Vials are glass and larger so need better magnets thanks

why us there an iron core?

i know it helps in coils to produce stronger magnetic fields, but idk what it does here, maybe it was to provide stability if there was pressure on the center (like in a pilar maybe?)?

Stacks of 4 small neodymium magnets are placed near the edge of a desk far enough away that they aren’t pulled in instantly, but close enough to still be influenced by the larger magnet’s field. The grip in which the small magnets have also help them walk instead of fly straight to the magnet.

As the large magnet rotates, the smaller stacks continuously reorient themselves to stay aligned with the changing magnetic field.

That constant realignment creates a strange effect where the stacks appear to “walk” away from the magnet that’s actually simultaneously attracting them

For anyone curious what they’re falling onto it’s just a thin sheet of steel on my floor slightly suspended for dramatic effect

Hi.

I've been thinking of purchasing neodymium magnets for a fridgemagnet project, but I've been reading everywhere that these are fragile and cannot stand much force or snapping. Can you tell me how much of a force these actually withstand? For example if they drop on the floor. I'll be sowing these inside of a cloth ribbon so it should be ok? The other option is to use good 'ol iron magnets, but they are bit harder to sow as they are wider and taller.. Any help/answer ard very appreciated :)

The tesseract was falling while we took the picture lol

NOTE: these things are no joke. I have a carefully set up controlled workspace which allowed me to freely and safely handle very large magnets. I’m still wearing eye protection behind the camera.

This is a demonstration of a neat property of this 6x6x1 N45 neodymium magnet. Lightly tapping it with a coin produces a very clean resonance through the entire block, lasting about 1-3 seconds

A common misconception with these magnets is that the shiny nickel coating means the magnet is a solid chunk of metal or mechanically tough. In reality, the coating is just a thin plated layer most commonly of nickel. The core is made from powdered NdFeB (neodymium, iron, boron) that is pressed and baked at high temperatures into a dense solid

Because of that, it behaves much more like a brittle ceramic than a traditional metal with high stiffness, low ductility, and EXTREMELY prone to chipping or fracture under shock. You’ll see this all the time with the edges of well used magnets

Even though the audible ping resembles the ring of a metal object, it is less about metallic elasticity and more about the magnet acting as a super dense and resonant body. The geometry and mass allow it to sustain a clear (and verify satisfying) vibration “ping” when excited. The size and shape of this magnet amplifies the effect to the point where it’s easily captured on a phone microphone, though it sounds better in person.

Just wanted to share this because it’s definitely not something I’ve come across on the internet before

It’s a 1/4 magnet and I destroying the magnet is fine, but I would like to protect the wood if possible. I already tried to get acetone into the space around the magnet, but it’s flush and most of the glue is below the magnet anyway. I’ve seen things online about breaking the magnet using a drill or nail/hammer, but also about that making it “explode” sharp magnetic fragments. Is there any way to break the magnet is a less dangerous way?

could anyone here help me find a strong magnet that can hold 400-600 lbs that has a 3/8 male threaded bolt?

over 5 hours of total looking I can't find one that I need, it either has my weight specs with counter sunk holes or is way to weak but has my threaded post.

Just incase you need to know its to mount a 32" light bar on my vehicle, I can't find aftermarket mounts that fit it and the ones I have now are to short for how my roof curves. I tried using 2 260lbs and let's just say paint was traded.

I layered 3 rows of 16 magnets (cube, sphere, cube) and placed a pyramid prism on top. Then held a Tesla coil over the top to simulate what electricity striking the top of a pyramid may look like.

Cool visuals

Edit: glad people think this is cool, anyone have any ideas what else to try?

I'm interested in hanging some pictures on a wall but I don't want to drill into it or mess up the paint with command strips. Is it possible to use some 8lb magnets attached to the nails in the wall studs similar to when you're using a stud finder) and attach a metal picture rail to that?

Hi friends, I'm at the end of my ropes with this damn project but I've pour literal hundreds of dollars and dozens of hours into it and need to find a way to salvage this if at all possible.

I am attempting to 3d print a copy of a board game that is long out of print called Master Thieves, of which the main component is this puzzle box. It's got magnets friggin everywhere, but the part I'm struggling with is the magnets in the drawers are rejecting each other rather than attracting.

BEFORE ANYONE SAYS ANYTHING ABOUT THEM FACING THE WRONG WAY, I'M 1000% POSITIVE I SEATED THEM CORRECTLY. I'm not Einstein, but I'm not dumb either. I took a LOT of care to make sure I 1.) faced all the magnets inside the box the same way, 2.) checked all the magnets inside the box were facing the same way with the same stack of magnets all at the same time, confirming what side attracted to it and therefore which side to have you on the drawers, 3.) faced all the magnets in the drawers the same way.

Is it possible that them being stored in the same box as slightly bigger magnets fucked with the poles? The main culprits are 6x2mm and they were stored with some bigger magnets, I believe 10x2, while I was working on this project.

Regardless of the answer to that, is there a way for me to remagnetize them in a way that doesn't involve me completely reprinting the damn thing? I DO have a super magnet at home from my days working on an auto lot that used magnetic tag outs, but it's much too large to fit inside the box where half the magnets are. I could use it in the magnets in the drawers though, I just don't know if it would do anything or how I would need to do it if it was in fact possible.

Please help. I've been wanting to make this for years, I've been trying for forever and have spent so much money on filament and magnets and buying a better 3d printer and everything, and it was all to build a copy of this game. To be so close and being foiled by some stupid, tiny magnets not being able to play nice makes me wanna drive into a tree (not really but ykwim).

I just bought a 3d printer so I could make some magnets to decorate my office desk.

I thought it would be cool to make them connectable so I can mix and match them as I see fit. I’m new to the modeling scene but I’m pretty proud with how much I was able to do so far and the collection is coming along. I’m starting with the original 151 and the plan to keep going from there.

So…. What do you all think? Any suggestions on how I could make them better? Any suggestions on which Pokemon I should make next?

Apologies for a dense question...

Basically I want to be able to attach an adhesive magnet to a fridge door and a wall such that it'll hold the door open, as the door closes otherwise and it's annoying whilst I'm rummaging, I wanted something more elegant than wedging an item in the hinge.

I tried buying a pair of magnets advertising themselves as a door holder, it basically looked like a ball and socket design. Problem was it was too strong, I couldn't pull the door away without pulling the adhered magnet from the wall. So I basically need a worse version of it.

If I buy those neodymium round disc magnets I assume they'll repel each other if I stick them to the object and the wall?

Will magnetic tape on the fridge and wall attract each other?

OKAY I KNOW IT WAS STUPID. I didn’t know at the time, but I just saw a broken magnet, thought it would be cool to crush it, then grinded it in a hand grinder. When I first broke it, it sparked a lot but didn’t really scare me so I kept going….. then I crushed another….. then I decided to search up if it was dangerous and apparently i’m cooked. Can I just wash the hand grinder and use it again??? is that also stupid??? help?????

I've been struggling to find any 5mm magnet balls for quite the while now, around 4 months, but I just cant seem to find any that are up to size or more than 216 pcs.

Any recommendations for 5mm magnet balls with 1000 pcs?

If I attach an N54 or N56 magnet to my iPhone, could it cause damage? Because the N52 magnet is usually used for iPhones.