3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Heat setting magnets is bad. (lemmy.zip)

submitted 1 week ago by [email protected] to c/[email protected]

25 comments fedilink hide all child comments

So, found out the hard way that you can't apply heat to neodymium magnets. Had 16 magnets to press into a print (tool holder). Thought since the soldering pen I use for inserting threaded nuts into prints works so well, I would use it for this too. And it did work well, but now all the magnets are not magnets any more. Yup, heat will demagnetize them. Part is useless, so had to trash it. Found out something new, but wish I had heard about this beforehand.

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[–] [email protected] 8 points 1 week ago (1 children)

I've used a lot of 12x3mm and smaller magnets without them jumping up and attaching to the print head but I did have it happen with larger 40x10x3 rectangular magnets. It ruined the print and caused a huge clog, but I came up with another way to embed magnets because of it.

I designed a long 10x3 tunnel into the print, printed the object without pause, then slid the magnets into the tunnel. I printed a couple spacers to go between the magnets to place them how I wanted them and I printed a plug to glue into the opening of the tunnel. The plug was a second color so it stood out and made a little accent.

I haven't done it yet but I thought it would be cool to add a little decorative design to the original object to be printed in a second color and make the tunnel plug the same second color and hide it in the decorative design.

[–] [email protected] 3 points 1 week ago (1 children)

My magnets pull towards the printbed when i put them in.

But i also only cover them with a single .2 layer so they keep their strength.

[–] [email protected] 1 points 1 week ago

Of course, if they're on the bottom of the print.