Polishing Wheel: a Leather-Faced Wooden Disc with Glued Abrasive (Boy Mechanic, 1925)

A wheel for polishing metal: a hardwood disc faced with a band of leather belting, coated with glue and rolled in abrasive powder. Variable: the abrasive's grain. Source: The Boy Mechanic, Book 4 (1925), p. 423. Unknown: sizes, glue and abrasive. Picture: the article.

初学者

Unknown

说明

Cut the disc

Cut a hardwood disc of suitable thickness and diameter and drill a central hole to fit the shaft it will run on.

此步骤所需材料：

硬木板1 个

所需工具：

夹背锯

手摇曲柄钻与钻头

Face it with leather

Soak a piece of leather belting in water until soft and stretch it until some water is out. Cut it a little longer than the wheel's circumference and taper (scarf) the ends so they overlap smoothly. Glue it round the face of the wheel.

此步骤所需材料：

腰带皮条——植鞣1 个

动物胶1 个

所需工具：

水

皮革刀

涂胶刷

Coat with abrasive

Give the leather a thin coat of warm glue and cover it evenly with abrasive powder of the grain you want while the glue is wet. Hang the wheel up until the glue has dried.

此步骤所需材料：

动物胶1 个