SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Sandstone Whetstone
Before bonded abrasives, edges were sharpened on natural stone, and fine sandstone was the commonest. A piece is shaped to a block and one face is ground dead flat by rubbing it on a flat slab with sand and water. Used wet, its quartz grains cut steel. Sandstone cuts fast but coarse: finish an edge on a finer stone.
Mwanzo
Half a day
Maagizo
1
1
Choose the stone
Choose the stone
Pick a piece of fine, even-grained sandstone without cracks or soft layers, a little bigger than the block you want.
Vifaa kwa hatua hii:
Jiwe la mchanga (la kusugua)2 kg2
2
Shape a block
Shape a block
Wearing glasses, trim it to a rough block about 200 by 60 by 30 mm with the chisels and hammer.
Zana zinazohitajika:
Patasi za kuchonga mawe
Nyundo ya kuchonga mawe
Miwani ya usalama3
3
Flatten the face
Flatten the face
Sprinkle sand and water on a large flat stone and rub the stone's face on it in figure-eights until the straightedge shows no light under it.
Vifaa kwa hatua hii:
Mchanga0.5 kg
Maji2 litaZana zinazohitajika:
Jiwe kubwa bapa
Rula ya kunyoosha4
4
Test it
Test it
Soak it in water and hone a dull knife on it: the edge should come up keen but coarse.
Vifaa kwa hatua hii:
Maji2 litaZana zinazohitajika:
BakuliVifaa
3- Kishikilia Nafasi
- 0.5 kgKishikilia Nafasi
- 4 litaKishikilia Nafasi
Zana Zinazohitajika
6- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.