Already long time we do not have ESE lecture. This is because the public holday and factory visiting last week. This make our ESE lecture is lacking of time to complete it. What I heard from my friends from session 2, they already complete their mini project. But, my class just want to begin our mini project today.
In the beginning of the lecture, En. Redzuan show us a slide show about how to prepare a board. Actually this slide show En. Redzuan already showed us before, so I tell my friends about this problem, but my friends say it is okay, do not need to tell. So, I just keep quite and see the slide show again. I was found that something small information I already forget. It is good for us review again the slide show.
After see the slide show, we go to take our toolkit and soldering apparatus. We also need to bring our components to do this mini project. En. Redzuan assigns the original board to us. We use tape to stick the transparent circuit draft on the board. We be careful to stick the plastic because it make the tracks of the circuit. After that, we exposed the board to UV light for 90 seconds. And then, we take out the board and clean it by using sodium solution and acid. This is the dangerous step because acis is corrosive. Then, I take the board to be cutted by using a cutter to make the board in a suitable size. Then, I drill the holes for through hole components.
Then, En. Redzuan show us how to solder components on the board. He also make some sample for us to follow the sample to do. I take out the components and look on the schematic paper to know where are the correct position of components. After I totally understand the position, I begin to solder. I am very carefully because I know a bit fault will make my circuit board mulfunction.
It take a long time for us to do the soldering. We spend a lot of time until we already exceed the ESE lecture time which should end on 5pm, but we do until 5:45pm. Then, En. Redzuan tell us to tidy up the table. We bring the components, toolkit and soldering apparatus back to KSJ. We will continue our mini project tomorrow morning.
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