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            How to work with leather
 
 
              
      You can get leather to hold a shape by wetting it, fastening it to a
      "form" that's the shape you want it to take (usually carved from wood) and
      letting it dry. That's the basic technique, but of course there are all sorts of nuances
      and opinions on how to wet it, how to dry it, how to fasten it, etc. Forming usually seems
      to be combined with other techniques as part of making a product. 
      There's also "cour boulli" (I'm sure I spelled that wrong), which is
      shaping and hardening leather for body armour, usually only practiced by medieval
      recreationists . Again, there are different techniques; some people advocate soaking,
      forming and then baking the leather on the form in an oven, others recommend applying
      melted beeswax, and others recommend specific mixtures of beeswax and other substances. 
      In general, the kind of leather - the animal, the tanning process, and the
      general condition of the leather itself - affects all leatherworking techniques in how
      they're applied and how effective they'll be. This goes doubly for forming, tooling and
      stamping, which work on the very fabric (so to speak) of the leather. 
      Tooling and Stamping 
      Just as you can get leather to hold large shapes by forming, you can use
      tooling and stamping to add finer, more detailed shapes to leather. Tooling and stamping
      are definitely outside my meagre area of expertise, but I'll try to give you the gist of
      it. Those more experienced can feel free to kibbitz. 
      Stamping is straightforward enough in application; you have a stamp, a piece of
      metal with a design or image embossed on one side, and you put it against the smooth
      (grain) side of a piece of leather and apply strong, abrupt pressure, usually by hitting
      it. Usually stamps are mounted on thin metal handles about three inches long and as thick
      as a pen or pencil, or they're designed to be fit onto such a handle. Typically you hit
      them with a special hammer, with either a rawhide or polyurethane head. Typically you rest
      the leather on a special, hard flat surface. A lot of people like slabs of granite for
      this purpose. 
      How exactly does the stamped image stay in/on the leather? The metal edges of
      the embossed design press down the smooth surface of the leather and compress and distort
      the flesh underneath to a degree. The whole process is almost, but not exactly, like
      tooling, just arguably a lot easier. On the other hand, if you're using a tiny 3/16"
      by 3/16" stamp head to add texture to a space several inches across, it's going to be
      rather tedious and require a lot of precision in placing and hitting the stamp. 
      Tooling is done by cutting a design into the smooth side of a piece of leather
      with a special, very precise knife called a "swivel knife", and then following
      up by using a stamp-like tool to compress or push up the leather. Again, this is usually
      done on a hard surface, often marble. The cuts are very shallow and only penetrate the
      "grain" of the leather, the thin, smooth surface layer, without going much into
      the flesh of the leather. 
      From what I've read and heard, tooling mostly is done on damp leather; leather
      that is carefully soaked all the way through, but not wet enough to yield water when you
      squeeze it. Most books I've skimmed say that the best way to get the leather ready is to
      use a damp cloth or sponge and press the water into the flesh side of the leather until it
      starts to show on the grain side. Some people on the leathercrafter's mailing list have
      said they find leather easier to work on when they wet it and then let it sit for a week
      or more. In any event, you can see that the line between tooling and forming is rather
      blurry, although the bulk of most people's activities seem to be focused on tooling. 
      I'm not into tooling because I like to build useful things with leather, not
      just cigarette holders and belts that are blanketed with a dense mosaic of western
      carvings and decorations. The first time I said that I put a little smiley face after it,
      but some people still didn't get the joke. I admire tooling for the grace and beauty it
      can add to a project, but for me it's something that _adds_ to the project, that
      supplements it. I'd like to do some, someday (I once saw some tooled Celtic knotwork with
      zoomorphic figures that'd knock your eyes out) but so far I haven't ventured into it. If
      you're interested in tooling, you're in luck, because it seems most of the info out there
      on leather crafting is about tooling. 
      Greg Gaub comments on tooling: "I like to think of tooling as the best way
      to include a design on a project that will never go away. We all know that paint can come
      off and dyes/stains can fade, but a tooled impression will always be there, even if it
      gets soaking wet or beat to hell." 
      Construction 
      I'm using the blanket term "construction" to cover the basic,
      conventional ways to build things out of leather. This includes cutting, skiving,
      strapping, sewing, lacing, braiding, gluing, riveting, snapsetting and anything else I may
      have forgotten to add. Most of my meagre experience with leather has been limited to this
      realm. 
