Make the conductors:
the craft knife, carefully cut around the bottom of the film
canister to |
remove it, leaving a hollow tube.
the craft knife to make a small hole in the centre of the film
canister lid. |
** This is to hold the light bulb – cut slowly, enlarging
the hole a little bit at
a time until the bulb fits tightly. The light bulb can be
left in place.
a small hole near the bottom edge of the canister with the bottom |
removed. Put a piece of yarn or string through the hole and
tie the ends
together to make a loop for hanging.
Assemble the lid:
|Print out the patterns. Make sure the dimensions shown are
|Attach the pattern to the aluminium using a bit of tape.|
|Cut out both pieces.|
|Use a craft knife to cut the "X" in the centre of one
piece as shown.|
|Insert the light bulb into the hole in the lid.|
|Fold the conductor strip with the "X" cut into it at
the edge of the circle so |
it resembles a soup ladle.
|Carefully fit the round part of the conductor inside the
lid. Push the end of |
the light bulb through the "X".
|Wrap a small piece of duct tape around the base of the light
bulb to hold |
the points of the conductor strip in place. ** Make sure you
don't cover the
bottom of the bulb!
Assemble the base:
Fold the second conductor strip as with the first.
Insert the folded strip into the pill bottle so
the round part rests on the bottom.
Wrap a 2 cm wide strip of corrugated cardboard
around the battery.
Place the battery in the pill bottle so the
negative end rests on the conductor
at the bottom.
Add extra cardboard if necessary to stabilize the
battery in the centre of the
Fold the end of the conductor strip down on the
outside of the bottle.
Assemble the flashlight:
Place the lid on the outer canister, allowing the
conductor strip to hang
down on the inside of the canister.
Fold the excess conductor strip up on the outside
of the canister,
& tape in place.
Place the film canister over the pill bottle with
the conductors strips
Push down gently on the outer canister. When
the base of the bulb
touches the positive end of the battery, the flashlight should go
Turn the light off by pulling the canisters apart
slightly or twisting so the
metalstrips are not touching.
|The outside of the outer film canister can be covered with tape or a
|If two film canisters are used (instead of a pill bottle), prepare
the inner |
canister by trimming off the top rim. Cut a slit part way up the
side of the outer
canister to allow it to fit over the inner one. After the
flashlight is assembled,
cover the slit with tape or a label.