A popular way to make things out of metal is a process called die casting. Die casting is when you pour melted metal into a cast, and let it cool and harden into the shape. When die casting metal, there will be shrinkage of the metal as the metal cools. To properly make a mold for die casting, you will need to calculate the total shrinkage and take the shrinkage into consideration when making your mold.
Things You'll Need
Measure the height, length and width of the product you are trying to design. Write down each measurement.
Multiply the height times width times depth.This will give you the total volume of the product you are trying to create.
Multiply the total volume by .06 to find out the total shrinkage. When die casting the metal will shrink about .6 percent after cooling.