DIY Electromagnet | Vise For Excelsior Drill Press
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- Опубликовано: 25 июн 2020
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I've always wanted to try making one of these! The force these can apply it's very impressive to me.
Will come very handy to drill plates and square tubings for future projects for sure!
I think these are called magnetic chuck, but I'll use it as a vise so to me it's an electromagnet vise.
Resin that cam be poured up to 5cm thick provided by RESIN PRO:
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Index of operation and materials:
2:14 Open transofmer, cut the wels on the bottom plate with cutting disk on angle grinder
2:40 Take off the primary winding (thick wires(
3:00 Cut off secondary winding (thin wires)
3:40 Cut 50x50mm angle iron pieces with metal cutting bandsaw
4:08 Mounting tabs marked
4:15 Hole driller for nice round corner
4:37 Shaped with metal cutting band saw and 2x72 belt grinder
5:20 Box is tack welded
5:43 Two transformers are connected in series
6:40 Preparation for resin, flat surface with releasing foil and hot glue to seal edges
7:13 Specific epoxy resin that can be poured in 5cm thick layer
7:35 Black pigments added for looks
8:50 Excess transformer body is cut off now rather than earlier to avoid tearing apart the thin plates that makes these parts (if these gets damaged they tend to buzz and make weird noises)
9:18 Filling up with more regular resin to make up for previous pour shrinkage
9:40 Made flat with files
10:06 And polished up to 400 grit with orbital sander
10:26 12V 10 Amp transformer, got one fully enclosed to place inside the drill press. Some good amps are needed for the vise to hold strong
10:40 Connected to drill press switch in series after main switch so I don't forget this on
11:50 holds 80+ kgs, very happy!
Thanks a lot for watching, I hope you liked the video!
Suggestions and comments are welcome.
Leave a like and share to anyone who might be interested!
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Хобби
It is worth to put a diode between the +12VDC and GND in reverse direction, because when the magnets are switched off the magnetic field collapses around them and induce current which have to find a way around. If no way for the current to flow, a voltage skipe will form which can hurt the 12VDC driver circuit.
Any of the 1n400x diodes will be more than enough.
@@ranchsironi7736 : 1N5406 is better. The current can reach 10Amp in that coil.
Absolutely! The current capability of the diode MAY matter under certain circumstances but the voltage rating is of greater importance as any capacitance in the cicuit can cause ringing, hence high reverse voltage across the diode which can easily blow low voltage diodes.
Choose one of over 200v rating for safety. PLENTY of FREE 1N4007 (probably the most ubiquitous rectifier diode on the planet) can be obtained off many scrap electronics boards such as PC PSUs. The 1N4007 has a MORE than ample voltage rating for the job,
The microwave itself has a large hi voltage Diode from the high voltage capacitor to ground
🤯amazing project
Just when I think I can't get any more jealous of your drill press you go and add this awesome hardware! Looking great!
Oh you just reminded me of that great bit from Dumb & Dumber!
"just when I thought you couldn't be any more stupid, you go and do something like this..... And completely redeem yourself!"
Only there's never been anything stupid on this channel - it just gets better all the time ;-)
Best piece of advice I ever heard about microwave transformers came from a RUclipsr: "if you don't know what you're doing, don't mess with them, if you touch the wrong part when it's live it will hurt the entire time you're dying." That was enough for me to just sit back and watch braver men.
that is actually the coolest thing I have seen someone make from scratch! you're a very talented individual, great gob
just remember when doing smaller parts while it is magnetized down, the drill has enough force to turn the part so it would help to use a bit of angle as a fence to help the footprint of smaller/slimmer parts. Fantastic video!
Great tip! Thanks!
I wonder if you took apart another microwave transformer and turned it into a 1000 amp transformer to power it how much more powerful it would be
@@godparticle3833 I think you may need to do a bit more reading on magnetic cores and the saturation they experience! You get no more magnetic flux once the core becomes "saturated", hence the term and for a microwave sized transformer core it is HIGHLY doubtful you'll get much more than 100-150 amps flowing before saturation occurs. Just take a look at the size and weight of a typical MMA welding transformer to see what I mean ... Rare to find an old style transformer of that type capable of much more than about 200-250A (not without a MUCH bigger transformer)! 👎
Great video, thanks and the best part of all your videos is that many of the tools you use are not super expensive machines but comes from your restoring work. I really appreciate this.
Dude, watching you file and sand the epoxy/magnet perfectly smooth was really satisfying. A+++
Real men don't lift [dumb]bells, they file and cut steel by hand.
Its only because he hasn't milling machine to do it.
You knocked this one out of the park dude. Very nice construction and excellent results. Very inspiring. That drill press came a very long way in your care. Well done man.
Amazingly powerful magnet to hold your weight on the tool extension.
