Charlie Harley, #14153 Posted July 29, 2021 Share Posted July 29, 2021 If you take a given magnet, and attach it to a piece of thin sheet metal, and then attach it to a thicker piece, will it hold on tighter to the thicker piece of metal? My wife and I are thinking about building a sheet metal wall that the grandkids can use for magnetic alphabets and figures. We have also seen where people use magnets to attach tubes and ramps and such to build pathways for balls to slide around in. I am wondering if thicker sheet-metal would allow us to use heavier tubes. I appreciate any insight the Saloon can offer. Link to comment Share on other sites More sharing options...
Alpo Posted July 29, 2021 Share Posted July 29, 2021 You are asking that if you took a magnet with 5 pounds of pull, and stuck it on a thin piece of sheet metal, and then put a 6 pound steel weight on the other side of the thin piece of sheet metal, would the thin piece of sheet metal magically make the magnet now hold 6 pounds? I don't think so. Link to comment Share on other sites More sharing options...
Ozark Huckleberry Posted July 29, 2021 Share Posted July 29, 2021 Paint stores also have paint that allows magnets to attach that can be applied to any wall. Link to comment Share on other sites More sharing options...
Pat Riot Posted July 29, 2021 Share Posted July 29, 2021 2 hours ago, Charlie Harley, #14153 said: If you take a given magnet, and attach it to a piece of thin sheet metal, and then attach it to a thicker piece, will it hold on tighter to the thicker piece of metal? My wife and I are thinking about building a sheet metal wall that the grandkids can use for magnetic alphabets and figures. We have also seen where people use magnets to attach tubes and ramps and such to build pathways for balls to slide around in. I am wondering if thicker sheet-metal would allow us to use heavier tubes. I appreciate any insight the Saloon can offer. Read this. It may help. https://www.kjmagnetics.com/blog.asp?p=steel-thickness-calculator#:~:text=What happens if you stick,the pull force any stronger. Link to comment Share on other sites More sharing options...
twelve mile REB Posted July 29, 2021 Share Posted July 29, 2021 8 hours ago, Pat Riot, SASS #13748 said: Read this. It may help. https://www.kjmagnetics.com/blog.asp?p=steel-thickness-calculator#:~:text=What happens if you stick,the pull force any stronger. Good read Pat Link to comment Share on other sites More sharing options...
Larsen E. Pettifogger, SASS #32933 Posted July 30, 2021 Share Posted July 30, 2021 That was kind of interesting. Link to comment Share on other sites More sharing options...
Smokin Gator SASS #29736 Posted July 30, 2021 Share Posted July 30, 2021 It has always astounded me how strong the push/pull force is between a couple of small good quality magnets. Link to comment Share on other sites More sharing options...
Cliff Hanger #3720LR Posted July 30, 2021 Share Posted July 30, 2021 Here an article on magnet pull force on steel plate. Their example is says a 10 pound pull force magnet will saturate at .073" thick steel plate. Meaning the pull fore is the same at .073" steel plate or thicker. https://www.kjmagnetics.com/blog.asp?p=steel-thickness-calculator -------------------- I use a lot of small magnets. Mostly 1/8" cubes and 1/8" round by 3/16" long cylinder magnets. They are Neodymium Magnets with a N48 or N52 power factor. I use them to connect control rods. Right now I have some 1/8" round by 3/16" cylinders that connect straight on. To pull them apart straight away from each other requires more than 2 pounds of force.. It is much easier to slide then to disconnect them. If the two ends get with 6" to 8" of each other, they will pull each other together. SNAP The use you describe could use a sheet metal panel. Not to thin so it bends or gets wavy. I would also not use the strong Neodymium Magnets for children. If swallowed the magnets will do serious internal damage to blood flow do tot he iron in the blood. When I work with these magnets, I do not hold them in my hands very long. I can see the area around the magnet changing colors under the skin. Link to comment Share on other sites More sharing options...
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