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Leather flask

Leather flask
Show ye olde style, while saving the earth by stopping the use of disposable waterbottles. Carry, the flask...

The flask is quite the fashion piece these days, just wait, soon ye'll see ye olde Lady Gaga wearing it... And nothing else... >barf<


Anyway, it's quite cool, and gets a lot of comments wherever you take it. So, jump on the train and make one yourself. This flask holds 3 cups of water (*or, 663 ml, or 23.4 fl oz) or if you prefer it can hold 23.4 fl oz of whiskey...


P.S. A note I forgot to add earlier. At first, the water stored in it for long amounts of time may get a leatherish/beeswax flavor to it. It isn't too bad, and it diminishes with use. When I make one I like to fill with water, let it set for several hours, and empty then repeat. this repeated for a few days will diminish much of the flavor.  (I personally kind of like it, but some people don't).
 
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Step 1Tools and supplies

tools and supplies

Tools

  • Sharp knife
  • contact cement
  • marking tool (I use a fine tip sharpie)
  • two sewing needles
  • overstiching wheel (for marking sewing points)
  • edge beveler
  • drill or drill press with small bit (I use 3/32" but one size smaller might be better)
  • Optional - leather tooling tools (make it look cool!)
  • pattern
     

Supplies

  • Heavy Veg Tanned leather (I believe mine was 10-11 oz)
  • False sinew
  • beeswax
  • paracord (I use it for a shoulder strap)
  • a wine cork
  • lentils (or small beans, or something like that, you just need something to hold the shape for it)






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111 comments
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Jan 14, 2012. 3:26 AMcurious youth says:
hi great instructable ! ive been going through a few of yours now and you truly are a talented person. i was wondering if i made this a larger size (not exactly sure what size yet) would i also have to enlarge the hole ? or could i leave that at the same size ? also im just wondering how much damage this can take ? like how long would it last getting dropped/thrown to the ground ?
just a side note wouldnt embedding an o-ring into the stopper make it watertight ?
cheers
Dec 13, 2011. 12:12 PMBlueeyeddevil says:
downright amazing
Apr 24, 2011. 6:47 PMmephit says:
Just as a note, you don't actually have to soak the leather in beeswax to harden it. The word for hardened leather is cuirbouilli. This is medieval French for "boiled leather." As far as we can tell today, the traditional method was indeed to dip the piece in boiling water for a particular length of time, but this takes a great deal of practice to do properly without ruining the leather.

With modern ovens and accurate thermostats, it's far easier to bake the wet leather instead of trying to actually boil it. Instead of shaping it first and then soaking in beeswax, soak the tooled and sewn leather in water. Soak it until it stops bubbling and no longer floats. This may take an hour or more. When you take it out of the water it'll be very floppy. Be careful not to damage any tooling you've done! Pack it full of warm, dry sand until you can't fit any more in, then cork the bottle. place it in your oven at a temperature of about 150 - 170 Deg F. Carefully bake until dry. This may take some experimentation. Once cooled, dump the sand out and clean the inside and you have a cuirbouilli bottle. This can then be treated with a coating of beeswax for waterproofing (or brewers pitch, or liquid epoxy, or whatever you choose).

This technique permanently and rather radically alters the leather at a molecular level. It causes the tannins in it to polymerize, making the leather more like a plastic. It will not soften in hot weather or if left in a car. In fact, if you take it too far and harden too much, you can make the leather so hard it becomes brittle and will crack if struck. With some practice you can make anything from slightly harder but still a bit flexible, to so hard it's like a piece of wood.
Aug 1, 2011. 12:52 AMjdougherty2 says:
I have yet to try any of this, but I just recently read on other websites dedicated to leather that actually boiling it would cause irreparable harm, and suggest water no hotter than 180*F. (and they say it smells REALLY bad if you heat it at too high a temp.)
Like I said, though, I haven't actually tried it yet.
Aug 1, 2011. 1:16 PMmephit says:
With modern technology, it's become possible not only to see what changes happen to the leather on a molecular level, but when. Because of this, we know the tannins polymerize at about 160 deg F. Of course, before the days of modern scientific equipment and precise temperature control, it would have been much harder to know exactly when this change happened. Whatever the details of it, our ancestors used the technique they knew worked, even if it might not be ideal by modern standards. But in simple fact you can certainly make hardened leather with boiling water. I've tried it myself before.

