Venting

by Cliff
(Australia)

Where is the best location for venting in a mould?

Answer:

The vents should be located at the last areas to fill in the mould cavity.

In this way the plastic will push the air through the vent.

If the mould is designed and built correctly then the last areas to fill will be at the shut off surfaces of the mould cavity, that is, on the face of the cavity.

This is the easiest place to machine the vents.

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