Really clever idea! You might try painting the copper black and playing with the shutter speed of the camera to get a stroboscope effect that will make the copper look like it's not rotating so fast. Alternately do a really slow shutter speed so the cage is a blur and the sphere stands out better since it moves slowly
Hey, love your videos! I was curious as to whether or not you have considered making content about the potential uses of thermoelectrics in personal temperature control? Like a air-conditioning suit using that thermal fabric of yours alongside a thermoelectric cooling pad.
Or put an optical sensor on the drive, place a slotted disk on the shaft, and use a LED lamp, so that the lamp only shines when there is a view into the sphere from the camera. Will need to be optical simply because magnetic will not work with that massive field. Copper sphere would be best also heavily plated with silver, to reduce skin resistance, or of course if it was cast entirely in silver as well, either pure, or alloyed with copper like coins, so you get a harder alloy, but still with lower resistance.
You beat me to suggesting painting the magnet! It's fine, I'm already subscribed to you. I was going to suggest a bright blue paint to contrast with the red copper.
The fact that the metal casting process you have is so precise that the pieces come out with obvious layer lines it inherited from the original 3D printed pieces is absolutely incredible!
7:55 YOU NEED TO CHANGE AXIS OF ROTATION - that slice is disrupting the eddy current / Lenz’s Law, and the orientation is exacerbating the issue. You're rotating the sphere around the poles, and the slice is along the equator. If you move the axis of rotation to the equator, it will allow for larger, more continuous eddy current loops to form. There’s a short titled “Can a non-magnetic material be stopped by a magnet?” by tamuphysastr that overviews this concept pretty well
Or have a different design for the copper sphere that allows the eddy currents to form. The structure of the sphere, with all those holes, is limiting the size of the eddy currents. Try a sphere with bands perpendicular to the axis of rotation. I'd also try it with the cylindrical magnet inside the sphere.
No rotating over the poles. The magnet will always turn to align its poles with the axis of rotation, i.e. so that it feels the lowest forces. For the same reason it starts rotating with the sphere until the speeds match, the eddy currents cease, and it stops levitating :(
It's 100% the shape. It's creating patterns in the eddy currents which want to follow the shape of the copper. Remaking the mold with a band like structure (Think a spherical set of jail bars that meet at the poles) might give a better result. Or, if you wanted to have the bars of copper going along the axis of rotation, clip them in a cage like formation with plastic bars running one way and bands of copper running the other.
I've seen many videos. Your subject matter is impresive. You have mixed foundry with physics and video production all together with your own experience and interests. You have captured me as a follower.
The "sphere" has 60º rotational symmetry, so you can multiply that stroboscope by 6 (n/10 fps): 60RPM = 6fps 120RPM = 12fps 300RPM = 30fps And use a short exposure time (with lots of light) so as not to blur the sphere to help it look stationary.
A stroboscopic light at 1/10 the RPM would give a better effect than changing the exposure, it would also be easier to synchronize with the holes of the copper sphere
@@robspiess I thought that if he matches the RPMs to the FPS it should be enough, because each frame would equal one rotation and would capture the truncated icosahedron on the same position every time, making it look stationary, so we should be able to see through one of the openings as if the truncated icosahedron was stationary.
I mean that's a surefire way to get it to look stationary,but given there is a symmetry in the icosahedron, there are multiple sweet fps spots to get that effect. @@LeonardoG1981
Use a in frequency adjustable stroboscope light in complete darkness while it's rotating. That brings the copper sphere to "stop". Not only for the camera but also for your eyes. Great project, thanks 👍🏻
Cast a thinner/Sand down the inner circumference of the chew toy? Make larger holes in the sphere? Weaker magnet? My thinking is the Hall Effect is overwhelming the power of the magnet because of the volume of copper. Even at slow speeds, there's too much resistence being generated by the sheer volume of copper in relation to the volume/effect of the magnet. In other words, Too much flour, not enough eggs in the cake. Try a larger area around the magnet, a smaller magnet, or less total copper around the magnet via larger holes. One/all of them are your solution. Find a ferrous sphere magnet and see what happens! I bet you could do higher speeds purely because of the MUCH weaker interaction between the materials.
I think the coolest effect is remotely turning it with the 2nd magnet. If you made another stand with the 2nd magnet with a crank handle to turn it, and a housing for the 2nd magnet to hide it from view, it would be a fun trick when you tell people to turn it. Don't tell them ahead of time what is actually going on and it will trip people out.
I believe you are really on to something hear try cooling it down and see what effect you can create. By looking at the replies you've gotten, you've got a good potential for brainstorming this concept, However do not listen to Most highly educated Individuals it'll just slow you down.
Using a smaller ball and thinner copper structure would allow the ball to float longer. You and the audience would be able to see the interaction better, making it more satisfying and dramatic! Then, you may even be able to spin the copper at full speed with and motor or drill and get a fully centered ball!. I’d love to see this! Not to take away from this amazing video!!
@@johnpauly5524 - Yes, lighter ball, but since the ball is a magnet, I’m not sure it can be hollow. Does anyone know if this particular magnet can be made hollow? This could create a new generation of fidget toys!
@@trutwhut6550 If it was possible, I’m thinking he’d eventually calculate and discover the magnets strength to weight ratio. If so, we’d have an awesome follow up video!
