Instructables
Picture of Trivet from recycled wine corks
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Materials :

*1 piece of wood (eg. oak) of ~ 80 * 3.5 * 1 cm  (32" * 1.5" * 3/8")
* 64 wine-corks
* wood-glue (preferable waterproof)
* wood oil
* sandpaper

Tools :
* Saw, preferable a jig saw
* Cutter knife

Time : takes about a day to complete : mainly because you need to glue a row of corks, and then wait for the glue to dry.
 
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Step 1: Make a mold

Picture of Make a mold
when assembling this pot holder, the corks will be 'squeezed' into the frame. In order to be able to glue everything together (and then keep it that way for a couple of hours) I decided to make a mold.

It is very simple : cut a square hole out of a piece of leftover wood, eg an MDF board. If you want to make a lot of pot holders, you can cut several mold-holes out of the same board. 

Step 2: Cut outsides - assemble frame

Picture of Cut outsides - assemble frame
The inside dimensions of the wooden frame need to be precise : if it is too small the corks won't fit in, if it is too large, they will not stay in a nice square pattern.

After experimenting, I've found out that the inside needs to measure 170 mm (6.7"). I guess that corks are about the same size all over the world, but to be absolutely sure I recommend that you double-check this : squeeze 8 corks in a row, and measure the lenght.

If you want to make smaller (eg 6*6 corks) or larger (eg 10*10 corks) pot holders, you need to adjust the numbers based upon this measurement.

In fact I think that a set of 3 pot holders, 6*6, 8*8 and 10*10 would make a very nice set :-)

If you have experience with cutting wood, you could make a miter joint, which will look more professional.

Then apply glue to the 4 pieces, place them into the mold : this will ensure that the frame is flat and square. Let it dry a couple of hours
SparkySolar1 month ago

Thank you for your nice Instructable.

Rima

This is such a great idea.
slamonella1 year ago
Neat little project, but that's a trivet, not a pot holder.
strooom (author)  slamonella1 year ago
Well thanks slamonella, as I'm from Belgium, I'm not native English speaking and so I didn't know the exact word for it, but nowI know ! thanks
Your English is better than many native speakers, don't sweat it too much :)
It's actually a pot holder, not a trivet.

I know, I invented them 4227 years BC.

So there.
CatalinRO1 year ago
I have a question: how to cut easy the cork? I used a sharp blade, I used a saw blade, but there are 2 problems: cork is kind of elastic material and the friction stops the blade. Thanks!
strooom (author)  CatalinRO1 year ago
I added an animation to step 3 that shows how to cut it nice and easy :-)
Good luck !
cutting-a-cork.gif
OK, I saw it after reloading the page, initially I thought it's only an image, after reloading, I saw the animation. Thanks :)
sgarner11 year ago
Nice trivet. If you lay them on their sides, you not only get to see all the various winery names and designs, but you don't have to cut them.
andro0001 year ago
*versital
andro0001 year ago
Cork is such a beautiful and celestial material. Thank you all for sharing.
This is a wonderful pot holder, maybe we could ask Slamonella to come fishing with us and catch a herd of salmon, or a gander of trout, or even a flock of whales.

Then we can cook them all up in your pot and when it's all yummy and ready to eat, we can park the pot on the pot holder while we make pallets of toast, applicated with a stratification of toasted cheese, shooken all over with cracked black pepper.

Dolphin patties or fish brane soup!!!!!!
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Nice! And thanks for adding the video regarding the cutting of the cork with a sharp utility knife.
One could hang this or a perhaps larger one on the wall and use as a traditional cork board.
strooom (author)  tencentdress1 year ago
"One could hang this or a perhaps larger one on the wall and use as a traditional cork board"

Great idea ! You would need a lot of corks : eg for a 60 * 40 cm you would need ~527 corks,  but know that most restaurants have a surplus of corks they don't know what to do with.. So you could give them a box, write your phone-nmbr on it and then wait for a call when the box is full.
scooterdad1 year ago
this is a brilliant idea. I can imagine the acquiring of materials is as enjoyable as the manufacture of the pot stand. Have you tried auto weld ?
It can take quite high temperatures and I have seen some people using it to fix parts in alcohol stoves so will probably be quite good in the heat tolerance area, Worth a try I think
strooom (author)  scooterdad1 year ago
Well, in fact corks are good thermal insulators, so I never had any problem with the glue not withstanding the temperature. To me the idea was simple and straightforward. Still I am very glad that many people like it. Don't forget to vote : I'm in the reuse contest :-)
tbrugada1 year ago
nice
RainDog071 year ago
I made four cork boards this week so I thought I'd pass on some notes. Corks are not all the same diameter although most I have in my bin are the same - approx. 3/4 in. The only glue I've found to be satisfactory on synthetic corks is a two part epoxy, but a hot pot may melt them, so only use natural corks for this project. The easiest way I found to trim a cork to length is a disc sander with a dust collector attached - they make a LOT of dust. I'm going to try this idea, using the wine-stained ends to make a pattern. Thanks for the instructable!