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Grindstone: Sandstone Wheel on a Cranked Axle with a Treadle

Cassell's Carpentry (public domain); maker mark removed by Youblob · Public domain

작성자

Woody

14. 10월 2026

Grindstone: Sandstone Wheel on a Cranked Axle with a Treadle

A grindstone is a sandstone wheel spun on its axle to sharpen metal tools, used wet. Medieval ones were turned by a crank; by about 1480 a treadle was added so one person could pedal and grind. Shape the stone, wedge it on an iron axle with a crank, and mount it over a water trough in a wooden frame with a treadle. The picture: a treadle grindstone on an iron stand, from Cassell's Carpentry.

고급

Several days

안내

Shape the stone

Scribe a circle on an even-grained sandstone slab, about 50 cm across and 7 cm thick (our size). Peck and chisel it round, then cut a square hole in the centre.

이 단계의 재료:

사암 판석1 개

필요한 도구:

디바이더(양각규)

망치돌

석재용 정 세트

석공용 나무망치

보안경

방진 마스크

Forge the axle and crank

Forge a square-sectioned axle to pass through the hole, round at both ends for the bearings, and bend a crank at one end with a hole for the treadle rod.

이 단계의 재료:

연철 봉2 개

숯4 as required

필요한 도구:

대장간 화덕

모루

가로 쐐기머리 망치

대장간 집게

Wedge and true the stone

Centre the stone on the axle and drive hardwood wedges round the square part from both sides until it runs without wobble. Turn it and dress the rim true against a fixed iron.

이 단계의 재료:

경목 오리목1 개

필요한 도구:

석공용 나무망치

석재용 정 세트

Frame, trough and treadle

Build an oak frame with notched bearings for the axle, a plank trough below the stone to hold water, and a treadle hinged at the back joined to the crank by a rod.

이 단계의 재료: