• filling pattern

• gate location

• number of gates

• injection pressure to fill

• clamp force

• weld lines

• air traps

• material selection

• process window

• part weight

• gate shear

• flow hesitation

• cycle time

• cooling system design

• mold material evaluation

• locate hot spots

• inserts

Prediction of part warp based on:

• process conditions

• mold design

• part design

Due to:

• differential shrinkage

• differential cooling

• material orientation

• core deflection

• clamp over tonnage

• vent sizing

• structural analysis