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Off-Topic Discussion => General Discussion => Topic started by: Sandwich on March 20, 2016, 04:21:32 pm

Title: Printable Magnets.
Post by: Sandwich on March 20, 2016, 04:21:32 pm

Let's hear your ideas for applications!
Title: Re: Printable Magnets.
Post by: Phantom Hoover on March 20, 2016, 08:46:37 pm
holding things together
Title: Re: Printable Magnets.
Post by: z64555 on March 20, 2016, 09:28:45 pm
Better motors, of course!

There's also "magnetic gearing" as a possible application, which would eliminate losses do to friction between gears.

Can also to make refrigerator magnets, and reusable car decals.
Title: Re: Printable Magnets.
Post by: swashmebuckle on March 20, 2016, 10:50:33 pm
Superior tearaway pants, duh.
Title: Re: Printable Magnets.
Post by: Colonol Dekker on March 21, 2016, 01:56:55 am
Being freespace in here... reactor containment.

From a professional view, all sorts of ordnance wizardry which would make my old profession a world of hurt. I fear for the EOD world of tomorrow. :(
Title: Re: Printable Magnets.
Post by: zookeeper on March 21, 2016, 05:41:12 am
Free energy, obviously. Duh. :wtf:
Title: Re: Printable Magnets.
Post by: jr2 on March 22, 2016, 05:17:31 pm
Holy shizzle that's cool.


Umm... better maglev trains?  Superior electric car motors + regenerative braking?  Magnetic transmission parts?  Better power generation at any power generation facility?  Finally, cost efficient fusion containment?  A better MRI? A pocket MRI?

Not exactly sure, but I think anything that involves a magnet in its operation could get a boost (unless it relies on the conventional magnetic field and wouldn't benefit from the size or strength being adjusted at all).
Title: Re: Printable Magnets.
Post by: Phantom Hoover on March 22, 2016, 06:23:11 pm
Half the things you just mentioned involve superconduction and won't be affected in the slightest by any advance at all in permanent magnet technology.

Also now that I've watched the video I see that they have in fact just reinvented the Halbach array, as used since time immemorial to make cheap fridge magnets.
Title: Re: Printable Magnets.
Post by: Bobboau on March 22, 2016, 11:43:00 pm
didn't know the name, but I was thinking the same thing while watching it, thought the latching seemed neat.
Title: Re: Printable Magnets.
Post by: jr2 on March 24, 2016, 11:20:50 am
Half the things you just mentioned involve superconduction and won't be affected in the slightest by any advance at all in permanent magnet technology.

Also now that I've watched the video I see that they have in fact just reinvented the Halbach array, as used since time immemorial to make cheap fridge magnets.
didn't know the name, but I was thinking the same thing while watching it, thought the latching seemed neat.

They did an AMA (https://www.reddit.com/r/IAmA/comments/4bns7f/iam_jason_morgan_vp_of_engineering_at_correlated/) on Reddit (and were still popping in to answer questions).   Response:
Quote from: https://www.reddit.com/r/IAmA/comments/4bns7f/iam_jason_morgan_vp_of_engineering_at_correlated/d1bbyxu?context=3
Halbach arrays take an array of magnet in a particular arrangement, and throw all the field/force to one side. What we do is design magnets to have really high strength in attachment, or magnet pairs to have alignment, shear, or spring behaviors.

Edit: In the case of fridge magnets, I think they just magnetize the strips by rolling them over a diametrically magnetized drum or rod.
Title: Re: Printable Magnets.
Post by: Phantom Hoover on March 24, 2016, 11:51:48 am
He's right about how fridge magnets are made, but the reason they do that is that it creates a Halbach array which attaches much more strongly on one side, thus allowing the manufacturer to use a weaker, cheaper magnet.