I love that you keep all the "repetitive" dialogue in the video. Makes brain feel good. The ceremic slurry, FUSED sillica sand, vitrify the shells, melt out the plastic etc. etc. My personal favorite are the Petrobond videos where you compact the sand and cut out a path for the metal to flow into
The video has a slightly hypnotic, ASMR quality to it. Now make into a long loop where at the end you set down two copper icosahedrons right next to two you’re just starting…then loop the video. Make the run time total if, say, 60min. ✅ASMR-induced sleep: Mission accomplished !
I've never commented on a video before, So here goes. Firstly that copper sphere is really nice, well done. Now mount that circular magnet under a wooden table and attach it to a motor so that it's rotation reacts with the sphere on top of the table. That would look super COOL. 10 / 10 from me.
@@louienoble4179I don't think so. Just part of the routine in order to get an idea of a certain project that needs some figuring out like any other project. In other words, experimenting, which is a genius routine when figuring things out is at hand
Because the sphere is polygonal magnetically the magnet will see a bumpy surface, the join line being down the middle will make it even worse because the magnet only 'sees' loops of copper as electromagnets, and the join line breaks lots of loops of copper which ought to be there. This will make the centrifugal force problem much worse as the magnet is being effectively grabbed by the bumps. I think you could get the effect you want by making the sphere out of a series of copper rings held together by something non conductive. That way the symmetry isn't broken and the ball should levitate smoothly.
Man this video is such a masterclass!!! The process of casting is incredibly well explained, I learned a ton! And also, the video description is outstanding, really really well put together, congrats!!!
I do feel you want to wear some kind of mask with fume protection. No experience on this here but I can imagine the molten plastic residue on the bottom would have produced like some toxic fumes burning to that I feel and it might still be lingering in there plenty when you open it up. Just trying to look out for preventing health issues that's all :)
@@DJMetalstone you should wear a mask when in the room with any 3d printer. They all give off fumes. But with burning off the pla, you're going to be doing that outdoors, anyway, unless you're crazy, so fumes will be less of an issue.
@@ShadowMage3D well when he opened it up wouldn't the fumes get out right in your face ? Just wondering. Since it seems all is kinda trapped inside untill you open it up to keep the heat in. At least that's what it looked like.
Very cool build and process! I also gotta give you props for the details you put into your sound design- most people won't notice it consciously, but you can feel it.
Actually as it is have many holes , this really reduce eddy cuurent as resistance gets larger in the sphere thing and so the the magnet can not have the suspension force like in a solid cylinder so i think this is the most you can get out of it Also the split between the 2 Half's of the sphere reduce eddy current and increase resistivity as there is a layer of air between them ( even if they are touching it is higher resistant that the copper it self ) But awesome design non the less
@popofouad in my opinion the gab between the spheres reduces the current, maybe it would help, if he would use solder to close the gab (but you have to be careful, magnets doesn't realy like heat)
@@unknownxy8026The sphere is not a magnet. It only becomes one momentarily, when a magnetic force changes within or around it. So it should be totally fine to solder it
Best comment. The eddy's are being cut where they would naturally lie and it changes the properties. It need to be solid. Gonna have to look inside another way. At least you can hear if it's floating.
@@sleeplessdev7204the small magnet is acting on the large magnet, the copper sphere is only moving because it goes out of balance when the magnet moves.
this is one of the VERY few videos that i watched all the way through without it just being background also i didn't get bored for a single second which when i realized this it impressed me i really enjoyed this video so i will subscribe to you and i would donate but i can't find the button
That's all kinds of cool, well done! Ideas: 1) Suspend the magnet in the middle of the sphere, then spin the outer sphere up with the drill before releasing it. Might get more levitation that way. 2) With the entire system spinning, hook up a voltmeter to the outer sphere and see what kind of voltage it generates. 3) Consume cookies.
A dutch company called Zytec makes an industrial coupling with a magnetic and a copper disk to make a coupling with no physical connection between the motor and the driven part.
When I worked in a foundry, casting art pieces in bronze via the lost wax method predominantly, we used a compressed air gun with a small jack hammer like fitting to press against the sprue and vibrate the silica shell off of the actual piece thereby saving it from damage, and I can confirm that large pieces of shell falling off was most satisfying, as well as revealing the treasure inside of course. Great to see you doing it in what is essentially a backyard operation. We were a relatively small company and also made a lot of our own equipment including our furnace made inside an old 64 gallon drum.
I think the copper looks amazing straight out of the sandblaster- I don't know why other people have to polish it :) You, good sir, have earned my subscription. You can re-melt the sprues- From the forge it came, and back to the forge it shall return. The way the magnet stays in the hemispheres when you try to fling it upwards reminds me of how mobs in Minecraft get stuck the same way in Minecraft when they stand in honey.
When sandblasting away the ceramic cones that lead to the sphere, if you blast them in a spiral you could get nice ceramic lamp pieces, candleholders and so on. Cones and cylinders lend themselves to very nice spiral making
Hope you can demostrat that the series found in Roman artifact aare actually wood fired heaters small twigs rock slab base rock surround as heat sink very little smoke vidio please
For the ceramic being as hard as it is, it seemed like you were just blowing away fluffy marshmallow with the sand blaster. That was very satisfying to watch.
A brilliant and entertaining piece. I defy anyone who starts watching this video to look away - you simply cannot. As soon as the video started I was on the edge of my seat waiting to see what would happen. As usual, the videography, lighting, editing, and narration were superb. It is always such a pleasure to sit down and spend a few minutes watching a true artist work. Bravo.
I do metal casting also and I agree when you say that after all the prep work, the metal casting itself is anticlimactic. Great vid by the way, I enjoyed every second of it.
@4:25 You said, "Fortunately, most of the time it does (work out)." There's nothing fortunate about it. It's due to your meticulous planning and execution that it all goes well. It's one of the things that I appreciate about your channel.
