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UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Pulley Wheel Set: Ten Grooved Hardwood Pulleys Turned in Graded Sizes
A pulley is a wheel on a shaft with a groove round its rim that keeps the cord or belt in place (Wikipedia, Pulley). This set is ten hardwood pulleys from 30 to 75 mm, each bored for an 8 mm dowel shaft, so any two can be keyed to one shaft for experiments such as the differential pulley. Sizes and method are ours.
The picture: our drawing.
Ophakathi
1 day
Imiyalelo
1
1
Cut the blanks
Cut the blanks
Cut ten round blanks from 18 mm hardwood with hole saws, from 30 to 75 mm in steps of 5 mm, each a few millimetres oversize.
Izinto zokwakha zalesi sinyathelo:
Ipulangwe Lokhuni Oluqinile1 ucezuAmathuluzi adingekayo:
Isethi yamasaha ezimbobo
Ibhola Elimile
Izibuko zokuphepha2
2
Bore the shaft hole
Bore the shaft hole
Bore each centre 8 mm, square to the face, for the dowel shaft.
Amathuluzi adingekayo:
Ibhola Elimile
Iqoqo Lamakhanda Ebhola
I-Caliper Yedijithali Yamayintshi Ayi-63
3
Turn rim and groove
Turn rim and groove
Mount each blank on the lathe, turn the rim true to its size, and cut a groove round it between two flanges, about as wide as the cord. Measure each finished diameter at the bottom of the groove and write it on the face.
Amathuluzi adingekayo:
Umshini wokuphendula ukhuni
I-faceplate ye-lathe
Insimbi yokubaza enomsele
Insimbi yokuhlukanisa emshinini wokuphothaI-Caliper Yedijithali Yamayintshi Ayi-6Izibuko zokuphepha4
4
Key hole and finish
Key hole and finish
Drill a small hole through the hub of each pulley beside the shaft hole for a pin, so two pulleys can be pinned together to turn as one. Sand and oil them.
Izinto zokwakha zalesi sinyathelo:
Uwoyela We-linseed20 mlAmathuluzi adingekayo:
Ibhola ElimileIqoqo Lamakhanda Ebhola
Iqoqo lamaphepha okuhlikihla
Izindwangu zekotini ezindalaIzinto
2- 1 ucezuIsibambeli
- 20 mlIsibambeli
Amathuluzi Adingekayo
11- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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