Creating curves
A curve is a geometric line on your model. Curves can be straight lines between two points, or arcs made of three or more points. Curves, along with nodes and regions, are the building blocks of a model.
Breaking curves
Use the Break command to create new curves by breaking existing curves at their intersection.
Modeling hot and cold sprue/gates/runners
This topic describes how to specify a hot or cold sprue/gate/runner at the same time as creating the curve for the model entity.