UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA

Forged Geologist's Pick
A geologist's pick of about 2½ pounds, with a square striking head on one side of the eye and a long curved point on the other, forged from 1¼ × 1¾-inch tool steel. After the eye is punched, the bar is cut part way through beside it with a hot chisel and the waste cut away, then each end is drawn out, under a power hammer in the original. The point is hardened like a cold chisel and tempered to dark blue; the head is then hardened about 2 inches back and tempered to brown or dark straw, with damp coal round the point so it is not softened again.
Hejuru
4–6 hours
Amabwiriza
1
1
Mark and punch
Mark and punch
Mark the stock with a centre punch and chisel, and punch the hole for the eye.
Ibikoresho by'iyi ntambwe:
Inkoni iringaniye y'icyuma cy'ibikoresho1 igiceIbikoresho bikenewe:
Igicukuzi cyo Gushyira Ikimenyetso
Uruganda rw'umucuzi
Ingoyi
Igitobora gishyushye
Amafashi y'umucuzi2
2
Cut beside the eye
Cut beside the eye
With a drift in the eye, flatten the sides. Cut part way through 3/16 inch from the edge of the hole on both sides, round the bottom of the cuts with a thin fuller, and cut out the waste.
Ibikoresho bikenewe:
Igikoresho cy'umucuzi cyagura umwobo
Icyuma gikata gishyushye
Fuller (icyuma cyo gucukura imirongo)3
3
Draw out the ends
Draw out the ends
Draw out one end, cut the pick from the bar, then draw out the other end to the point's form.
Ibikoresho bikenewe:
Inyundo izamurwa ikagwa
Inyundo nini4
4
Finish the head and point
Finish the head and point
With the drift in the eye, smooth around it with a set hammer. Finish the head with set hammer and flatter and cut it square from four sides; finish the point with a flatter and cut it to length. Grind face and point.
Ibikoresho bikenewe:
Inyundo yo gushyira intambwe
Igikoresho cy'umucuzi cyo kuringaniza
Icyuma gikata gishyushye
Imashini ihyeza yo ku meza5
5
Harden and temper
Harden and temper
Harden the point like a cold chisel and temper it to dark blue. Then heat about 2 inches of the head, keeping damp coal around the point, harden it the same way and temper it to brown or dark straw.
Ibikoresho bikenewe:
Uruganda rw'umucuzi
Indobo yo gukonjesha
Amafashi y'umucuzi
Umwenda wa emeri6
6
Handle
Handle
Shave the handle stock to fit the eye tightly, drive the head on, saw a kerf in the handle's top and drive a glued hardwood wedge into it. Trim flush and oil the handle.
Ibikoresho by'iyi ntambwe:
Igiti gikomeye cy'imikondo1 igice
Igitsindo cy'ibiti bikomeye1 igice
Amavuta y'Ubudodo10 mlIbikoresho bikenewe:
Ikirwanya gifite imifatiro ibiri
Umusumeno w'abantu babiri
Ifatiro ry'AmezaIbikoresho
4- Umwanya
- 1 igiceUmwanya
- 1 igiceUmwanya
- 10 mlUmwanya
Ibikoresho bikenewe
18- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame
CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.



