Transcript moving toy AL

D.T. unit 5C: Moving Toys
How to make a moving toy.
Materials:
• 2 pieces of stiff card, 21cm x 15cm
• 6 card discs, 4cm in diameter
• A block of balsa wood, preferably 10cm long and 1cm
thick
• 2 dowling rods, 4mm in diameter
Equipment:
•
•
•
•
•
Glue stick and hot glue gun
Hacksaw
Craft knife
Hammer, phone-book and nail (for hole-punching)
Ruler, pencil
15cm
22cm
11.5cm
1. Take one of your pieces of
stiff card (22cm x 15cm) and
measure halfway along its’
length (11.5cm). Mark it, and
repeat on other side. Draw a
line across. Lightly score with
craft knife.
2. Carefully fold the card into a
right-angle.
7.5cm
4cm
3. Measure halfway along the fold; it
should be 7.5cm. Then measure
4cm up from this point, and mark it.
4. Place the card on the phone
book. Carefully use the hammer
and nail to punch a hole through
the card on the spot you marked.
2cm
2cm
2cm
2cm
2cm
5. Take the other piece of stiff card,
and measure 2cm along the long edge
from the end. Mark it. Then measure
2cm from this mark, and mark that too.
Repeat on the other side. Join the
marks so that you have 2 lines across
the card.
2cm
6. Use the craft knife to cut off the 2
strips you marked. Then measure
2cm from each end of the strip,
draw a line, and lightly score with
the craft knife. Fold these ends
over, to about 45 degrees.
7. Use glue stick to glue these
strips in place as supports on
the right-angled piece of card;
put them at either end.
8. Next, take 3 card discs and
glue them together with glue stick
to make one thick wheel. Make
sure the centre holes line up.
Repeat with another 3 discs so
you have 2 thick wheels.
9. Take one of your thick wheels
and measure from the edge to
the centre hole. It should be
around 2cm. Mark the halfway
point along this line (1cm).
10. Place the marked wheel on
the phone book. Use the hammer
and nail to punch a hole all the
way through, on the point that
you marked.
Leave a small amount
of dowling poking out.
Thread the
rod through
both wheels
Leave a small amount
of dowling poking out.
11. Take one of your dowling rods. Push it though the centre of the wheel
that only has one hole. Then push it through the hole you made in your
cardboard stand. Then push it through the hole you made in your second
wheel. Make sure this second wheel can turn freely without hitting the
bottom of the stand. Trim the rod with the hacksaw so there is just a small
length of rod sticking out either side.
1cm
10cm
1cm
12. Take your balsa wood block. Measure to
make sure it is 10cm long and 1cm thick.
Then measure 1cm in from the long edge,
and mark it. Do the same at the other end.
Join the 2 marks so that you have a line
running along the length of the block, 1cm
from the edge.
13. CAREFULLY use a craft
knife and a ruler to
repeatedly score along the
line you drew, cutting deeper
each time. Balsa is soft, so
you can almost cut all the
way through it.
14. Place your block on the edge of
the table, with the deep cut you’ve
made in line with the edge of the
table. Push down hard on either
side of the block, and it should
snap, leaving you with a piece
10cm x 1cm x1cm.
15. Repeat step 14 so you have 2
long thin blocks. Measure halfway
along one of them (should be 5cm)
and mark a line across it.
16. Gently make one cut with your
hacksaw along the line you drew.
Then make 2 more, either side, as
close to it as you can. You should
end up with a shallow cut, approx
3mm wide.
17. Repeat the 3 cuts you made,
gently making the slot deeper
each time. Stop just before you’ve
gone halfway through. BE
CAREFUL NOT TO MAKE THE
SLOT WIDER THAN 3MM.
18. Measure 10cm along a dowling
rod; mark and cut. Repeat so that
you have 2 10cm long rods.
19. Use the hot glue gun to glue
the 2 dowling rods together.
TAKE CARE: GUN AND GLUE
GET VERY HOT!
2cm each
20. Use the glue gun to glue the joined
rods into the slot in your 10cm balsa
beam. Leave to dry.
21. Take the other 10cm balsa
beam and measure 2cm from one
end. Cut off this piece with the
hacksaw. Repeat, so you have 2
2cm long pieces.
6cm
6cm
Glue pieces here
22. Measure 6cm from the edge of the upright part of your main
base and mark it on the rear side. Use the glue gun to stick one of
the 2cm long balsa pieces vertically to the card. Repeat from the
opposite edge.
2cm
23. Place the T-bar made by the dowling
rods and balsa beam glued together earlier
as shown, with the dowling rods between the
balsa blocks.
24. Take the last piece of
stiff card and measure 2cm
from the short edge. Draw a
line across and cut off this
strip with a craft knife and a
ruler.
Glue here
3cm
25. Take this strip and
measure 3cm from the
end and draw a line
across. Cut off this 3cm
x 2cm piece with the
craft knife.
26. Glue the 3cm x 2cm piece of card
across the two balsa blocks using glue
stick, keeping the t-bar in place. Make sure
the t-bar can move up and down freely.
27. The mechanism is now complete! When the wheel on the front is
turned, the off-centre wheel at the back turns on an axis, moving the t-bar
up and down. You can now attach your design to the front of the dowling
rod and decorate the rest of the front to produce your moving picture!