To some degree, I think it comes down to your definition of irreparable harm. For some people, I'm sure making the leather no longer flexible at all is harm because they have no experience with truly hardened leather. Wax "hardened" leather is often still somewhat flexible. It's rigidity comes from the wax being hard, not the leather itself hardening. The tannin polymerization seems to require water in some way not fully understood yet as dry leather won't harden when baked. Probably for some others, they haven't practiced it enough and had little blobs of former leather that would shatter like cheap plastic. Or they didn't realize that water-hardening leather will cause it to shrink by as much as a third of it's original dimensions and so wound up with something tiny. Or they didn't use wet enough leather and it started to burn instead of hardening. All those things could be considered irreparable harm but don't necessarily invalidate the technique itself. They just prove it's not an easy art to master!

Another thought that occurs to me is I also don't know what tannage of leather they were using. I've never had a bad smell from leather in boiling water for a short time (though burning leather smells pretty bad), but I've only ever used standard vegetable tanned tooling leather. I can't afford real oak bark pit-tanned leather or anything like that. Perhaps the somewhat different tanning methods could produce unpleasant smells.That's just a guess on my part, though.

The technique is worth a try, if you wish to practice it some. You'll almost certainly ruin all your early attempts, though, so don't get discouraged! I know my first attempt at a gorget was small enough for a child and snapped in half with my bare hands. It took several tries to get a workable neck armour, but I wound up with something quite usable in the end. I wish I had any pictures of it to show you, but I stopped using it many years ago and lost it shortly after.
Jul 6, 2011. 1:09 AMRamcharanLeather says:
Broberg; you can find Veg-tanned leather pretty easily. Try www.tandyleatherfactory.com, www.deadcowleathersupply.com, www.tanglefoottraders.com, www.leathersupply.com, and sites like that.

I have business pricing with Tandy, and just bought about 6 square feet of veg-tanned for $7.99. Most of those sites you can buy by the square foot, sides, splits, etc.

Oldanvilyoungsmith, I would recommend specifying that you used vegetable tanned leather for this project, if someone mistakenly used chrome tanned or latigo it wouldn't work very well. For experienced leatherworkers, it became obvious when you stamped it that you either used veg-tanned or rawhide, but for someone just starting it would be nice to know.

Other than that, this is an AMAZING idea! I'll have to try that sometime soon, just have to get enough beeswax!
Jun 18, 2011. 9:07 AMbajablue says:
I see a lucrative Saddle-making career in your future! Love the impeccable detailing of this flask. EXCELLENT work!!!
Jun 19, 2011. 9:44 AMbajablue says:
I think you'll excel at whatever you set your mind to. Enjoy the journey!!!
Apr 29, 2011. 8:26 AMGreg C. says:
Hey, good to see you're on here as well as Bladesmith's forum. Great instructable, I'm going have to make one for a pre-1840 reenactment that I do.
Is this your first bottle? (not including the shriveled-up thing in the last photo)
I saw you posted it on DFogg forums, that was awhile ago.