YT just served your channel to me for the first time, as far as I know. As an electrical engineer, this was very interesting to watch and learn from. Thanks !! and yes, I am subscribing !
Visionary stuff man. Great to see the mix of 3d printing and ceramic preliminaries. 1) Make the interior of the truncated dodecahedron spherical rather than polyhedral. That is, start with a sphere and poke nice holes in it. 2) Once you have a better setup with the drill spinner, match the rotation to the shutter speed so the cage isn't visibly rotating.
Try using a smaller diameter magnet ball. Or even other shaped magnets, smaller than the spehere in the video. Thank you. This was impressive to watch. Excellent 👏
Try freezing the magnet. Reduce the magnet size about 1/3. Fill the holes with copper plugs, every other one, gradually take out one at time, spin, see if fully covering the sphere increases resistance.
The magnet might float better if the two halves had a more ideal electrical connection. The eddie currents are probaly being interrupted at the seam. Maybe some more filing or you could TIG weld them together. This is really cool reguardless.
@@KafshakTashtak Use regular solder or silver solder, lower temp than brazing or welding. if the seams are tinned before soldering it will go quicker with less chance of major heat adsorption.
I'm trying to imagine how far we as a species would have become if all videos on RUclips were like this instead of what it is now. It shows curiosity, experimentation and result. Everyone who saw this is a better person because of it.
● If you put a Teflon-coated SN bar magnet in a circular acrylic tube, coil copper wire around it, and connect it to an ammeter, it will keep revolving forever and draw a few mA of current. ● Incidentally, if you could fix chromium bearings at both ends of your tetrahedron sphere, the friction would be reduced and the sphere would continue to rotate by inertia. If you can make a magnetic bearing, it will rotate much longer because there will be no friction other than air resistance. If both the copper and magnets, which are completely antimagnetic, can be cooled with liquid nitrogen, they can float for a short time with the added effect of the Meissner effect. However, it is advisable to know the limit of the speed of the rotating body, because if the speed is increased above 6500 rpm, the centrifugal force will become too strong and the device will fly apart in all directions. ● In Russia, permanent magnets were fixed to the disk with bolts, high voltage was applied in the axial direction, and when rotated to 6000 rpm, the rotating magnetic field repelled the geomagnetic field, creating a repulsive force that exceeded gravity (self-weight), but follow-up attempts in China, Japan, and the United States all failed. This is because the device was broken by centrifugal force.
This is extremely cool! I adore passion projects like this, going to all the trouble just to glimpse a few seconds of something you predicted could happen. Worth it! Subbed.
Kinda cool when a channel I've been following out of interest in metal casting commits to building an experiment that attempts to demonstrate a physics principal.
Noticed when you were trying to get a better camera angle that the axis was a copper tube. Not sure how practical or if possible but it would be good to have an endoscope camera within the axis tube to get the internal view when it’s rotating.
Make a base with a rotating magnet (hidden) at the right speed so the chamber spins with nothing connected to it, with a floating ball inside. I think that would look really cool.
If you figure out an ideal speed, you could try synchronizing that with a strobe for filming the effect. The left over sprues could be made into candle sticks! Use the torroidal magnet attached to a motor to spin the sphere at just the right speed to make the magnet levitate?
Great experiment Way too many comments (~6K) to read them all, so at the risk of repeating a prior suggestion, consider these adjustments to your apparatus ... larger sphere smaller magnet (and move the separation line as close to one pole as possible with that magnet) thinner shell with larger number of smaller holes (probably not as small as window screen) replace copper with transparent aluminum and go solid ; - ) There really is transparent aluminum (brand name ALON), but it is a ceramic, so conductivity probably sucks (hmm - a quick peak on the net suggests it does conduct at least a little) Availability is listed as 'immediate' for most quantities I did see a suggestion for a motor with speed control - I would add a HEAVY base/support with bearings to fight the vibrations that seem to be inevitable Thank you for your service
A strobing light will give the effect of outer sphere not turning so you’ll be able to see inside easily. Similar to a camera shutter making a helicopter look like the blades aren’t spinning.
You should induce the spin using an external magnet like you did at the end, but using a motor to spin the external magnet. This will keep the magnetic poles perpendicular to the axis of rotation of the cage. The inner magnet would then be spinning the cage rather than the cage spinning the magnet. It should float nicely then.
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Really clever idea! You might try painting the copper black and playing with the shutter speed of the camera to get a stroboscope effect that will make the copper look like it's not rotating so fast. Alternately do a really slow shutter speed so the cage is a blur and the sphere stands out better since it moves slowly
The stroboscope effect would be great to look at!
Hey, love your videos!
I was curious as to whether or not you have considered making content about the potential uses of thermoelectrics in personal temperature control?
Like a air-conditioning suit using that thermal fabric of yours alongside a thermoelectric cooling pad.
Or put an optical sensor on the drive, place a slotted disk on the shaft, and use a LED lamp, so that the lamp only shines when there is a view into the sphere from the camera. Will need to be optical simply because magnetic will not work with that massive field. Copper sphere would be best also heavily plated with silver, to reduce skin resistance, or of course if it was cast entirely in silver as well, either pure, or alloyed with copper like coins, so you get a harder alloy, but still with lower resistance.
You should try a strobe lightand and try to match it to the shutter speed of the camera
You beat me to suggesting painting the magnet! It's fine, I'm already subscribed to you. I was going to suggest a bright blue paint to contrast with the red copper.
