CAD tip # 9659:

Question

CAD
% platform category

iLogic: adjusting model parameters to match model volume or mass

You can use iLogic code to automatically adjust parameters of your Inventor model to yield a specific volume or mass of the model. You can use it in iteration loops without calculating the volume mathematically.

This is a concept - a sample code accessing and increasing the d1 parameter by 10% while checking the resulting Volume of the model (you can replace it with Mass):

ThisApplication.CommandManager.ControlDefinitions.Item("AppUpdateMassPropertiesCmd").Execute
myVolume = iProperties.Volume ' or Mass
MessageBox.Show("Volume before = " & myVolume, "iLogic")
d1 = Parameter("d1")
MessageBox.Show("d1 before = " & d1, "iLogic")
Parameter("d1")=d1 * 1.10
ThisDoc.Document.Rebuild()
d1 = Parameter("d1")
MessageBox.Show("d1 after = " & d1, "iLogic")
ThisApplication.CommandManager.ControlDefinitions.Item("AppUpdateMassPropertiesCmd").Execute
myVolume = iProperties.Volume ' or Mass
MessageBox.Show("Volume after = " & myVolume, "iLogic")

Inventor

* CAD

22.1.2014 5431×

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Inventor

Product Design Collection

applies to: Inventor ·

See also:
Tip 13311:	How to bulk transfer iLogic rules and forms from Inventor source documents?
Tip 13211:	Automatic numbering/renaming of multi-volume bodies in a part.
Tip 13197:	How to transfer a model or sketch parameter to iProperties?
Tip 13040:	iLogic - display information about complexity of an Inventor part.
Tip 12828:	How to quickly delete 3rd party links to external objects in Inventor?

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