Centralized gates provide equal flow lengths to all extremities of the part. This results in more even packing in all directions and a lower shrinkage difference, which lead to a higher quality part and lower rejection rate. Figure 1 .
Centralized gates provide equal flow paths to all extremities of the part.
Gate symmetrically to avoid warpage Parts intended to be symmetrical should be gated symmetrically. Asymmetric flow paths will allow some areas to be filled, packed, and prematurely frozen before other areas of the part are filled and packed. This will result in differential shrinkage and subsequent warpage of the part. Figure 2 . Symmetric parts should be gated symmetrically.