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You will be given a piece of MDF wood for the top of your steady hand
machine.
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MDF: Medium-density fibreboard is an engineered wood product made by
breaking down hardwood or softwood residuals into wood fibre, often
in a defibrator, combining it with wax and a resin binder, and forming it
into panels by applying high temperature and pressure. MDF is
generally denser than plywood.
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With your beam of softwood, you will cut it
into four parts with the Tenson Saw.
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Cut your beam to the size required for the
MDF top.
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You will use a half lap joint in each corner
to make the sides of your box.
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Use your Marking Gauge, Tri
Square and Steel Rule to mark
out your half lap joint.
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Use the Tenson Saw to cut your lap
joint.
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Use your Chisel to tidy up the joint
ensuring that it fits together.
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Do not use sandpaper or a file to
tidy up the joint or remove extra
material as it will not be
accurate and leave a curve.
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You will use PVA glue to attach the
parts together.
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In a basic circuit we use symbols to
represent different components.
This is something you should be
aware of from your science lessons.
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How we wire different components
together is also important in our
circuit. We have two output
components being our buzzer and
our light. We can wire these in
series or in parallel.
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