June 3Jun 3 comment_377135 @lew check this out. This would be my approach with my wooden blind hinges. I'm going to try it sometime. Edited June 3Jun 3 by MrRick Report
June 3Jun 3 comment_377155 I've already got the magnets. Now I just need other uses for them. This one gets added to the options list. Report
June 9Jun 9 Popular Post comment_377440 On 6/3/2026 at 8:08 AM, MrRick said:@lew check this out. This would be my approach with my wooden blind hinges. I'm going to try it sometime.I like this version better. I'm not wild about super glue for long term holding but there's not a lot of other choices with those magnets. Report
June 9Jun 9 Author comment_377448 1 hour ago, JWD said:not wild about super glue for long term holdingTotally agree! Report
June 9Jun 9 comment_377452 Super glue is very strong...Cyanoacrylate (super glue) has a tensile strength ranging from 2,000 to 4,000+ pounds per square inch (PSI). Let's error on the weak side. Let's say the magnet is 1/4" dia. 2000 PSI times the magnet in square inches ( 3.14 x .125Ā² = 0.0490625 inĀ²) x 2000 PSI = 98 pounds per square inch of holding power for each magnet.I'd say there's plenty of strength and holding power for each magnet in that little hinge!! Report
June 9Jun 9 Author comment_377455 28 minutes ago, MrRick said:Super glue is very strong...Cyanoacrylate (super glue) has a tensile strength ranging from 2,000 to 4,000+ pounds per square inch (PSI). Let's error on the weak side. Let's say the magnet is 1/4" dia. 2000 PSI times the magnet in square inches ( 3.14 x .125Ā² = 0.0490625 inĀ²) x 2000 PSI = 98 pounds per square inch of holding power for each magnet.I'd say there's plenty of strength and holding power for each magnet in that little hinge!!Very strong tensile- pulling- but not so much as shear strength- sideways. Report
June 9Jun 9 comment_377459 My Engineering Materials book says the shear strength of cyanoacrylate (super glue) generally ranges from 7 to 25 MPa (1,000 to 3,600 psi) and the tensile strength typically ranges from 3,000 to 5,000 psi (21 - 35 MPa)I don't know what you expect but I'd say that's pretty strong!!Anyways...good enough for these little hinges for sure. Edited June 9Jun 9 by MrRick Report
June 9Jun 9 comment_377461 I don't doubt the book info, but does it compare strength when applied to assorted woods where it may have soaked into pores? Between dis-similar woods? Between magnets and end grain of assorted woods? That is the unknowable variable that won't matter in these small hinged boxes as if they come apart you can always use a drop of wood glue between the woods and use magnets that can be screwed in. Report
June 9Jun 9 Author comment_377463 56 minutes ago, MrRick said:I don't know what you expect but I'd say that's pretty strong!!But that's not what I said... Report
June 9Jun 9 comment_377465 I'm sorry if I misunderstood you @lew What did I miss? Edited June 9Jun 9 by MrRick Report
June 9Jun 9 Author comment_377468 17 minutes ago, MrRick said:On what point lew?Shear strength is less than tensile strength Report
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