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post #1 of 22 (permalink) Old 11-24-2016, 09:21 AM Thread Starter
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Default fixing magnets

I want to use some rare earth magnets on a trinket box lid to keep it closed.

How do you keep the magnets in place? i tried before but the lid magnet just kept pulling the lower one out of its socket.
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post #2 of 22 (permalink) Old 11-24-2016, 10:10 AM
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epoxy. CA glue works pretty well, but I've had it come loose.
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post #3 of 22 (permalink) Old 11-24-2016, 10:43 AM
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What Doug said (epoxy). I've never had a failure with the epoxy method.
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post #4 of 22 (permalink) Old 11-24-2016, 11:07 AM
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tighter socket and epoxy...
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post #5 of 22 (permalink) Old 11-24-2016, 12:14 PM
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I epoxied one to the side of my drill press to hold the chuck key but it did let go 15-20 years later. Then I realized that it will either stick to the DP or the chuck key so I didn't bother gluing it back on. These magnet cups that Lee Valley sells are supposed to hold the magnet in place. They are supposed to have a greater attraction that anything it comes into contact with. Maybe for insurance use the cup and some epoxy. Cups, Discs and Washers for Rare-Earth Magnets - Lee Valley Tools

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post #6 of 22 (permalink) Old 11-24-2016, 01:07 PM Thread Starter
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This is a small box and I'm using 3mm wide magnets, so the cups wont go in. I've used superglue but with mixed effect.
I have a two part glue, I'll try that on a scrap piece.
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post #7 of 22 (permalink) Old 11-24-2016, 03:16 PM
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My vote is epoxy. I've had some CA failures.

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post #8 of 22 (permalink) Old 11-24-2016, 03:58 PM
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Did a pet door project with a swiveling bar to keep the door from opening. Tight fit for the magnet and CA. That was three years ago and so far, so good.

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post #9 of 22 (permalink) Old 11-24-2016, 04:59 PM
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One thing you could do is what ever you are using for the magnet to connect to make it very small. The smaller it is the less it will pull on the magnet when you open the box. The box being small it shouldn't take much to hold the lid shut.
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post #10 of 22 (permalink) Old 11-24-2016, 05:54 PM
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The ones I have all have a hole thru the center.

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