      You start with a piece of leather, either a scrap, a half-hide or a whole-hide.
      You want to arrive at a finished thing, say a pouch, for example. To get there, you have
      to cut the leather into pieces of the right shape, length and width, perhaps skive the
      edges down to the appropriate thinness (essentially shaving some amount off the flesh side
      of the leather) in places, and strap out a length of leather to hang the pouch on. 
      There are several specialised and not-so-specialised tools for doing all of
      these. These days most people use one tool for each kind of cutting, maybe a precise,
      sharp knife to cut out the shapes, a "skife" or skiving knife to do the skiving
      or a lap-skiving machine to skive strap-ends, and a strap-cutter to cut long,
      evenly-spaced, straight straps. According to Al Stolhman, author of a number of excellent
      booklets on working leather and widely-recognised authority, many of these tasks and
      others (maybe even most of them) were done with a single tool in the old days, a head
      knife. 
      I've seen, handled and even worked a little with a head knife. A friend of mine
      got into leatherworking, and decided right from the start (after reading my copy of that
      Al Stohlman book I mentioned last paragraph) to learn how to do it all with ahead knife.
      Essentially a head knife is a wooden handle with a semi-circle blade perpendicular to the
      handle. Take a capital T, draw a half-circle across the top. The base of the T is the
      handle, the half-circle is the sharp edge. The top of the semi-circle is the part you use
      for skiving. The "wings", or corners of the semi-circle/T are used for intricate
      cuts. There are different designs of head knives, some with more swept-back wings, for
      example. 
      If you're not ambitious enough to tackle learning a head knife, there are a
      wide variety of specialised tools. The best way to learn about them is to buy Al
      Stohlman's tool book, which covers an astonishing variety of tools, including how to use
      them, care for them, and in some cases how to build them. See the suggested list of tools
      below for my thoughts on what you should get to start. 
      Okay, so now you have all of the pieces you'll need, but how will you fasten
      them together? There are a variety of ways to do it, including sewing, lacing, gluing, and
      riveting. 
      Al Stolhman has an excellent book on the basics of hand-sewing leather. Unless
      you're working with exceptionally thin, soft leather (often called "garment
      leather"), sewing leather is not like sewing cloth. Sewing leather boils down to
      making matching holes in two or more pieces of leather and stringing some kind of thread
      (or thong or leather lacing) through the holes. 
      The holes are usually made with an awl - sort of like a sharp, smooth,
      round-pointed nail on a handle - or thonging chisels (which are theoretically for use with
      thong or lacing, but that doesn't stop people from using them to sew). A thonging chisel
      is exactly that - a small chisel with a head a sixteenth or eighth of an inch wide, that
      you use to punch a slit in the leather. 
      You can also use hole-punches to punch round holes to string thonging or lacing
      through. Hole punches are either "drive punches", which are tubular blades in
      varying widths on the ends of metal handles like the thonging chisels, or "rotary
      punches", which look like the kind of hole-punch you used to use in school to make
      holes in paper. Most rotary punches have a number of different-sized punches on a rotating
      head, so you can spin it around to the size you need at any moment. A rotary punch can be
      incredibly handy, especially for field repairs, but in general I like drive punches
      better. 
      The thread is usually flax, nylon or cotton thread (very heavy compared to
      normal sewing thread), or sinew, or more likely artificial sinew (natural sinew comes in
      fairly short lengths and is difficult to obtain). The thread or sinew is usually rubbed
      with beeswax to make it grip the holes better. 
      Lacing and thonging are long, thin strips of leather. You can cut them yourself
      with a sharp blade (or with yet another specialised tool, a lace-cutter - but the ones
      I've played with are only good for light-weight lacing). You can get a surprisingly long
      length of lacing or thonging out of a a small piece of leather by cutting it out in a
      spiral pattern. Once you've cut it and stretched it out straight, the bend is
      imperceptible. 
      For everything but stiff thonging, you'll need a wide variety of needles and
      implements for pulling the thread, sinew, lacing or thonging through the hole. The needles
      I mostly use are nice, large needles with huge eyes I can easily thread a large chunk of
      sinew through, and nice, dull points that won't catch on the leather and make new holes in
      the wrong places. I've seen "special" leathercraft needles sold for ridiculous
      prices, so I'd definitely recommend shopping around before buying in any great quantity.
