applause from everyone watching this... amazing ... video. ..... Lmao i cant continue this over joyous comment to make fun of Assad. its cramping my fingers and i hate everything...

@thekingsuperd 3 роки тому

@ schematix. ive been trying to source parts. the ZVS heater has a input voltage range of 12-30 volts and a current rating of 20 amps. You utilized a 24v 33amp power supply. i have only been able to source a 12 volt 33amp power supply. was there a reason electrically to use a 24 volt supply vs a 12volt? better functionality?

@artconnolly9519 5 років тому

Awesome video

@chrisosbourn596 Місяць тому

If I were to eliminate the ac/DC inverter and for example use an 18v milwaukee big battery pack wich is straight DC, would I need to put a register or anything other than a fuse in between the battery and Moffett for induction? I want to build a mobile version that uses my milwaukee battery's from work, I already have the battery socket piece to adapt straight into Moffett.

@theGraphicAutist Рік тому

i dont understand how u can change the coil without changing the caps... i suppose it would just change the working frequency but whats the ideal freq for these induction heaters? my homemade one seemed to be quite finnicky

@istvanmeissler2238 3 роки тому

I love the idea of this project BUT the problem seems to be that when looking at induction heaters on Amazon (which I presume are the same as Ebay), the reviews as to quality and reliability are quite poor. The better alternative is the induction heater you made from components, but a smaller version would be better suited to a workshop environment. Thoughts?

@Hitman-ds1ei 3 роки тому

Do you think an old transformer welder would be a suitable power supply

@TheMacheteFiloso 4 роки тому

Where did you get the main enclosure from?

@nitrousman8882 3 роки тому

is this induction heater board self tuning? thanks, Doug

@pallashouse 5 років тому

excellent. I know fa about electricity. but I learned a lot watching this, so thanks. One question. You didn't want to go into the effects of having more coils in the copper tube, that's fine. But very briefly, do more coils make the induction stronger or weaker?

@catch22frubert 5 років тому

The more turns you have, the stronger the electro magnet, as I understand it.

@pallashouse 5 років тому

@@catch22frubert thanks

@TheDemoexpert 2 роки тому

Reminds me of a farmer making a utility equipment! why go through all this work and just modify a induction table top heater! Just disconnect the factory coil and add your homemade ray gun! your done!

@kellyrkeeton 4 роки тому

Did you ever find any formula to making your own coils for it, I know you recycled the original coil, i have been testing making my own coils out of standard 110v solid core I am causing the coil to heat up. how is your coil temp with nothing in it.? have you tried making smaller bolt sized coils? also your extension cable I found if it gets twisted up i pull more current and make eddy in the loop which isnt good..

@fahaadkhan7441 2 роки тому

Really nice👍

@Tera_Hai 5 років тому

Alternatively you could have strung two relay's together in series for the coil and parallel for the contacts and doubled the amp rating of your control circuit or not hooked in the other relay up and effectively use it as a ballast.

@AlphaMachina 5 років тому

I thought about that myself.

@gelenklager 5 років тому

Very good! Going to built one, I can not find Alloy square clamp/Stock , could you let me know the name or a link to this part, thank you

@Schematix 5 років тому

I didn't buy my alloy stock online. Most major hardware stores sell short lengths. If all else fails try ebay.etc :)

@indratallesang8766 3 роки тому

Can this coil heat inner hole for make the hole more bigger??

@sparrow1882 Рік тому

The wire connection between a 'gun' (handle) and the circuit, ist safe?, Coz it becone a coil it self, how about when you turn on the circuit and put a metal on it (cable) will it heat up???

@nigelcordrey3034 Рік тому

I have an induction hob with a smashed glass top. could the parts from the hob be used to make a induction heat gun?

@kylegordon 3 роки тому

This is great, thank you! I had the misfortune to have a need to remove a nut from a 40 year old suspension strut in an enclosed fibreglass space. I had nothing that would work since it needed held in place by a 9/32" crescent spanner whilst a 9/16" ring spanner tried to unsieze the nut. Suffice to say the tiny chamfer started to round off first. My local garage lent me their induction heater, and after a few heating cycles and penetrating fluid, the nut came off with no struggle at all. The induction heater is an absolutely fantastic tool for anyone working on classic cars. I'll be building one shortly :-)

@1960livvy 2 роки тому

Question: On your handle the square aluminium is exposed so what is the voltage across them and is there danger of electrocution ? I should of course preface that with "excuse my ignorance"