The fact that the metal casting process you have is so precise that the pieces come out with obvious layer lines it inherited from the original 3D printed pieces is absolutely incredible!
I also saw thi! It's amazing. Looks like he printed it on some 3d printer from future (that can print precisely with melted copper)
I’m a goldsmith and we can pour metal to 0.2mm thickness. It’s amazing.
Copper is also notoriously difficult to cast and he didn't even mention it O_O
@@bundzmykhailo3733 There are metal 3D printers, but from what I understand they are bulky and work way different to plastic printers.
This is called investment casting. Look up lost wax casting. Been around for a while
7:55 YOU NEED TO CHANGE AXIS OF ROTATION - that slice is disrupting the eddy current / Lenz’s Law, and the orientation is exacerbating the issue. You're rotating the sphere around the poles, and the slice is along the equator. If you move the axis of rotation to the equator, it will allow for larger, more continuous eddy current loops to form.
There’s a short titled “Can a non-magnetic material be stopped by a magnet?” by tamuphysastr that overviews this concept pretty well
Or have a different design for the copper sphere that allows the eddy currents to form. The structure of the sphere, with all those holes, is limiting the size of the eddy currents. Try a sphere with bands perpendicular to the axis of rotation. I'd also try it with the cylindrical magnet inside the sphere.
No rotating over the poles. The magnet will always turn to align its poles with the axis of rotation, i.e. so that it feels the lowest forces.
For the same reason it starts rotating with the sphere until the speeds match, the eddy currents cease, and it stops levitating :(
It's 100% the shape. It's creating patterns in the eddy currents which want to follow the shape of the copper. Remaking the mold with a band like structure (Think a spherical set of jail bars that meet at the poles) might give a better result. Or, if you wanted to have the bars of copper going along the axis of rotation, clip them in a cage like formation with plastic bars running one way and bands of copper running the other.
very good!
What about counter rotating the two halves of the spheres
I've seen many videos. Your subject matter is impresive. You have mixed foundry with physics and video production all together with your own experience and interests. You have captured me as a follower.
The copper sphere is by itself just cool to look at.
Am I the only one that thinks copper and bronze look better than silver and gold?
@@getoffamylan6844 nope, not the only one, copper is my favorite look.
I want one!
Should it not read Neodymium sphere inside a Copper polygon. lol
🐾 _Montréal 🇨🇦_
It's a soccer ball ⚽
11:01 when drilling at n rpm, put the camera to n/60 fps to make it seem like the sphere is not rotating
of have long-enough exposure time to fully blur the sphere at speed
The "sphere" has 60º rotational symmetry, so you can multiply that stroboscope by 6 (n/10 fps):
60RPM = 6fps
120RPM = 12fps
300RPM = 30fps
And use a short exposure time (with lots of light) so as not to blur the sphere to help it look stationary.
A stroboscopic light at 1/10 the RPM would give a better effect than changing the exposure, it would also be easier to synchronize with the holes of the copper sphere
@@robspiess I thought that if he matches the RPMs to the FPS it should be enough, because each frame would equal one rotation and would capture the truncated icosahedron on the same position every time, making it look stationary, so we should be able to see through one of the openings as if the truncated icosahedron was stationary.
I mean that's a surefire way to get it to look stationary,but given there is a symmetry in the icosahedron, there are multiple sweet fps spots to get that effect. @@LeonardoG1981
This thing is going to create so many conspiracy theories when it's found in 2000 years in his basement.
Underrated comment.
How many of the ancient mysterious artifacts were one-off experiments by one or two people?
By that time this would just be some "dumb ancient tech" 😅
@@SyntheticFuture nah, by then it will be forgotten and seem strange, just like the indian sound induced stuff 😂
@@JB-fh1bb yeah,like those dinky little pyramids and monoliths all over the globe. lol. Maybe just a little different. no?
Just give it to a flat-earther or area 51 fanatic now and watch the conspiracy theories fly 😂
Use a in frequency adjustable stroboscope light in complete darkness while it's rotating. That brings the copper sphere to "stop". Not only for the camera but also for your eyes.
Great project, thanks 👍🏻
Try using a somewhat smaller spherical magnet. Something with less mass. Very cool !
Underrated comment.
Yup!
I'd use a small magnet.
hollow sphere supermagnet? Even a bunch of those bucky ball magnet toys of tiny magnets on a thin sphere would be cool
Cast a thinner/Sand down the inner circumference of the chew toy?
Make larger holes in the sphere?
Weaker magnet?
My thinking is the Hall Effect is overwhelming the power of the magnet because of the volume of copper. Even at slow speeds, there's too much resistence being generated by the sheer volume of copper in relation to the volume/effect of the magnet. In other words, Too much flour, not enough eggs in the cake.
Try a larger area around the magnet, a smaller magnet, or less total copper around the magnet via larger holes. One/all of them are your solution. Find a ferrous sphere magnet and see what happens! I bet you could do higher speeds purely because of the MUCH weaker interaction between the materials.
The layer lines showing up in the cast is not something I was expecting. Really a testament to how effective and precise your methods are. Well done!
then go make your own
Never seen such clean casting anywhere, Bravo
He sandblasted them
@@pahom2 even still, the purity is nice
@@Kryptic712 It's the temperature. He also didn't show if he removed any slag.
Plug in your Tesla Coil and let the magic begin
That is because he is not from china where all they do is turn out low quality defective crap
Bro. Watching Dan da dan then seeing your thumbnail. It's too much 😂. Great video!!
I actually binged the show in a day
I think we just witnessed a rather impressive collection of skills and imagination. Well done.