Greg


May 12, 2011. 1:50 PMjamiec53 says:
Thanks for the great link! Loads of great stuff on there. Beautiful flask by the way :)
Apr 29, 2011. 3:45 PMGreg C. says:
Yep, I'm on here. Don't submit may instructables, but I sure take advantage of the wealth of info on this site :)
May 12, 2011. 1:11 PMjamiec53 says:
Wow. Just awesome!
Apr 24, 2011. 11:14 AMjust1jane says:
Your design and execution are beautiful. Thank you for uploading this.
May 9, 2011. 1:36 PMacelsziv says:
I have no words you are very smart. This flask is beautiful
Apr 26, 2011. 2:35 PMpiraticalstyle says:
This is by far the most helpful and most timely instructable I have come across. I was looking at doing one of these for myself and was trying to figure out all the steps needed before I started. You've made it all simple and understandable. Thanks so much!!!
Question though. I don't have beeswax on hand. How comparable is paraffin? I'm going to order up some beeswax and pitch to mix up a nice coating but I don't want to wait to get started.
Apr 27, 2011. 8:47 AMpiraticalstyle says:
Thanks for your honesty. I think I'll give it a try. My bottel is drying now. Don't worry, I won't hold you responsible for any catastrophic failures on my part. :D
Apr 24, 2011. 1:58 PMKittyF says:
did you put wax into the inside as well?
and second question, why not just let the leather swell with water and seal the seams? wouldn't that keep the water cool as you carried it by evaporation?
Apr 25, 2011. 8:22 AMjongscx says:
soaking leather with water is a good way to have it start delaminating and will eventually destroy it. That's why you put wax to seal out the water.
Apr 26, 2011. 3:45 PMKittyF says:
Oh, right, I wasn't thinking about that. thanks.
Apr 25, 2011. 5:34 AMKittyF says:
yes, that's a good method. my dad has a military canteen from the fifties or sixties which has one and we used to go all day hiking and digging for rocks and had cool water to drink cause he would wet down the canteen cover every now and then. best water there was on a hot day.
Apr 26, 2011. 12:51 PMvbanaszak says:
I realy enjoyed your instructable! I must say you have learned some great life skills for such a young man. Kudos to you. Keep up the good work!
Apr 25, 2011. 2:43 PMNaturalCrafter says:
I love the finished look of this project. Very nice
Apr 25, 2011. 8:16 PMSinSpawn says:
Question, in the waxing step if you can completely immerse the flask in wax to soak it then is it necessary to bake it after that?
Apr 26, 2011. 12:55 AMEirinn says:
Well done!
I wish i had use for one of these - i really do, but i invested in a non BPA (so forth and so forth) drinking flask a few years ago. Maybe when it's not usable anymore i'll make one of these.

How easy is it to clean? It must get a bit yucky inside after awhile.

In any case this is a gem for all those live roleplayers out in the woods - they gotta love this. I know i would :)

Apr 24, 2011. 2:09 PMKittyF says:
had you thought of a length of leather, rolled and glued or just tied with a string as a stopper? I'd think that'd be VERY authentic, cool looking and possibly water proof (if it weren't waxed as well), since the leather would swell when wet.

Just a thought.
Apr 25, 2011. 10:44 AMmayej says:
First off FRED, I wasn't talking to you.
I first thought you misunderstood me, but now I just think you have a chip on your shoulder. I was paying the creator of this instructable a compliment. I was saying that I felt stupid for using my awl, hand and arm all these years to muscle it through when I could have used the leveraging benefit of a drill press with a needle/nail in it.
I've always wet/soaked the leather before tooling it, but when you're working with heavy ounce stuff, wet or not, it's still tough.
Remember there's a "be nice" policy on here, and I've always adhered to it, I'm sure others on here would appreciate it if you did the same. You can 'educate' without being 'condescending'.
Hugs+Kisses,
Mr. Intelligent
Apr 24, 2011. 10:37 AMlazemaple says:
what about toxins in the leather? In days gone by the leather would have been tanned with teas or acorns... much as the inuit do with their leather. Rather than the toxic substances used today.
Beautiful work by the way; very impressive!
Apr 25, 2011. 10:17 AMlazemaple says:
sorry to have stirred up this toxic tempest - yes tannins are toxic; dose makes the poison. Grapes, tea and many other foods contain tannins.

After some consideration I think the beeswax soak would go a long way to diminishing any toxicity as the leather itself wouldn't be in direct contact with the water the wax would.

Given the options in plastic and aluminum out there - and stainless can be a problem due to recycled metal perhaps the leather flask is the better choice.
Apr 24, 2011. 10:22 PMjtpoutdoor says:
tannin is toxic too! it's what the tree produces to cget rid of its predators;-), natural is not alwatys less toxic than manmade.
it is indeed beautiful though.
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Author:oldanvilyoungsmith(eagle eye forge)
Hi, I'm stephen, I'm currently finishing highschool, taking college welding, and trying to balance in my hobbies of knifemaking and blacksmithing. Visit my blog - eagleeyeforge.blogspot.com - and chec...
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