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COMPONENTS
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Buzzer, 35-0245
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Above is the buzzer used in the project. Rapid sell it but it's a bit expensive. You can use any buzzer that works from 6 to 12 volts. A cheaper alternative is shown below.
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Buzzer, 35-0100
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| Below is the 20mm fuse holder used which has 1.5mm PCB connections and a 3mm fixing hole in the centre. |
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Fuse holder, 26-0165
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BASIC STAND SHAPE
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There are 3 bends that serve to form the stand and the holder for a PP3 9v battery. We used a strip heater and wooden formers to get accurate bends. It helps to bend slightly further than 90 degrees so the battery is gripped tighter.You can also drill a hole near the top centre and hang it on a wall.
Below is the drilling template for the fuseholder.
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ACRYLIC TEMPLATE
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Above is the standard piece of 3mm acrylic all students were given.
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