@@gordonmorrow4720 truly
Yeah
Today, a skilled craftsman like him is a rare and dying breed
...and tools!
@@ladyperson9462 His video editing skills and body cam are just as impressive
I'm a simple man. I see gravity defying things. I enjoy. I like.
Literally couldn’t agree more😂
Yes.
Nora japan
Gravity is a delusional theory
Ÿëş
I think the coolest effect is remotely turning it with the 2nd magnet. If you made another stand with the 2nd magnet with a crank handle to turn it, and a housing for the 2nd magnet to hide it from view, it would be a fun trick when you tell people to turn it. Don't tell them ahead of time what is actually going on and it will trip people out.
gearbox drive,no touching parts?
It would be like magic! Lol! Of course, anything that someone doesn't know how it works could seem like magic too.
I could trick my friend so good!😂
I believe you are really on to something hear try cooling it down and see what effect you can create. By looking at the replies you've gotten, you've got a good potential for brainstorming this concept, However do not listen to Most highly educated Individuals it'll just slow you down.
He could make a wooden base that contained a rotating magnet to "wirelessly" rotate the "sphere".
Looks like sigma's balls from overwatch 😭😭
sigma balls
The quality of your casting alone deserves a subscritption (and you'v earned mine). Well done!
The exact reason why i subscribed as well
Best i've ever seen
Just mad fabrication skills. Very impressive.
Glad you did. This man is a Genius amongst lazy fools
You've
Using a smaller ball and thinner copper structure would allow the ball to float longer. You and the audience would be able to see the interaction better, making it more satisfying and dramatic! Then, you may even be able to spin the copper at full speed with and motor or drill and get a fully centered ball!. I’d love to see this!
Not to take away from this amazing video!!
Thinking smaller lighter ball… maybe even hollow?
@@johnpauly5524 - Yes, lighter ball, but since the ball is a magnet, I’m not sure it can be hollow. Does anyone know if this particular magnet can be made hollow? This could create a new generation of fidget toys!
@@mixmeow
Maybe? Neodymium is basically charging metal to get magnetic effects but it'd probably reduce the magnetism.
@@trutwhut6550 If it was possible, I’m thinking he’d eventually calculate and discover the magnets strength to weight ratio. If so, we’d have an awesome follow up video!
A smaller ball aka a baller. Get down to south central LA.
I love that you keep all the "repetitive" dialogue in the video. Makes brain feel good. The ceremic slurry, FUSED sillica sand, vitrify the shells, melt out the plastic etc. etc. My personal favorite are the Petrobond videos where you compact the sand and cut out a path for the metal to flow into
the real value is anyone can just click on his video for the first time and not have to hunt down the names of products and tools
First time seeing this channel so it's very nice
The video has a slightly hypnotic, ASMR quality to it. Now make into a long loop where at the end you set down two copper icosahedrons right next to two you’re just starting…then loop the video. Make the run time total if, say, 60min.
✅ASMR-induced sleep:
Mission accomplished !
@@manitoba-op4jx 😂
Would it work using transparent aluminium?
Okaruunn , your other one is here
lol did not expect a dandadan reference here
I've never commented on a video before, So here goes.
Firstly that copper sphere is really nice, well done.
Now mount that circular magnet under a wooden table and attach it to a motor so that it's rotation reacts with the sphere on top of the table. That would look super COOL.
10 / 10 from me.
U mean the cylindrical magnet? Yes, please. And how bout the cage sans spindle "walking" across the table?
frequency of green or opposite colour rotation wavelength
So was this a trick video?
@@louienoble4179I don't think so. Just part of the routine in order to get an idea of a certain project that needs some figuring out like any other project. In other words, experimenting, which is a genius routine when figuring things out is at hand
11:46 For me this remote rotation was easily the coolest part of this video and I'd like to see more of it, more talk about it, that's so rad
Its just friction/resistance. Hes flipping the poles so the other magnet flips to match and turns the copper
maybe put the 2nd magnet on motor & see what happened next?
@@norbertwu8389I thought the same! A motor would make it easier to adjust the rpm to precisely what’s needed for the ball to float stably
Because the sphere is polygonal magnetically the magnet will see a bumpy surface, the join line being down the middle will make it even worse because the magnet only 'sees' loops of copper as electromagnets, and the join line breaks lots of loops of copper which ought to be there. This will make the centrifugal force problem much worse as the magnet is being effectively grabbed by the bumps.
I think you could get the effect you want by making the sphere out of a series of copper rings held together by something non conductive. That way the symmetry isn't broken and the ball should levitate smoothly.
Bussard fusion
Yes, probably a non polygonal circular surface would work better ... Still, I'm positively impressed
I think you may be on to something here; but I see half (slightly less than) circles connected together in end caps with copper screws
What if it was just a copper hollow sphere with holes drilled into it to see inside or slots cut out?!
What if it was more like a tyre or just a ring?
Man this video is such a masterclass!!! The process of casting is incredibly well explained, I learned a ton! And also, the video description is outstanding, really really well put together, congrats!!!
Also, what tips you could give to someone who's new to casting?
A NEW HAND TOUCHES THE BEACON
I started skyrim again yesterday!
@xs1l3n7x same!!
Listen! Hear me and obey!
@@xs1l3n7x same!!
A foul darkness has seeped into my temple.
10:10 you should program a motor and expiriment with different speeds to try and get the ball to stay in the center of the truncated icosahedron
I agree
I think one of the coolest parts of your video is actually the casting method you used! I have never seen that before. It makes me want to try this!
