The injection location represents the position where polymer is injected, allowing the software to simulate the flow pattern inside the mold cavity.
The position of an injection location is an important factor in determining an acceptable fill pattern. In order to mold the best part possible, you must identify the optimum injection location for your part. The optimum injection location creates balanced filling pattern, allowing the extremities of the mold to fill at the same time and pressure. If your initial analysis indicates that the fill pattern is unbalanced, you may be able to solve the problem by altering the injection location, or adding another one. In instances of thick and thin sections, it may be desirable to position the injection location near thicker sections to achieve uniform packing.
Unbalanced flow (above) Balanced flow (below)