All 140 lbs.
I highly recommend to add a strain relief and ground wiring is very important when dealing with metal casing.
Доброго времени суток всем хорошим людям, ты брат не просто мастер, а Мастер с большой буквы 👍👍👍
The safety warning at the start was a very good idea. High-voltage capacitors are a nightmare and they can keep a charge for a surprisingly long time (also remember the stored energy goes like the voltage squared). Back in my electronic engineering days we had a phrase: a "one-mistake power supply" as in you only got to make one mistake with it because that was all it took to kill you. As little as 11 mA across your heart ("eleven mills kills", another phrase we used) can put you into ventricular fibrillation and that's generally fatal.
Apart from that, absolutely beautiful build.
Why are you babbling about high-voltage caps when it was already covered in the video....shut up!
Skin cancer kills too. Gloves welding
Good info. Any recommendations for a method on safely draining the Cap? Was, disappointingly, just glanced over in the vid.
@@wingnutbert9685 As per the video, shorting the terminals with a pair of pliers works very well, as long as the handles are insulated.
@@buroughs I'm "babbling" about high voltage capacitors because failing to appreciate how dangerous they can be is a good way to get yourself killed, instantly. Like you mess up and then you just...stop. Safety warnings bear repeating.
It's not often that I come across something that makes me go, "Damn. That's amazing!" This absolutely does that.
I'm totally making one of these. I'm betting I could add this to a vertical milling machine... 🤔
Wow, that’s a piece of genius. I personally would not have thought of salvaging fairly cheap microwaves for the electro magnets and I definitely would not have done such a professional looking job. That looks produced by a tool company. Well done!
Man, I appreciate! Never expected these electromagnets to be so useful. Thanks for research and sharing.
For more chip resistance to the resin, add glass fibers, and to help additional layers bond better, sand the first one with a rough grit sandpaper and clean up with acetone before adding another layer of resin.
Nice! Could have mixed sand in the epoxy; saves some 60% of epoxy, it will yield a composite with a stiffness close to pure rock, and it would also aid with heat dissipation. SiC grit would have been even more awesome for that. Such a composite had been used quite often for various machine bases.
Great recommendation.
And it would destroy the file or anything else you tried to use to smooth off the surface.
@@HairyNumbNuts Could top it off with a bit of pure epoxy; but yeah better plan things so that you dont need any post machining operations.
I’ve seen others try to make this same build and yours was way simpler! Nice job!
You mean cutting with a handsaw four hours?
EXCELSIOR!!!! Ahh the 3rd mystery switch explained. What a great idea, and beautiful execution, as always. Thanks for sharing!
As soon as I saw you were just gonna handsaw and file that badboy I couldn't help but say
"What a madman"
I said no way he will finish it up this way
I need this. Ok next mission is to make the microwave disappear without the wife noticing.
That’s really beautiful, I love the use of the fillet on the angle iron, and the curves you put into it look really tasteful
Thank you for this. We just replaced our microwave as our old one was getting rusted inside. Now I know what I really want to do with the old one!
Супер магнит, очень даже нужная штука для станка
у сюка молодец бородатый )))
Я так понял он вторички оставил от трансформаторов? !
@@katok.. нет,первички.Вторички там на киловольты
интересно а трансформаторы только от микроволновки пойдут ??
Как раз старая микроволновка валяется))))
Гениально! Аккуратно, практично, удобно.
i love this project. Some brazilian people make the same! Thank you for share!🇧🇷
I'm impressed! Didn't expect it to be so strong with only 6V DC on each coil! Well done!
I saw a video using only one transformer and 12V at about 8 amps. That's less than 100bwatts of power, but he failed to measure the breakaway force because his scale maxed out at 300kg. These things generate amazingly strong holding forces. These transformers could easily handle 1000W of input power for quite extended periods of time. Holding force should be directly proportional to current flow. Iowa, a single transformer might be able to clamp with 3000kg of force and not break a sweat.
@@tonyfremont Yes. It later reminded me of the magnetic security door locks, that pack tremendous force in small packages, also working on 12V DC.
Great work! Never seen that idea before. If I robbed your house, I’m going straight for that drill press 😍 well done
Black Beard, another amazing build, as always. Congrats! My only question is, how does the magnetic vise do heat wise? Doesn't it heat up after a certain time of use?
Gorgeous! I gotta do this!!
When you were pouring the epoxy parts into cups, I thought sure the last one would be 7-up and a couple ice cubes and a straw would finish it off. Now I’m thirsty.
Wow that’s cool! Nice work filing and sanding the surface to that smooth glossy surface. Very clever work!
That's brilliant! I'm curious if this would be strong enough to mill parts on it.
