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Iron Axle and Cams for a Trip Hammer, Forged from Wrought Iron
Forge

Yenziwe ngu-

Forge

17. uMfumfu 2026NO
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Iron Axle and Cams for a Trip Hammer, Forged from Wrought Iron

A trip hammer is raised by a cam and drops under its own weight. The cams are lugs on a revolving shaft turned by the water wheel; each one lifts the helve once a turn. Forge a wrought-iron axle with a squared middle and three curved cams that slide on and are wedged tight. The picture: our diagram, side and end view.
Osezingeni eliphezulu
Three days with a striker

Imiyalelo

1

Weld up the axle

Bind wrought-iron bars into a faggot as long as the shaft, bring it to a welding heat, sprinkle with sand and weld it solid with a striker, a heat at a time along its length.

Izinto zokwakha zalesi sinyathelo:

Insimbi yokukhandwa eyindukuInsimbi yokukhandwa eyinduku25 kg
Induku yensimbi ekhandiweInduku yensimbi ekhandiwe1 m

Amathuluzi adingekayo:

Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
AmalahleAmalahle
Isihlabathi EsicolekileIsihlabathi Esicolekile
Isando esikhuluIsando esikhulu
Isando somkhandi wensimbiIsando somkhandi wensimbi
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Insimbi YokukhandelaInsimbi Yokukhandela
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
Ipheshana LesikhumbaIpheshana Lesikhumba
2

Shape the axle

Leave the middle square for the cams and draw both ends round for the journals. Flatter the square true and file the journals smooth.

Amathuluzi adingekayo:

Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Ithuluzi lokwenza kube yisicabaIthuluzi lokwenza kube yisicaba
Isando esikhuluIsando esikhulu
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Insimbi YokukhandelaInsimbi Yokukhandela
Insimbi yokuhlikihla izinsimbiInsimbi yokuhlikihla izinsimbi
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
Ipheshana LesikhumbaIpheshana Lesikhumba
3

Forge the cams

For each cam, forge a thick curved lug on a boss. Punch the boss and drift it square to slide over the axle's square.

Izinto zokwakha zalesi sinyathelo:

Insimbi yokukhandwa eyindukuInsimbi yokukhandwa eyinduku6 kg

Amathuluzi adingekayo:

Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Isibhobozi esishisayoIsibhobozi esishisayo
Isikhulisi semboboIsikhulisi sembobo
Isisiki esimiswa ensimbini yokukhandelaIsisiki esimiswa ensimbini yokukhandela
Isando esikhuluIsando esikhulu
Isando somkhandi wensimbiIsando somkhandi wensimbi
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Insimbi YokukhandelaInsimbi Yokukhandela
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
Ipheshana LesikhumbaIpheshana Lesikhumba
4

Fit and wedge

Slide the three cams onto the square at equal turns round the shaft, each lined up with the helve's tail. Drive iron wedges beside each boss until tight.

Izinto zokwakha zalesi sinyathelo:

Induku yensimbi ekhandiweInduku yensimbi ekhandiwe0.5 m

Amathuluzi adingekayo:

Isando somkhandi wensimbiIsando somkhandi wensimbi
Insimbi yokuhlikihla izinsimbiInsimbi yokuhlikihla izinsimbi
Insimbi YokukhandelaInsimbi Yokukhandela
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
Ipheshana LesikhumbaIpheshana Lesikhumba
5

Blows per minute

Ilayisha incwadi ye-Jupyter…

Izinto

2

Amathuluzi Adingekayo

15

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