      Check out a sewing shop and similar places as well as speciality stores like Tandy. Get
      lots of spares, you'll always be losing them, breaking them, or not want to unthread them
      from one project to use elsewhere. 
      You can also glue leather with a strong rubber cement or leather glue. Barge
      glue seems to be the most widely recommended, and it's what I've always used. I don't
      recommend gluing as the primary means of construction, but it's useful for getting a
      tight, waterproof seam, or for making sure that small pieces and corners and the like stay
      where they're supposed to. I also like to carefully glue intricate projects together
      before sewing them, sometimes, so I don't have to worry about pieces slipping. This isn't
      always practical, though. It depends on the project. 
      Riveting is the use of metal rivets, like the kind you find on Levi's jeans
      (only in much wider variety, of course) to hold two or more pieces of leather together.
      Riveting is done with a special kit - a small metal anvil and a cut to hold the one half
      of the rivet in, and a special tool to press the other half of the rivet into place. This
      is again, one of those picture-is-worth-a-thousand-words situations. I don't like to rely
      solely on riveting - in fact I tend to be minimalist with riveting - but it's quite useful
      in some situations. There are also a variety of other metal snaps and buckles that can be
      useful for all sorts of things. In general this sort of stuff is called
      "findings". You can find them at the hobby stores, but you may also be able to
      find them at actual "findings" suppliers. Check out the business-to-business
      directory or yellow pages. 
      Honourable Mention 
      Lest I gave you the wrong impression above, it's possible to build useful
      things solely or mostly by cutting the leather. Unfortunately, this is one of those
      "a picture is worth a thousand words" things, and I can't easily put a picture
      in here. 
      You can also do a lot with braiding, for example the classic "mystery
      braid". Take a strip of leather, cut two slits down the length of it, starting a
      half-inch from the first end and stopping a half-inch from the other end. You end up with
      three strands of leather in the middle, connected on either end. It's possible to create a
      seemingly impossible braid of the three strands in the middle. Again, a picture would be
      necessary to explain this. More normal braids can also be quite useful for building straps
      and fasteners for projects. 
      Finishing Steps 
      In addition to basic construction, most projects should include a variety of
      finishing steps, like bevelling edges, slicking edges, You can get away without a lot of
      this, simply because so few people do go the whole way. I'd suggest you don't worry about
      it for your first few projects, at least. This is the icing on the cake. Worry about
      baking a good cake first. But once your comfortable with constructing things, start on the
      polish. 
      Staining and Painting 
      Leather comes from the tannery either "natural" or dyed a specific
      colour. I generally like to have leather dyed the colour I want it to be, since I feel
      that they do a better job of doing it than I can with my meagre resources. However,
      sometimes I can't get what I need, or sometimes it's just not available - vegetable-tanned
      tooling leather, for example, always comes in a light tan colour. That's when I get the
      stains out. 
      I only have two or three stains in my tool chest, which goes to show you how
      much staining I do. But stains can be quite useful for adding highlights and interesting
      colours to a project. One of my earliest projects was a holster (of sorts) that started
      with two different-coloured leathers. By using multiple applications of stain, I managed
      to get it all to a nice, red-brown wood-tone that worked quite well, matching the musical
      instrument that it was designed to carry. 
      You can also paint leather. In clothing this is called appliqué, I believe,
      and it has a long and, , colourful history. I don't know beans about painting leather.
      I've seen it done once, and I've seen several finished pieces, so what I do know is that
      it can be a powerful technique to achieve an effect. There's a lady who shows up at the
      Pennsic Wars (an SCA event held in western Pennsylvania every august) with masks that are
      formed and tooled and painted to look like various animals. They are impressive! I suspect
      that choice of paints and leather (how it was tanned, surface texture, suppleness) could
      be crucial in getting good colours, and in getting the paints to stay on well and last.   
      Things to Make 
      Belts, Pouches, Boxes, Sheathes, etc. 
      This is where most of what I do fits. Basic belts (which are fairly easy,
      although doing a nice, quality piece requires several finishing steps that most people
      leave off, like bevelling, edging, forming the belt around the buckle, etc), pouches,
      knife sheathes, and so forth. To get started in this, I'd suggest you pick up a copy of Al
      Stolhman's booklet on Hand sewing Leather. A Tandy Leather hobby shop should have a copy
      of it, or be able to order it for you. 
