Sovereignty Module: Craft the Hide
Complete Leatherworking: From Raw Hide to Finished Goods
Leather provides armor, footwear, containers, harness, bookbinding, and countless tools. This campaign covers skinning, tanning methods, cutting, stitching, tooling, and project construction.
Chapter 1: Hide Preparation
| Step | Purpose | Method | Time | Temperature | Critical Factor |
|---|---|---|---|---|---|
| Skinning | Remove hide from carcass | Careful knife work, pull | 30-60 min | Immediate (fresh) | Avoid cuts/holes |
| Fleshing | Remove fat/meat from hide | Fleshing beam + knife | 1-2 hours | Same day | Remove ALL flesh |
| Salting | Preserve until ready to tan | Cover with salt (1 lb/lb hide) | 2-7 days | Cool, dry | Must penetrate fully |
| Soaking | Rehydrate salted hide | Clean water, change daily | 1-3 days | Cool (50-60°F) | Until supple again |
| Liming/dehairing | Remove hair and epidermis | Lime + water soak OR ash lye | 3-10 days | Cool | Check daily for hair slip |
| Deliming | Remove lime from hide | Weak acid rinse (vinegar) | 2-4 hours | Room temp | Must neutralize fully |
| Bating | Soften hide fibers | Animal dung or enzyme soak | 1-4 hours | Warm (80-100°F) | Don't over-bate |
Dehairing methods: 1) Lime method: soak in lime water (1 lb hydrated lime per 5 gal water) for 3-10 days, scrape hair off. 2) Ash lye method: hardwood ash water (strong alkali) — same effect as lime. 3) Sweating method: hang hide in warm humid place until hair loosens (3-7 days) — smelly but effective. 4) Bark liquor: some bark tannins loosen hair during tanning (combined process).
Chapter 2: Tanning Methods
| Method | Chemicals | Time | Result | Difficulty | Best For |
|---|---|---|---|---|---|
| Vegetable (bark) tan | Oak/hemlock/mimosa bark | 2-12 months | Firm, brown, toolable | Moderate | Belts, holsters, saddles |
| Brain tan | Animal brains | 2-5 days | Soft, white, washable | High (labor) | Clothing, moccasins |
| Smoke tan | Wood smoke (after brain) | 4-8 hours | Water-resistant, golden | Low (after brain) | Clothing, bags |
| Alum tan (tawing) | Alum + salt + egg yolk | 3-7 days | White, stiff, reversible | Low | Light leather, bookbinding |
| Chrome tan | Chromium salts | 1-2 days | Soft, blue-green, stretchy | Moderate | Modern leather goods |
| Oil tan (chamois) | Fish oil or neatsfoot oil | 3-7 days | Very soft, absorbent | Moderate | Cleaning cloths, soft goods |
Bark tanning (most durable): 1) Grind or chop bark (oak, hemlock, chestnut, mimosa). 2) Make tannin liquor: soak bark in water (stronger over time). 3) Start with weak liquor (old, used solution). 4) Soak prepared hide in progressively stronger solutions. 5) Move to stronger liquor every 1-2 weeks. 6) Final strong liquor for 1-3 months. 7) Total time: 2-12 months depending on thickness. 8) Result: firm, water-resistant, brown leather that lasts decades.
Brain tanning (softest leather): 1) Every animal has enough brains to tan its own hide (traditional saying). 2) Cook brains in water to make paste/emulsion. 3) Work brain mixture thoroughly into damp hide (both sides). 4) Let soak overnight. 5) Wring out and stretch repeatedly as it dries. 6) Must work continuously while drying (if it dries unstretched, it stiffens). 7) Smoke afterward for water resistance and preservation. 8) Result: incredibly soft, washable buckskin.
