Formula to calculate injection time

[Mauricio]

Is there a practical formula to calculate the injection time part of and injection moulding cycle time?

[Danny R]

4 years later and still no answer: http://www.plastics.com/communities/viewtopic.php?f=6&t=26798

You could probably come up with a formula to calculate the fill time but it would just be an estimate since the fill time depends on many actual values and part designs.