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Forum topic by mahdee posted 10-31-2016 11:32 PM 561 views 0 times favorited 13 replies Add to Favorites Watch
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mahdee

3828 posts in 1605 days


10-31-2016 11:32 PM

Topic tags/keywords: question walnut oak

Hi,
I was asked to make this container with 2 lids that swing open and is kept closed by 2-two stacks of super magnets. The person wants the walls to be half as thin. How would I go about reducing the thickness of the wall and have the lids close without locks and clips, etc. I have some 1/8” size magnets and am thinking 3 or 4 of them might work but aligning the magnets on the wall and lid would be a pain. Any other ideas??
Thanks.

-- earthartandfoods.com


13 replies so far

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Mikenln

13 posts in 610 days


#1 posted 10-31-2016 11:57 PM

I would look for a iron or steel ring that I could hide in the lid and the put your magnets in the tube. I would alternate N and S towards the lid. If I couldn’t find a ring a would use short straight pieces of iron or steel, long enough to go between a pair of magnets. With either approach you don’t have to be very accurate. The magnets just need to be somewhere under the iron.

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mahdee

3828 posts in 1605 days


#2 posted 11-01-2016 12:00 AM

Excellent idea. I might be able to use a washer. The reason they wanted thinner is to reduce weight so, maybe a very thin washer. Thanks


I would look for a iron or steel ring that I could hide in the lid and the put your magnets in the tube. I would alternate N and S towards the lid. If I couldn t find a ring a would use short straight pieces of iron or steel, long enough to go between a pair of magnets. With either approach you don t have to be very accurate. The magnets just need to be somewhere under the iron.

- Mikenln


-- earthartandfoods.com

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JoeinGa

7723 posts in 1844 days


#3 posted 11-01-2016 12:18 AM

If you cant find a steel ring, cut the heads off a couple 16penny nails and bend ‘em. Cut a groove with a router to inset them in the wood.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

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mahdee

3828 posts in 1605 days


#4 posted 11-01-2016 12:46 AM

Great idea Joe..Thanks


If you cant find a steel ring, cut the heads off a couple 16penny nails and bend em. Cut a groove with a router to inset them in the wood.

- JoeinGa


-- earthartandfoods.com

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johnhutchinson

1243 posts in 1467 days


#5 posted 11-01-2016 03:40 AM

I’d forget the magnets. You still need some kind of positive stop.

How about a bullet catch like the one shown below? You could radius the strike’s edge and set it in a mortise.

-- John - Central Ohio - "too much is never enough"

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mahdee

3828 posts in 1605 days


#6 posted 11-01-2016 04:05 AM

Hey John… Another excellent idea. How small do these come in? They want the wall to be 1/8” thick. currently, it is 1/4”.

-- earthartandfoods.com

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JoeinGa

7723 posts in 1844 days


#7 posted 11-01-2016 12:49 PM



Hey John… Another excellent idea. How small do these come in? They want the wall to be 1/8” thick. currently, it is 1/4”.

- mahdee

Oh gosh. My bad. From your picture I thought the walls were like 1” thick. I guess that tube is MUCH SMALLER than it looks. So the tube is only an inch or 2 wide overall?

Then maybe John’s idea might work. You could “modify” the plate he shows to be round and the screw which is the hinge for the lid would have some metal to bite into for strength.

Hey, I’m certainly no artist, but I tried to give you an idea of what the plate would look like using the “paint” program in my computer.
.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

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Cooler

299 posts in 680 days


#8 posted 11-01-2016 01:48 PM

The rare earth magnets will be plenty strong enough to hold the lid in place.

But note that you have to have them oriented the right direction to work. Easier would be two rare earth magnets on the lid and steel screws into the barrel. Grind off the head to flush and have magnet to steel instead of magnet to magnet.

Rare earth magnets (available at hobby shops and from Amazon.com) are amazingly strong for their size.

-- This post is a hand-crafted natural product. Slight variations in spelling and grammar should not be viewed as flaws or defects, but rather as an integral characteristic of the creative process.

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mahdee

3828 posts in 1605 days


#9 posted 11-01-2016 02:24 PM

I have to look into those bullets and if they are small enough, I can put.the ball on the lid. I like the magnet and steel rod too. Thanks

-- earthartandfoods.com

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LittleShaver

207 posts in 457 days


#10 posted 11-03-2016 01:25 PM

Rare earth magnets should do the trick. To align, here’s what I’d do:
Drill the lids to accept the magnets. Then insert something pointy in the holes (think dowel centers) a sharpened dowel, cut and pointed nail, etc. Align the lid with the body and press the lid to mark the body. Now you should have center points for the other holes.

Consider using rare earth magnets on both the lid and the body, but be sure to get the poles right before you epoxy in the magnets. If you want to force a particular orientation of the lid to the body, align the poles one way on one set of holes and the opposite for the other set.

-- Sawdust Maker

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UpstateNYdude

901 posts in 1820 days


#11 posted 11-03-2016 01:39 PM

How deep are these tubes and what’s the diameter for the inside currently? The only way I could see doing it would be cut or make a dowel to fit tight inside then redrill with a forstner bit of appropriate size, because without the center spur engaged that thing will kick all over the place. If you have a lathe it might be possible also, but I don’t have a lathe and haven’t worked with one enough to offer any advice there.

-- Nick, “I am always doing what I cannot do yet, in order to learn how to do it.” – Vincent Van Gogh

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Cooler

299 posts in 680 days


#12 posted 11-03-2016 01:50 PM

I wanted a way to keep my cell phone’s ear pieces handy. So I taped 1/4” diameter rare earth magnets to each of the wires near the earbud.

I could then join the earbuds behind my neck and pull them apart to quickly insert them in my ears when a call came in.

They held so tenaciously that I replaced one of the magnets with a similar sized steel nut. I was afraid I would end up tearing the wires apart.

If you don’t get the polarity right they end up aligning off center. Indeed to assure that the pieces do align I would add two brass pins with mating holes to guarantee alignment.

You also will need a very strong adhesive for the magnets. Probably epoxy, but E6000 might do.

In small quantities I get rare earth magnets from Michael’s hobby shop. I drill to make them flush using a small forstner bit. (My spell checker does not like “forstner”).

-- This post is a hand-crafted natural product. Slight variations in spelling and grammar should not be viewed as flaws or defects, but rather as an integral characteristic of the creative process.

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mahdee

3828 posts in 1605 days


#13 posted 11-03-2016 01:59 PM

Thanks Dan. Thanks Nick, I think the magnet I have in it is already 1/8” in diameter. The whole thing is 6” long,1-3/4” in diameter.
Cooler, appreciate it; thank you.

-- earthartandfoods.com

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