      Mr. Stolhman also has many other books, most of which are quite useful (the
      tooling patterns don't do me much good, but then again I'm not into tooling). I
      particularly recommend his book on leather crafting tools, which shows you the basic
      techniques in using the tools, and how to care for them properly. Just reading this gave
      me a much better understanding of the tools that are available and of how to properly use
      some of the tools I was mis-using. 
      Boots & Shoes 
      I'm interested in shoe and bootmaking, specifically for medieval recreation (in
      the SCA) and I've been collecting information (some good, some not so good) about it, but
      I have yet to get much practical experience with it. Cold feet, maybe :-) You can
      generally find some basic introductory material and kits on moccasins and the like at
      Tandy leather, but I personally haven't been too impressed with the quality of the
      resulting pieces. The whole point of making footwear yourself is to get the best fit you
      possibly can; most of these kits only get close, because like commercial, mass-produce
      shoes, the leather is cut to standardised sizes, and your feet generally don't come in
      those standardised sizes. 
      Garments 
      I don't do a lot of garment making with leather, because it's much more like
      sewing cloth than like the rest of leather working, and I've never found sewing cloth too
      easy. The leathers you use are generally a heck of a lot more supple and lighter weight
      than what you use for other activities, and aside from the peculiarities of the material,
      it's just like making clothing. Hence, if you're interested in this, you'd be better off
      learning first about sewing clothing, then learn about how to bring leather into your
      repertoire. 
      Everything Else 
      Of course, I've only touched on some of the things leather can be used for.
      There's an immense field of saddle-making and harness-making, not to mention
      whip-braiding, and that's just the first three things that popped into my head. There are
      an astounding variety of possibilities - and indeed of examples throughout history - for
      making things with leather. 
      My brother and I once had a conversation about this; he's put off by what he
      feels are contrived uses of leather, for example making chess pieces out of leather. What
      he failed to realise (until I showed him a picture of a Moroccan tooled leather chess
      board and pieces that date from the 15th or 16th century) is that until plastic was
      invented, leather was ubiquitous, used for most everything, just as plastic is used for
      most everything today. 
      Tools 
      For construction, I'd suggest you start with at least the following: 
      Knife - a sharp knife with a small blade. I generally use a utility knife or
      "box knife" (called so because they're usually used in shipping and such to open
      cardboard boxes). Anything that fits that general profile should do: mostly handle and a
      half-inch to an inch of blade, so the cutting tip is near your grip and easily controlled
      for precise cuts, yet allows you apply strength when necessary for heavier leathers. Some
      people use Exacto knives, but I find them too light for most heavier leathers. 
      Cutting Board - these come in plastic or hard black rubber. . I've never been
      too happy with what they charge for a square foot of the stuff, so I encourage people to
      look for alternative sources. I suggest you get a cheap piece of board to back the rubber
      with, tough, as it *is* possible to go through leather, rubber and into the table you're
      working on, by accident. 
      Hammer - some people swear by rawhide mallets,  others say Polyurethane is
      just as good and lasts longer. I used a $16 polyurethane hammer for two years until a
      friend borrowed it and moved to Texas. Now I use a hard rubber mallet. Someday I'll pick
      up a rawhide mallet just to try it out. You want something that's heavy enough to hit with
      a little weight, but not so heavy you have trouble controlling it for delicate work.  
      An awl to make holes in things. There are different shapes of awl heads, get at
      least a round one to start with, or get one of the ones with interchangeable heads. A fid,
      which looks like a dull awl, is immensely useful for widening holes without cutting any
      further into the leather and for pushing things through holes when they get stuck. Some
      thonging chisels and maybe a rotary punch or a small set of drive punches. 
      A spool of artificial sinew, a spool of thread. Lace-cutter (so you can cut
      some lace to work with, quickly and easily). A tube of barge glue. Large, dull needles and
      other speciality needles. A chunk of beeswax.  Anywhere that has candle-making
      supplies might have beeswax. 
      A straight-edge, preferably metal, can be useful when making long, straight
      cuts. A strap-cutter can be invaluable when you're doing a lot of belts or straps.  Now the only thing left to tell you is ...get on with it.   |