Chapter 3: Leather Types and Uses
| Type | Tanning | Thickness | Properties | Primary Uses |
|---|---|---|---|---|
| Sole leather | Heavy bark tan | 4-6 mm | Very firm, water-resistant | Boot/shoe soles, armor |
| Harness leather | Bark tan | 3-5 mm | Firm, strong, oilable | Belts, straps, harness |
| Tooling leather | Bark tan | 2-4 mm | Firm, accepts carving | Holsters, cases, art |
| Garment leather | Brain/chrome | 0.5-1.5 mm | Soft, flexible, draping | Clothing, gloves |
| Rawhide | None (dried only) | 2-5 mm | Extremely hard, rigid | Lacing, drums, shields |
| Parchment | Lime-stretched, dried | 0.2-0.5 mm | Smooth, writable | Documents, bookbinding |
| Suede | Any (flesh side out) | 0.5-2 mm | Soft, napped surface | Clothing, linings |
Chapter 4: Tools and Techniques
| Tool | Purpose | Substitute | Difficulty to Make |
|---|---|---|---|
| Swivel knife | Cutting decorative lines | Sharp pointed knife | Moderate |
| Beveler stamp | 3D effect on carved lines | Bent nail, filed smooth | Low |
| Stitching groover | Channel for thread to sit in | V-gouge or nail | Low |
| Pricking iron | Evenly spaced stitch holes | Fork, awl + ruler | Low |
| Awl | Piercing holes for stitching | Large needle, nail | Very low |
| Edge beveler | Round/smooth cut edges | Sandpaper + burnisher | Low |
| Burnisher | Polish edges smooth | Smooth bone, glass, hardwood | Very low |
| Rivet setter | Set rivets and snaps | Hammer + flat surface | Low |
| Stitching pony | Hold work while stitching | Clamp or knee-hold | Low |
Saddle stitch (strongest hand stitch): 1) Mark stitch line with groover. 2) Punch holes with pricking iron or awl (evenly spaced). 3) Thread two needles on one length of thread (one each end). 4) Pass first needle through first hole. 5) Pass second needle through same hole from opposite side. 6) Pull both tight. 7) Repeat for each hole — thread crosses inside leather. 8) Result: if one stitch breaks, others hold (unlike machine stitch which unravels).
Chapter 5: Essential Projects
| Project | Leather Type | Skill Level | Time | Tools Needed | Priority |
|---|---|---|---|---|---|
| Belt | Harness/tooling (8-10 oz) | Beginner | 2-4 hours | Knife, punch, buckle | High |
| Knife sheath | Tooling (6-8 oz) | Beginner-intermediate | 3-5 hours | Knife, awl, needle, thread | High |
| Water bottle | Heavy bark tan (8-12 oz) | Intermediate | 6-10 hours | Knife, awl, needle, pitch | High |
| Moccasins | Brain tan or soft (3-5 oz) | Intermediate | 4-8 hours | Knife, awl, needle, thread | Critical |
| Saddlebag | Harness (6-8 oz) | Intermediate-advanced | 8-16 hours | Full tool set | Moderate |
| Book cover | Tooling or alum (3-4 oz) | Beginner | 2-4 hours | Knife, glue, bone folder | Moderate |
| Armor (vambrace) | Sole leather (10-14 oz) | Advanced | 8-16 hours | Knife, water, molds, rivets | Moderate |
Reference Card
- Flesh immediately (fat left on hide causes rot within hours in warm weather). 2. Salt preserves indefinitely (properly salted hide keeps months until you're ready to tan). 3. Brain tan = softest (but must work continuously while drying — labor intensive). 4. Bark tan = most durable (months of patience but produces leather that lasts generations). 5. Rawhide is strongest (untanned dried hide is harder than wood — use for lacing and shields). 6. Saddle stitch never unravels (two-needle technique means each stitch is independent). 7. Wet-mold for shape (soak bark-tanned leather, form over mold, dries rigid in that shape). 8. Oil regularly (leather is skin — it dries and cracks without periodic oiling with neatsfoot or tallow).