In Option B, the gating system consists of five gates feeding metal into the mold cavity along the length of the casting.

This gating approach is preferred because:

• Metal feed directly into the panel from multiple positions with short flow paths, reducing the risks of misruns and unfilled wall sections.

• The heavier stub intersections with the casting wall (the last sections to solidify) are individually fed by direct gate contacts.

There should always be liquid metal in the gating system to feed solidification shrinkage and prevent the formation of porosity in the casting.