Yes! try this please! I will watch your video too! I believe Make it extreme has some videos on this
I'd be cautious about that. Plunge cuts would probably be fine but side milling would be more problematical (the magnets will have much less holding capacity in shear than in the normal direction).You could certainly use it for surface grinding though as the shear forces are minimal. Most surface grinders use a mag chuck, although often of the permanent magnet type.
Your last video just keep appearing to me in the recommendations.
Maybe for large parts that cover all the magnets surface! But shear resistance is definetly lower than normal. I am able to slide that drawbar a bit if I pull real quickly with all my weight and force! :)
Unless you are talking a large chunk of steel and a tiny endmill then that would be a hard no. Milling vises exert tens of thousands of pounds of force for a reason. Mills slam carbide and high speed steel cutting edges into the part sideways like a jackhammer on meth.
This seemed like a huge wast of time till he actually drills with it. Omg I need this
You made. This build look so easy, great job and thanks for sharing.!!!! I've been waiting for a build like this to come out, now I'm going to make one!!! Best DIY mag Chuck ever!!! Great idea by putting a hole in the middle!
Lovely job, props for all the manual work cutting back the cores.
It is worth selecting the coil polarity to make the two middle core faces opposite poles when you connect the wires. Very difficult to change later unless you bring out all 4 wires.
What's the best way to determine polarity??
@@michaelcoccojr2513 Pass a small current though the coils and see if they deflect a compass the same way or push/pull a small polarised magnet in the same direction.
Великолепное устройство! Особенно для домашних условий. Магнитные плиты намного дороже выйдут, и будет ли в них смысл.
I wonder how long it took you to hack saw the excess metal after your first epoxy pour.
5 days
Exactly 1 scene transmission.
My question, as well. Why not get larger metal for the frame?
@@walte99 Because he would loose height on the drill !
@@walte99 what he had hanging around? I think he is still in lock down]
Damn good idea!
I never thought of using an electromagnet for a drillpress vice.
And now I also know where to find high voltage transformers for cheap in discarded microwaves.
very nice. At first I wondered where it was going but soon saw your intentions.
impressed with this simple but effective build.
Will there be a demagnetizer? Otherwise, the residual magnetization of the part is very difficult to work with later.
all he has to do is connect alternating current do the winding's while the part is on top. he could prob just add a DPDT switch that after he's done milling, will disconnect DC and turn on AC for a second. works very well.
@@electricalfive2248 I must have missed the DC part -- i thought the whole thing was AC -- guess i better rewatch!
@@dziggy3004 10:27 ... The specs shows 12V DC 10 amps output.
I remember Grant (The King Of Random) when you did this
Hands down the best electromagnetic vise build on youtube! Brilliant!
I never imagined it was so simple to make such a tool. your videos are good. congratulations.
Very nicely crafted! Just a couple questions, how would you go about finding out the operating specs? How much current would this draw so as to use the right wire gauge, to not fry the adapter, and to estimate the magnetic flux and thus the maximum force? How do you know that the "electromagnets" will work with 6V each given that they're connected in series?
Should be able to simply calculate it with Ohms law and Power formula.
This man is part Isaac Newton, part Elon Musk, and part Blackbeard.
That's one of the must awesome Project I ever seen on RUclips. I thought this vise was a industrial product but not, that's homemade. 👏👏👏
"The only true source of knowledge is experience" !
That being said... Capacitors have a very compelling way of teaching those whom are inexperienced !
That project is awesome, the quality is on point as always... But that sponsor transition 👌perfect
Curious why you didnt just connect the primary and secondary windings in series, would have produced a stronger electromagnetic force by doing so. Also you didnt mention how the direction of the coils should idealy be in the same (both clockwise or counter clockwise) so the resultant polarity is the same 🙃
I really admire your work man, you literally create pure content keep it up!!
Man you are a genius. Exceptional build. Thank you for all your amazing ideas.
Such a great project! So useful. Really great workmanship in your build. Thanks for posting this video.
With this video you have one subscriber more, it was impressive, the amount of work and the end result, i'm speechless.
Outstanding. There used to be a product called Electrabrake. It was a sheet metal brake that used electromagnets and a floating bar that would hold the work piece. I would love to see Black Beard Projects take his idea further and build his own version of the Electrabrake. Basically the same idea, but using a series of maybe 10 or 12 of the transformers in a row. Anyway, thanks for the great video!
That is one of the sickest DIY projects I’ve ever seen!!! I’m gonna build one!!!
Не представляю, сколько сил потребовалось для шлифовки этой конструкции напильником! НАПИЛЬНИКОМ, КАРЛ!!!!
Вобщем респект Мастеру!
I think that was the best diy product I have ever seen, outstanding
I had two microwave transformers that I I just ripped out to make a couple more lichtenberg machines to burn wood and I came across this. I ordered the epoxy and power supply and will have one of these working in a week or so. Thanks for the video.
