アート
美容とウェルネス
工芸
文化と歴史
エンターテインメント
環境
食品と飲料
グリーンフューチャー
リバースエンジニアリング
科学
スポーツ
テクノロジー
ウェアラブル
Making a Fire-Hardened Digging Stick — The First Farming Tool
Woody

作成者

Woody

19. 4月 2026NO
0
0
0
0
0

Making a Fire-Hardened Digging Stick — The First Farming Tool

The digging stick is humanity's oldest farming tool, predating the plough by thousands of years. A straight hardwood branch, carved to a chisel point and hardened in fire, becomes a surprisingly effective implement for breaking soil, planting seeds, and prying roots. Fire-hardening drives moisture from the wood cells and compresses the grain, creating a tip harder and more durable than raw wood. This blueprint covers selection of the right wood, carving the tip geometry, the two-pass fire-hardening technique, and sealing the finished tool with animal fat.

初心者
60-90 minutes

手順

1

Select Hardwood

Select a straight hardwood sapling — oak, ash, hazel, or birch — 4-5 cm in diameter and 120-150 cm long

このステップの材料:

Hardwood SaplingHardwood Sapling1
2

Strip Bark

Strip all bark from the shaft using the back edge of a knife or a sharp stone flake

必要な工具:

KnifeKnife
3

Trim Branches

Trim any side branches flush with the main shaft so the surface is smooth

必要な工具:

KnifeKnife
4

Mark Working End

Mark a line 30 cm from one end — everything below this line is the working tip zone

5

Carve Chisel Point

Carve the working end to a symmetrical chisel-point, removing wood evenly from both sides

必要な工具:

KnifeKnife
6

Shape Wedge Edge

Shave the tip to a flat wedge shape, 2-3 cm wide at the cutting edge

Step 6 - Image 1

必要な工具:

KnifeKnife
7

Smooth Surfaces

Smooth all carved surfaces with a sandstone block, working along the grain

必要な工具:

Sandstone (Abrasive)Sandstone (Abrasive)
8

Build Fire

Build a small fire and allow it to burn down to a bed of glowing coals with no open flame

このステップの材料:

FirewoodFirewood1
9

First Charring Pass

Hold the carved tip 10 cm above the coals, rotating the shaft slowly and steadily

10

Monitor Colour

Continue rotating until the surface chars evenly to a deep chestnut brown — not black ash

Step 10 - Image 1
11

Scrape First Char

Remove from heat and scrape off the thin charred layer with the edge of a hammerstone

必要な工具:

HammerstoneHammerstone
12

Second Hardening Pass

Return the tip to the coals for a second charring pass, rotating as before

13

Scrape Second Char

Scrape off the second char layer — the wood beneath is now noticeably harder, dense, and glassy

必要な工具:

HammerstoneHammerstone
14

Test Hardness

Test the hardened tip by pressing it firmly into packed earth — it should resist deformation

15

Carve Grip Notch

Carve a shallow grip notch 20 cm from the upper end for a secure handhold

必要な工具:

KnifeKnife
16

Final Smoothing

Smooth the full shaft with fine sandstone to remove any rough fibres or splinters

必要な工具:

Sandstone (Abrasive)Sandstone (Abrasive)
17

Seal with Fat

Rub a generous coat of rendered animal fat (tallow) into the entire wood surface to seal the grain

このステップの材料:

Animal Fat (Tallow)Animal Fat (Tallow)1 大さじ
18

Test in Soil

Test the finished digging stick in loose soil — push the tip in at 45° and lever upward to break the earth

Step 18 - Image 1

材料

3

必要な工具

3

CC0 パブリックドメイン

このブループリントはCC0で公開されています。許可を求めずに、自由にコピー、修正、配布、あらゆる目的で使用できます。

メイカーを応援するには、ブループリント経由で製品を購入してください。メイカーには メイカーコミッション がベンダーにより設定されています。または、このブループリントの新しいイテレーションを作成し、自分のブループリントにコネクションとして含めて収益を共有できます。

ディスカッション

(0)

ログイン してディスカッションに参加

コメントを読み込み中...