Logic Goats : or-goat

Logic Goats : or-goat Instructions You will need a craft knife or other sharp knife, a pair of scissors, some glue and a glue spreader. The best type of glue to use is white school school glue (PVA.) Print out the parts sheets onto thin cardboard. Photocopier card is ideal. Notice that the parts pages are marked front and back. Print out a front page, flip it over, then print the back onto the same sheet. Leave the ink to dry completely before continuing.

Dashed lines are hill folds

Cut out

Before cutting anything out, score along all the dotted lines and cut out any holes with a craft knife. Both these jobs are easier to do on full sheets of card. Dashed lines are hill folds, dotted lines are valley folds. Cut along the solid lines. Grey areas show where to glue

Dotted lines are valley folds

You’ll need four coins about this size

1

Shaded areas show where to glue.

Black lines show where to cut.

2 Glue the flaps 1&2 down.

Fold round and glue the two coin holders to make little packets. These provide weight to help the goat move more positively.

Fold over the two flaps (1&2) so that they are at ninety degree as show above and glue them into place. Glue together the box as shown in the picture. Assemble and glue on the box stiffener. (3-13)

3

Glue Glue together the two push buttons (14-25) as shown. Glue a coin holder into each push button.

o - r g o t a

4

and

Assemble the lower push rods and glue them into place on the push buttons. (26-29) Be careful with the next bit!

or-goat Instructions 1

a t go

Before you glue the push buttons into place make sure that you thread the two push rods up through the hole in the top of the box. Now glue the push buttons into place (30-31). Make sure that they move freely.

5

6

Assemble the neck (32) and the two lift links. (33-34) Glue the lift links to the neck as shown here. (35-36)

Pivot Lift link Hinge

Neck

Assemble the pivot and glue on the hinge. (37-38)

Coin holder Glue the hinge to the neck. (39)

Link bar

Assemble the two link bars (40-41) and glue them into place. (42-43) Assemble the two upper pushrods (44-45) and glue them into place. (46-47) Assemble the two-coin coin holder as shown in the and-goat instructions. instructions. Glue it into place on the neck. (48)

7

Glue the the alignment piece into place on the inside of the body as shown in the and-goat instructions. (49) Glue the pivot assembly to the alignment piece. (50) (Not shown in the picture)

Assemble the body inners (52-53) Glue the body inners into place carefully lining up the curved edges. (54-55) Glue the body back into place (57) Assemble the four legs and glue them into place. Make sure you match the the orange and green circles. (58-59)


Upper push rod rod

8

Assemble the head head and horns glue them into place on the neck. (60-65) Glue on the eyes, ears and assembled tail. Glue the left side feet to the box top (66) Carefully - this is tricky! - join the two halves of the two pushrods.

or-goat

Glue the last two flaps of the body back. (67) Finally glue the right side feet to the box top (68)

Logic Goats: or-goat At the heart of the computer is the logic gate. These microscopically microscopica lly small devices, including the and-gate and the or-gate are used to make the computer do it’s stuff. Each logic gate has one or more inputs and an output, in the case of the and gate the output turns on only only when both of the inputs are turned on. By wiring these gates together in complex ways devices can be made that add or multiply or play music or predict the weather. Logic goats work in the same way; though they may not be able t o predict the weather weather.. The The goat only nods his head when the blue button OR the red button OR both buttons are pressed.

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1

0

0

1

1

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1

or-goat truth table


Coin holder

Box

k u . o c . g i p - g n i y l . w f w w 3

4

10

9 8 6

. 6 6

6 8

6 6 .

Box stiffener

t u o t u C

1 3

8 6

. 6 6

6 8

6 6 .

13

o r g o a t

t a o g r o

8

7

6

Cut out

5

Coin holder

or-goat

or-goat: Sheet 1 Front

1 2

9

0 1

4

3

2 1 1

1

2

3 0

5

7

or-goat:: Sheet 1 Back or-goat

13

11

1 1

6

8

2

5 9

9 5

5 5

5 2

3 5

4 5

5 9

9 5

Body Inner

Body Inner

Back

2 2

n o t t u B h s u P

2 8

23

3 0

4 2

21

2 coins

48

5 1

7 1

Coin holder

n o t t u B h s u P

18


9 2

1 3

16

Back

5 7

7 5

5 2

4 2 5 5

5 5 3 5

3 5

5 7

7 5

k c a B k c a B

2 2 3 2

2 3

2 5

2 2

5 2

c o 2 i n 8

3 0

2 4

24

2 0

0 2

21 s n i o c 2

2 1

8 4

5 1 1 7

15

4 1

1 4

17

1 9

n i 9 o 2 c

9 1

1 3

6 1 1 6

or-goat: Sheet 2 back

1 8

8 1

Hinge 33

3 8

s n r o H

9 3

Head 6 2

6 2

3 6

43

Lift Link

s n r o H

35

3 6

Eyes

Ears

34

0 6

6 0

1 6

6 1

42

Lift Link 6 3

Pivot

Link Bar

35

43

6 4

37 36

k c e N

46 38

41

40 50

47

32

42

Link Bar

or-goat Sheet 3 Front

33

9 3

64 65 6 3

6 3

2 6

6 1 3 9

2 6

0 6

34 6 1

41

0 6

32 8 4

8 4

40

or-goat: Sheet 3 back

37

5 6

Body back Tail

t n o r F

7 5

5 0

A l i g n m e n t p i e c e

d o r h s u p r e w o L

2 7

6 7

d o r h s u p r e w o L

7 6

2 6

Upper push rod

Upper push rod

44

45

59

59

s g e L

5 8

5 8

y d o B

59

59

5 8


s g e L

5 8

29

28

6 2

44

6 4

45

9 4

7 2

7 4

4 5

6 7

6 5

6 5

5 7

8 6

8 6

8 6

9 4

8 6

6 7

6 5

6 6

55

6 5

6 6

6 6

6 6

or-goat: Sheet 4 Back

t n o r F

Logic Goats : or-goat

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