It's called lost pla casting. I've seen it used a few times in videos
I do feel you want to wear some kind of mask with fume protection. No experience on this here but I can imagine the molten plastic residue on the bottom would have produced like some toxic fumes burning to that I feel and it might still be lingering in there plenty when you open it up. Just trying to look out for preventing health issues that's all :)
me as well!
@@DJMetalstone you should wear a mask when in the room with any 3d printer. They all give off fumes. But with burning off the pla, you're going to be doing that outdoors, anyway, unless you're crazy, so fumes will be less of an issue.
@@ShadowMage3D well when he opened it up wouldn't the fumes get out right in your face ? Just wondering. Since it seems all is kinda trapped inside untill you open it up to keep the heat in. At least that's what it looked like.
VERY COOL! LOVED THIS! I think a neat follow up video would be a one where you just play with this for a while demonstrating everything it can do!
Very cool build and process!
I also gotta give you props for the details you put into your sound design- most people won't notice it consciously, but you can feel it.
I noticed this too, really well done.
Actually as it is have many holes , this really reduce eddy cuurent as resistance gets larger in the sphere thing and so the the magnet can not have the suspension force like in a solid cylinder so i think this is the most you can get out of it
Also the split between the 2 Half's of the sphere reduce eddy current and increase resistivity as there is a layer of air between them ( even if they are touching it is higher resistant that the copper it self )
But awesome design non the less
I wonder if "stripes" with a few supporting cross members instead of hexagons would have been better.
@popofouad in my opinion the gab between the spheres reduces the current, maybe it would help, if he would use solder to close the gab (but you have to be careful, magnets doesn't realy like heat)
@@unknownxy8026The sphere is not a magnet. It only becomes one momentarily, when a magnetic force changes within or around it. So it should be totally fine to solder it
I agree I think the split may be effecting it significantly, those two sides need to be brazed together
Best comment. The eddy's are being cut where they would naturally lie and it changes the properties. It need to be solid. Gonna have to look inside another way. At least you can hear if it's floating.
11:46 - this is more interesting than floating sphere for me
Agreed, I'm surprised the small magnet is able to rotate something so heavy from such a distance.
I'd love to learn more about how that works!
And will the small magnet still rotate the sphere if it doesn't have the spherical magnet inside?
@@sleeplessdev7204the small magnet is acting on the large magnet, the copper sphere is only moving because it goes out of balance when the magnet moves.
Maybe it can be used for wireless mechanical gear?
Put it on a scale and spin it
I've designed this in my mind a dozen times. Awesome to see it come to life.
6:38 those print lines were hilarious, made it look like you 3D printed copper
Me omw to be a 2047 3d printed copper merchant called Ez Nazir
@@The_Govermnent (starts etching a complaint letter onto stone)
Shows how fine the resolution of the casting medium was!
Normally, I am very impatient with RUclips videos - I'm a cut to the chase kind guy. THIS video is well worth watching from start to finish. Bravo!
that thing doesn't defy gvavity - bcz there is no gvavity! In this Universe laws of Thermodynamics cannot be broken, its just how it is.
@@OutlawTV89 Good luck with defending your thesis.
@@grandlotus1 I don't need to. Laws of theromodynamics are doing it for me. You cannot defy that. End of story
9:58 Attach a motor.
V8 motors with jets
also attach some ball bearings
Right
@@BlackDeltaOneright?!
he did
this is one of the VERY few videos that i watched all the way through without it just being background also i didn't get bored for a single second which when i realized this it impressed me i really enjoyed this video so i will subscribe to you and i would donate but i can't find the button
That's all kinds of cool, well done!
Ideas:
1) Suspend the magnet in the middle of the sphere, then spin the outer sphere up with the drill before releasing it. Might get more levitation that way.
2) With the entire system spinning, hook up a voltmeter to the outer sphere and see what kind of voltage it generates.
3) Consume cookies.
You might need to make the stand connector piece metal to have somewhere to connect but the voltmeter is such a good idea.
#1 is what I was thinking: Point some air jets to the magnet to make it levitate and remove the initial friction between tha magnet and the cage.
Rotating the copper sphere with the other magnet is something akin to a differential. Very cool.
Magnetic torque converter- could make one with variable magnetic proximity so as to be a clutch/torque converter in one. Good for a gokart.
A dutch company called Zytec makes an industrial coupling with a magnetic and a copper disk to make a coupling with no physical connection between the motor and the driven part.
Don't show this to Dyson. We will end up with really odd vacuum cleaners labeled with pacemaker warnings.
When I worked in a foundry, casting art pieces in bronze via the lost wax method predominantly, we used a compressed air gun with a small jack hammer like fitting to press against the sprue and vibrate the silica shell off of the actual piece thereby saving it from damage, and I can confirm that large pieces of shell falling off was most satisfying, as well as revealing the treasure inside of course. Great to see you doing it in what is essentially a backyard operation. We were a relatively small company and also made a lot of our own equipment including our furnace made inside an old 64 gallon drum.
I think the copper looks amazing straight out of the sandblaster- I don't know why other people have to polish it :)
You, good sir, have earned my subscription.
You can re-melt the sprues- From the forge it came, and back to the forge it shall return.
The way the magnet stays in the hemispheres when you try to fling it upwards reminds me of how mobs in Minecraft get stuck the same way in Minecraft when they stand in honey.
WHAT IS THAT MELODY??!?!?!!
Bro I was thinking of sigma from overwatch 2 also. My man. And also, an American cow hand! Has this dimension shifted time scales?
