UBUCIKO
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UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
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REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
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Forged Geologist's Pick
Forge

Yenziwe ngu-

Forge

11. uMfumfu 2026NO
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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.
Osezingeni eliphezulu
4–6 hours

Imiyalelo

1

Mark and punch

Mark the stock with a centre punch and chisel, and punch the hole for the eye.

Izinto zokwakha zalesi sinyathelo:

Induku eyisicaba yensimbi yamathuluziInduku eyisicaba yensimbi yamathuluzi1 ucezu

Amathuluzi adingekayo:

Isibhoboza SesikhungoIsibhoboza Sesikhungo
Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Insimbi YokukhandelaInsimbi Yokukhandela
Isibhobozi esishisayoIsibhobozi esishisayo
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
2

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.

Amathuluzi adingekayo:

Isikhulisi semboboIsikhulisi sembobo
Isisiki esishisayoIsisiki esishisayo
I-fuller (insimbi yokwenza umsele)I-fuller (insimbi yokwenza umsele)
3

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.

Amathuluzi adingekayo:

Isando esiphakanyiswayoIsando esiphakanyiswayo
Isando esikhuluIsando esikhulu
4

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.

Amathuluzi adingekayo:

Isando sokubeka amahlombeIsando sokubeka amahlombe
Ithuluzi lokwenza kube yisicabaIthuluzi lokwenza kube yisicaba
Isisiki esishisayoIsisiki esishisayo
Umshini wokugaya wetafulaUmshini wokugaya wetafula
5

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.

Amathuluzi adingekayo:

Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Ibhakede lokupholisaIbhakede lokupholisa
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Indwangu ye-emeryIndwangu ye-emery
6

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.

Izinto zokwakha zalesi sinyathelo:

Ingodo Yokhuni Oluqinile YezibamboIngodo Yokhuni Oluqinile Yezibambo1 ucezu
Isikhonkwane sokhuni oluqinileIsikhonkwane sokhuni oluqinile1 ucezu
Uwoyela We-linseedUwoyela We-linseed10 ml

Amathuluzi adingekayo:

Ipuleni elinezibambo ezimbiliIpuleni elinezibambo ezimbili
Isaha yabantu ababiliIsaha yabantu ababili
Isibambo SebhentshiIsibambo Sebhentshi

Izinto

4

Amathuluzi Adingekayo

18

CC0 Isizinda Somphakathi

Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.

Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.

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