Return to list of exhibits      Billiard Ball Scattering - Assembly

Parts Supplied:

Two slotted base pieces, with two large screws in each.

One triangular piece, for catching the balls.

One octagonal base, with four holes for the screws.

One circular 'billiard table'.

One large metal tube, with wires attached to it.

Three metal rods (on their own).

One metal rod with wires going through it, plus four Phillips screws.

One camera base, with attached digital camera.

One power supply (gray box) and power cable.

One PC, with monitor, keyboard, mouse and power cables.

One Phillips screwdriver.

One set of billiard balls, 1 white, 1 yellow, 1 pink and 10 red.

For a picture of the disassembled exhibit, click here.

Parts Needed:

One small flat-headed screwdriver.

One spirit level.


Assembly Instructions:

1)     The two pieces which make up the base slot together at right angles, push them together until they will go no further and don’t wobble.  NB, this can take a bit of force.

2)     The next piece is used to catch the balls and is triangular in shape with a square centre, slot this into the centre of the base.  NB it should be on a slight angle sloping outwards. See picture here.

3)     Next, the octagonal table is slotted onto the base, using the four large screws, which stick up from the base.  The screws are not in a square and so the orientation of the table has to be correct.  Once the screws are all in, the top of the base slides into four slots on the bottom of the table.  See picture here.

4)     The next piece is the round ‘billiard table’, this has two brass ferrules on its base which slot onto the two screws which have smooth ends.

5)     The table now has to be leveled, which requires a spirit level (not included), the height of the table can be adjusted using the four large screws from the underside of the table, when the table is level, the screws can be locked in place using their respective locknuts.

6)     The next step is to assemble the camera support, these are the four metal rods, three of them slot into the three brackets on the side of the octagonal table, the fourth one (the one with wires going through it) does not have a bracket on the side of the table, the bracket is part of the rod and has to be screwed onto the table using the four small Phillips screws.  See picture here.

7)     The camera, on its platform, now slots onto the top of these four rods, two of the slots go all the way through the board.  The rod with wires should go into the slot which is nearest all the connectors on the top of the board.  Once all the rods are firmly in place, tighten the wing nuts to secure them.  See picture here.

8)     The camera angle can be changed, however, this is best done once the system is up and running so that the effect can be seen.

9)   For disassembly, follow the instructions in reverse order.


Electrical Connections:

1)     The camera cable, black, with silver connectors at both ends slots into the top of the camera and into an equivalent slot on the back of the computer.

2)     The power supply (gray box) plugs into the mains.

3)     There are two sets of two wires, which plug into the power supply, both are thin, twisted, black and red wires.  However, you can tell them apart.  On one set, the red wire has a white spot on the end, this wire plugs into the yellow connector on the power supply, its partner black wire plugs into the horizontally adjacent black connector.  The other set of wires slots into the connectors immediately above the first set, with the red wire going in the red connector, and the black wire in the black connector.

4)     Next, the camera has to be connected to its power supply, this is done by connecting the two thin red and black twisted wires into the connectors on top of the camera board.  There are six connectors in all, but only the middle two should be used, they are marked camera.  Check on the other side of the connector to see which way round the wires should go, and connect the red wire up to the connector with a red wire on the other side, and the black wire to the other connector.

5)  The twisted yellow and green wire has to be fixed into a grey and black wire that comes out of the back of the keyboard.  Without this wire, the program will not automatically start recording when a ball is fed down the tube.

6)     All that is left is to set up the computer and switch it on.