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

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Woody

19. 4월 2026NO
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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.

초급
60-90 minutes

안내

1

Select Hardwood

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

이 단계의 재료:

Hardwood SaplingHardwood Sapling1
2

Strip Bark

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

필요한 도구:

KnifeKnife
3

Trim Branches

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

필요한 도구:

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

필요한 도구:

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

필요한 도구:

KnifeKnife
7

Smooth Surfaces

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

필요한 도구:

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

이 단계의 재료:

FirewoodFirewood1 묶음
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

필요한 도구:

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

필요한 도구:

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

필요한 도구:

KnifeKnife
16

Final Smoothing

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

필요한 도구:

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

이 단계의 재료:

Animal Fat (Tallow)Animal Fat (Tallow)1 큰술
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

재료

3

필요 도구

3

CC0 퍼블릭 도메인

이 블루프린트는 CC0로 공개되었습니다. 어떤 목적으로든 자유롭게 복사, 수정, 배포 및 사용할 수 있습니다.

제품 구매를 통해 메이커를 지원하세요. 판매자가 설정한 메이커 커미션 을 받거나, 이 블루프린트의 새로운 반복을 만들어 연결로 포함시킬 수 있습니다.

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