Aluminum lizard sand casting

In this sand casting project I used one sprue and two risers making sure the mould cavity would be full with molten aluminum and enough aluminum to "feed"the casting without having any shrinkage.

Making a mould with a pattern that is flat on one side is very easy and it didn't take too long to prepare.

In the image you can see that the risers did their part by feeding the mould and preventing casting defects.
The finished Aluminum lizard------>
This is my II aluminum lizard casting I made on July 2011: