18 A Water Hyacinth Harvester
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8. Bearing
Bearing was put in the paddling mechanism and used to support smooth paddling.
9. Marine paint
Marine paint was used to paint the whole model after fabrication.
The paint was to avoid rusting of the model and helps to make the model good
looking.
10. Synthetic rope
Synthetic rope was used to connect the steering wheel with rudder. It was also
used to tie the anchor.
Furthermore, the rope was used to tie the model and secure it when berthing.
11. Polystyrene box
Polystyrene box was used to add on buoyancy of the model.
12. Used car tyre
Used car tyre was used to create a fender used to absorb the kinetic energy of the
model prevent damaging itself from other vessels and berthing structures.
18.3.2 Fabrication
In this sub-chapter, steps taken in constructing of the water hyacinth model as shown
in Fig. 18.1 will be explained.
• Measuring and marking
This was the first step. Here the aluminium plate was measured by using a tape
measure, square ruler and it was marked by using a scriber and marker pen.
Fig. 18.1 Water hyacinth
harvester model before
painting