Busdriver 6209 Posted September 8, 2021 I have some disc shaped magnets that I want to use for body mounts, but I need a hole in the middle to fix the to a post. Does drilling affect magnetism? Share this post Link to post Share on other sites
alvinlwh 5895 Posted September 8, 2021 Which type? "drilling (or sawing) of neodymium magnets is absolutely not recommended. First of all, the material is brittle and fragile. Secondly, drilling causes combustible dust and, thirdly, the heat caused by the drill can possibly demagnetize the material." https://www.researchgate.net/post/How-do-you-make-a-hole-on-a-Neodymium-rare-earth-magnet-magnet 1 1 Share this post Link to post Share on other sites
Busdriver 6209 Posted September 8, 2021 I’m not sure. They came with a set of magnetic mounts on EBay? Share this post Link to post Share on other sites
Tamiyabigstuff 832 Posted September 8, 2021 I'm sure I've seen these magnets with holes already in them so you can use a screw to fix them to something which is not magnetic. Certainly would not attempt to drill them. 1 Share this post Link to post Share on other sites
Nikko85 3453 Posted September 8, 2021 Yes, if they are rare earth metals they are very brittle and will likely shatter before being drilled. Drilling produces a lot of heat, which serves to shake up the atomic structure, demagnetising them too. Also the dust. I'd get some with the holes pre-drilled myself. If iron magnets, they can take a much higher temperature and might drill more nicely, but I would still avoid. 1 1 Share this post Link to post Share on other sites
Busdriver 6209 Posted September 8, 2021 I feel plan B coming on. Not sure what it is but hey ho!!! Share this post Link to post Share on other sites
Gazzalene 171 Posted September 8, 2021 Be careful with very strong magnets. it will stop the drill rotating,i have read this can effect the Earths rotation? I may get corrected? 3 Share this post Link to post Share on other sites
alvinlwh 5895 Posted September 8, 2021 6 minutes ago, Gazzalene said: Be careful with very strong magnets. it will stop the drill rotating,i have read this can effect the Earths rotation? I may get corrected? Reminds me of this: Give me a lever long enough and a fulcrum on which to place it, and I shall move the world. Archimedes Share this post Link to post Share on other sites
El Gecko 1344 Posted September 8, 2021 7 hours ago, alvinlwh said: Which type? "drilling (or sawing) of neodymium magnets is absolutely not recommended. First of all, the material is brittle and fragile. Secondly, drilling causes combustible dust and, thirdly, the heat caused by the drill can possibly demagnetize the material." https://www.researchgate.net/post/How-do-you-make-a-hole-on-a-Neodymium-rare-earth-magnet-magnet They don't mention that the combustible dust is also quite toxic to humans and animals. I don't even like handling broken neo magnets without gloves on, and would never consider drilling one. 1 Share this post Link to post Share on other sites
Busdriver 6209 Posted September 8, 2021 I get it honestly. I promise I won’t do it☠️ Share this post Link to post Share on other sites
Tamiyabigstuff 832 Posted September 9, 2021 16 hours ago, Gazzalene said: Be careful with very strong magnets. it will stop the drill rotating,i have read this can effect the Earths rotation? I may get corrected? Sounds legit - might even cause a space-time continuum paradox... 1 Share this post Link to post Share on other sites