@jackiesharp973 THE UNIVERSE, IT SINGS FOR ME!!!!!
@@sambamuel reduce your expectations to zero
It's from dying light , if your asking about the sweet drum and bass beat
@@joshuadennis2931 what are you talking about? We're talking about a game
When sandblasting away the ceramic cones that lead to the sphere, if you blast them in a spiral you could get nice ceramic lamp pieces, candleholders and so on. Cones and cylinders lend themselves to very nice spiral making
the possibilities are endless
Hope you can demostrat that the series found in Roman artifact aare actually wood fired heaters small twigs rock slab base rock surround as heat sink very little smoke vidio please
This really deserve a second part, the copper sphere is a cool project on its own
I enjoyed this way more than i probably should have haha. Total visual asmr
Idea: Get a motor you can precisely tune the rotation speed, and a strobe light triggering every 72° of the shaft rotation.
For the ceramic being as hard as it is, it seemed like you were just blowing away fluffy marshmallow with the sand blaster. That was very satisfying to watch.
Yes that puzzled me also. Ive used a sandblaster many times and never had it that powerful to blast through ceramic material like that
I cut through basalt with coal slag in mine.
Sigma from Overwatch: "That music.... it's playing again."
I was searching for a comment like this , and i wonder why you dont have that much like
het universum zingt voor mij
@@Aether564oh it does indeed. Im glad you guys are here by the way. I was beginning to think I was riding solo here
Thank you for making sure to specify the SI units too everytime. That was very useful.
7:38 you can build a Nunchaku out of these - Copper BruceLee 😀
1972 end of life
or keep them and recycle for another time copper is used!
Nah leave Okarun's balls alone man
lol
Got me 😂😂😂
I like your profile pic
Lmfao...that turbo granny
Heheheh...No
8:51 ANOTHER HAND TOUCHES THE BEACON!!!
Perhaps with this magnetic wizardry we can make a dawnbreaker replica
Ever closer to the center of the circle.
Ever closer to the center of the circle.
YES
Lol
This is a remarkably innovative idea, video and workmanship! Extraordinary - I am amazed.
So many people are saying to use a motor while here it is he is using a drill 10:32
A drill is just a motor designed to drill/screw
A motor will hold it at a consistent speed.
3:14 Broly is that you? :D
broly:AAAAAAAAAAAAAÀAAAAAAAAAAHHHHHHHHHHHH
IT IS INFUsed!!! WITH *COPPAAAHH!!*
(Anti-scratch technology, and vibranium rings!)
smarty pants
among us
BROLY IS MADE OUT OF COPPER?!
A brilliant and entertaining piece. I defy anyone who starts watching this video to look away - you simply cannot. As soon as the video started I was on the edge of my seat waiting to see what would happen. As usual, the videography, lighting, editing, and narration were superb. It is always such a pleasure to sit down and spend a few minutes watching a true artist work. Bravo.
A true artist amongst all the other you-tube jerks
I do metal casting also and I agree when you say that after all the prep work, the metal casting itself is anticlimactic. Great vid by the way, I enjoyed every second of it.
You just invented a UFO engine
He did! 😂😂😂
Wdym
@@Pickle_guy-74 It’s a joke. The joke is that it looks like something out of an alien movie.
Like the engine of the Event Horizon, maybe?
You mean discovered induction? The idea that powers most of the world? 😂
@4:25 You said, "Fortunately, most of the time it does (work out)." There's nothing fortunate about it. It's due to your meticulous planning and execution that it all goes well. It's one of the things that I appreciate about your channel.
It's a simple turn of phrase
I like the Idea that a Hotline Miami type soundtrack is always playing INSIDE your sand blaster. 😂
More Cyberpunk I'd say. 🤔
@Gortall yeah, that sand blaster is stuck on the cyberpunk start screen 😂
Very cool, from beginning to end. The 3D printing, the casting, clean-up and execution. Great documentary.
when you put a metal ball between two attracting magnets to make it float:
YT just served your channel to me for the first time, as far as I know. As an electrical engineer, this was very interesting to watch and learn from. Thanks !! and yes, I am subscribing !
This must be one of the coolest casts I've seen.
I haven't seen a cast look as good as this. That ceramic and sandblastic really did the trick
I'm kind of blown away at how good that casting turned out!
Visionary stuff man. Great to see the mix of 3d printing and ceramic preliminaries.
1) Make the interior of the truncated dodecahedron spherical rather than polyhedral. That is, start with a sphere and poke nice holes in it.
2) Once you have a better setup with the drill spinner, match the rotation to the shutter speed so the cage isn't visibly rotating.
I love that you can see the layer lines in the copper
_on_ the copper
1:55 get out of my mind 😂
Try using a smaller diameter magnet ball. Or even other shaped magnets, smaller than the spehere in the video. Thank you. This was impressive to watch. Excellent 👏
This dude engineered a copper sphere, but didn't think of a proper handle to spin 😭😭😭
If you invented zero point energy in your garage you avoid accidents by making it seem like it doesn't work that well
WOW those Castings did come out great !
Try freezing the magnet. Reduce the magnet size about 1/3. Fill the holes with copper plugs, every other one, gradually take out one at time, spin, see if fully covering the sphere increases resistance.
Bro has okarun balls
That is one of the coolest projects I’ve seen on RUclips. Nice job!
The magnet might float better if the two halves had a more ideal electrical connection. The eddie currents are probaly being interrupted at the seam. Maybe some more filing or you could TIG weld them together. This is really cool reguardless.
I thought about him welding or brazing them. The problem is that the heat will spread quickly through the copper, and that might anneal the magnet.
