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Graphite Block Sawn from Solid Natural Graphite
Solid natural graphite, like the Borrowdale graphite once sawn into pencil sticks, is soft enough to saw and file to shape. Saw a squared block from a sound lump and file its faces flat.
The picture: our diagram, a lump with saw lines and the block cut from it.
初学者
An hour
说明
1
1
Choose the lump
Choose the lump
Pick a solid, even lump with no cracks or bands of rock running through it, a little larger than the block you need.
此步骤所需材料：
天然石墨1 公斤所需工具：
直尺2
2
Saw it square
Saw it square
Wrap the lump in cloth and hold it lightly in the vise. Saw one face flat with slow, light strokes, then saw the others square to it.
所需工具：
台虎钳
干酪布
钢锯
固定角尺3
3
File the faces
File the faces
File each face flat and check the corners with the square. Keep the dust: it is powdered graphite.
所需工具：
金属锉固定角尺4
4
Block weight
Block weight
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