Master piece of engeniering. And great idea. No comparison. No challange. It's great honour to be your assistant.
Ok i like to watch your videos without reading the title more interesting to discover what you are going to do and honestly this thing is INSANE.
Video earned an instant smile and chuckle when you welded without gloves. "Been-there-and-done-that" and have the scars to show for it.
This is one of my favorite videos on youtube.
I've seen a lot of hack-ey stuff on RUclips diy channels, but you do some really nice work. A step above most out there.
THAT WAS CRAZYYYY and I have one of these lying around!
I have been wanting something like this to make a flat sanding table, surface grinder type thing for blades... very cool indeed. Outstanding work.... cutting the excess plates... i see that got edited out. Very cool video.
CLASS ! I love the industrial looking of that vice. Thanks.
What an awesome accessory for a drill press! Nice work!
Well... this is freaking awesome...
08:05 Methylated spirits works great to lift glue-stick compound without leaving any marks. The purple stuff gets under the cold glue and causes it to separate from the contact surface. 5 to 10 seconds. Just make sure it gets underneath. Sometimes with heavy deposits, jam a screwdriver in and twist, this will cause a vacuum which will draw in more of the spirits which will make the process go faster. NO MARKS ON SURFACES.
DUDE. That's an amazing magchuck, 100% professional work
Neat! Up until today I didn't know I needed one! Aaaaand it's added to my favourites now!
Very creative, and thank you for the capacitor discharge PSA! :D
Very strong creator, enough for me to watch and follow you every day, God Bless you, Greetings from Alexandria- Egypt
Parabéns, excelente trabalho! Vou construir a minha utilizando este vídeo! Obrigado!
Enjoy each and every project blackbeard does. He has a creative mind and gifted hands. What is next?
Parabéns por seu trabalho deste eletroima, irei fazer um do jeito que você ensinou no video.
That is sweet, I admire your crafting skills 😄👍🏻
I have had one of these in progress for a while. I also have a power supply for 12VDC and 10A. The circuit itself is a near-short, even with a load on the chuck were relying on the internal resistance of the wire. I’m not sure if you’ve tested this much since posting, but the design as presented is quite nice except is has a serious flaw; the heat dissipation into the copper windings and into the iron core isn’t enough if you have a long job or forget to turn it off. You risk a melt down of the wires, or a fire... hopefully the fuse blows before then. When I get a chance I will fully post my build, but if anyone else does this is strongly recommend you watch the temperature rise on the coils. Another option is to use a Car battery, but the heat also skyrockets in this near short configuration.
This comment should be higher up.
Freaking brilliant! I need to make one or more of these!
I will be making one of those!
Thanks for sharing BB
Cheers
I have to admit, that's a pretty awesome mag chuck.
Super zrobiony elektromagnes jaki do tej pory widziałem 👍👏😁
Magnetic vise with center hole. Cool but lots of filing! The restored antique drill press with electronic speed control cool, too.
Very cool, would love to have one for my drill press
I think I have everything I need to do this. What a great project. 👊🏼👍🏼
I like the soldering technique of adding all the solder to the connection and then just heat and add the wire.
A brilliant idea executed with passion!
That is the coolest thing I've seen anyone make! Awesome!
It's awesome that your video quality is 4k. So I am able to watch your videos on full screen without having a bad quality.
This magnet system seems to be really helpful. But doesn't it overheat after working with it for too long?
Clever, clean, efficient, awesome !
This has gotta be the first DIY video I seen where I didnt wanna smash my phone after watching. Good work!
If there's a power failure while you're drilling, the work piece could injure you. I suggest connecting five 2.7V super capacitors in series and then connect that in parallel to the magnet's circuit. Size the super caps to give you a second's worth of power, that way the magnet only cuts out after the drill stops spinning. 10-20F super capacitors (each) would probably be sufficient to prevent injury.
Не стоит. Во первых сам мотор генерирует ток. Во вторых магнитное поле пропадает с задержкой как раз 1-2 секунды.
Great idea. I never think in this, but now I will try to do like you. Thanks
damn that's cool. I didnt think about using a transformer that way. I'll have to try it some time.
i got actual born and raised electromagnets but likely not as powerful.
That's sweet good job. Its looks perfect.
Practical, clean execution... As expected :D Great work mate, keep it up... Cheers!
Hello friends. let us be grateful to our friend who posted this video sharing knowledge. It doesn't cost anything to like and make a simple comment. It is the least we can do in gratitude for his work. thank you!
I came across this looking for DIY electromagnets to use for a homemade sheet metal brake. Awesome build! Now I need to find 10 or so microwave ovens to scavenge the parts from!
damn dude, you're brilliant... wife and i are astonished at this. aloha from hawaii.
What a great build! Thank you.