Casting

Question 1

Casting- step 1

Answer 1

Cover the mould in chalk. Place the mould halfway into a wooden box and fill with sand, compressing between each fill until the top of the box is reached. Flip the box over and repeat on the other side.

Question 2

Casting- step 2

Answer 2

Take the box apart so you have two identical halves. Remove the mould.

Question 3

Casting- step 3

Answer 3

To allow air to flow, create a small dip next to the mould shape. Cut out a cylinder in the same space on the top half. Cut out a second cylinder on the top half where you are going to pour the molten metal. Place both slides back together.

Question 4

Casting- step 4

Answer 4

Heat in a furnace the metal until molten and remove any hydrogen by prodding it.

Question 5

Casting- step 5

Answer 5

Pour metal in and remove any wooden supports plus the sand. Let it cool.

Question 6

Casting- step 6

Answer 6

Use files to remove any marks made by the tools and sandpaper to smooth. Add any desired finishes.