How to Shrink or Enlarge a Casting - Part 3 of 3

This is a third and final part of a three-part series on how to enlarge (also called pointing up) and alternatively, how to shrink the size of castings without the use of laser scanning, CAD/CAM and computer operated CNC machinery. The procedures for both are much simpler than one would imagine and avoids the cost and the complexity of high tech equipment. The two parts of this series described the steps on enlarging a casting by enlarging the mold and as an alternate, enlarging the casting. This article will describe a technique on how to shrink a silicone mold to create a smaller casting.



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