Elenco Solar Energy - Manual (Page 9)

8
Adult supervision is necessary for this task.
To build your furnace, ask an adult to use a craft knife to
carefully separate the polystyrene tray where the test
tube and other parts were stored. The parabolic base is
ready for use.
Lay your parabolic reflector in the dish and align it so that
the four cutouts at the edge of the dish are over the four
small holes in the polystyrene support.
Push a reflectors pin into each of the small holes so that
the pin head presses and holds the parabolic reflector
in place.
Slide the reflector legs onto the protrusions in the
polystyrene support as shown in the following diagram:
Be sure to push both legs in as far as they can go. One
of the protrusions in the polystyrene support has a
rectangular hole in it; be sure that it is completely on
the outside of the reflector leg.
Push the support reinforcer until its “half
circle” head is laying on the polystyrene
protrusion. Insert each of the two wire ends
of the test tube holder into each of the holes
in the support reinforcer.
Place the test tube into the test tube holder as
shown in the diagram.
BUILDING THE SOLAR FURNACE
parabolic
reflectors
polystyrene
support
cut out small holes
in the reflector
reflector pin
rectangular hole
dish
support reinforcer