@@KafshakTashtak Some conductive putty might help increasing the contact area.
@@KafshakTashtak Use regular solder or silver solder, lower temp than brazing or welding. if the seams are tinned before soldering it will go quicker with less chance of major heat adsorption.
Would it help to solder the two half's together?
I'm trying to imagine how far we as a species would have become if all videos on RUclips were like this instead of what it is now.
It shows curiosity, experimentation and result. Everyone who saw this is a better person because of it.
You also have to think it was playing with his dogs' toy that gave him the idea. The best ideas come from the strangest places.
Im glad to see something other than another free energy machine
● If you put a Teflon-coated SN bar magnet in a circular acrylic tube, coil copper wire around it, and connect it to an ammeter, it will keep revolving forever and draw a few mA of current.
● Incidentally, if you could fix chromium bearings at both ends of your tetrahedron sphere, the friction would be reduced and the sphere would continue to rotate by inertia. If you can make a magnetic bearing, it will rotate much longer because there will be no friction other than air resistance. If both the copper and magnets, which are completely antimagnetic, can be cooled with liquid nitrogen, they can float for a short time with the added effect of the Meissner effect. However, it is advisable to know the limit of the speed of the rotating body, because if the speed is increased above 6500 rpm, the centrifugal force will become too strong and the device will fly apart in all directions.
● In Russia, permanent magnets were fixed to the disk with bolts, high voltage was applied in the axial direction, and when rotated to 6000 rpm, the rotating magnetic field repelled the geomagnetic field, creating a repulsive force that exceeded gravity (self-weight), but follow-up attempts in China, Japan, and the United States all failed. This is because the device was broken by centrifugal force.
That copper isocosawhateveritscalled is freaking gorgeous! Beautiful work.
Also, your tool collection kills me with envy.
@@ahobimo732 his skill also.
Dude just randomly designing Satisfactory-Warp Core... thingy sh*t...
that sphere will take you to where no man has gone before
This is extremely cool! I adore passion projects like this, going to all the trouble just to glimpse a few seconds of something you predicted could happen. Worth it! Subbed.
Setting up a motor with a stroboscope synced up to show a consistent window into the sphere would be really sick, love this design
12:16 cool watching the magnetic force push your hand down before the ball touches the metal (slowed down to 0.25 speed)
Okay, so the making of the sphere was so very satisfying. Well done.
Kinda cool when a channel I've been following out of interest in metal casting commits to building an experiment that attempts to demonstrate a physics principal.
Hey there, first time viewer to your channel, thank you for also including the metric system, it is very much appreciated!
As for how to improve it, make the external sphere larger, or the internal magnet smaller in volume, that should help.
Smooth jazz, and a closeup of a bucket full of bright yellow slurry… is… is this a homestuck reference?
Homestuck?
bruh oh no
homestuck bot account...
oh lord
I so wish my brain could be this creative, precise and accurate
Noticed when you were trying to get a better camera angle that the axis was a copper tube. Not sure how practical or if possible but it would be good to have an endoscope camera within the axis tube to get the internal view when it’s rotating.
what if you had an endless copper tube with that ball in it? Would the ball stay perpetually suspended?
Amazing work and experiment bro, congrats!
Make a base with a rotating magnet (hidden) at the right speed so the chamber spins with nothing connected to it, with a floating ball inside. I think that would look really cool.
Ed Rooney : "Nine times."
Nine times?
Nine times
Nine times
Lol, I thought the same thing
@@wiesejay 😂
1:50 Smooth jazz, and a closeup of a bucket full of bright yellow slurry… is… is this a homestuck reference?
Great video! Keep em coming please! Looking forward to following you onward if this is the standard, amazing
If you figure out an ideal speed, you could try synchronizing that with a strobe for filming the effect.
The left over sprues could be made into candle sticks!
Use the torroidal magnet attached to a motor to spin the sphere at just the right speed to make the magnet levitate?
"And subscribe for future projects" You're god damn right I will!
Great experiment
Way too many comments (~6K) to read them all, so at the risk of repeating a prior suggestion, consider these adjustments to your apparatus ...
larger sphere
smaller magnet (and move the separation line as close to one pole as possible with that magnet)
thinner shell with larger number of smaller holes (probably not as small as window screen)
replace copper with transparent aluminum and go solid ; - )
There really is transparent aluminum (brand name ALON), but it is a ceramic, so conductivity probably sucks (hmm - a quick peak on the net suggests it does conduct at least a little)
Availability is listed as 'immediate' for most quantities
I did see a suggestion for a motor with speed control - I would add a HEAVY base/support with bearings to fight the vibrations that seem to be inevitable
Thank you for your service
Very pleasing to watch the casting process, We produce 40 tons of iron castings everyday!
Every aspect of this project is wonderfully satisfying
Amazing craftmanship and patience!
What do you think will happen? And if you’re enjoying the video, don’t forget to hit the 👍- it really helps the channel out!
Maybe try a larger copper "sphere" or a smaller magnet.
A strobing light will give the effect of outer sphere not turning so you’ll be able to see inside easily. Similar to a camera shutter making a helicopter look like the blades aren’t spinning.
@@seanbaker1627 Great idea!
soccer ball
You should induce the spin using an external magnet like you did at the end, but using a motor to spin the external magnet. This will keep the magnetic poles perpendicular to the axis of rotation of the cage. The inner magnet would then be spinning the cage rather than the cage spinning the magnet. It should float nicely then.
Not bad for a 1st Video hope you keep it up- you might be good at this!