issue with iProperties mass not always updating properly

[montylowe]

I'm having issues with the mass of my parts not updating after I change material via ilogic code. It is acting like the mass is is an override. If I delete the mass manually and update it then become the correct mass. The code I am using is very basic. Any help would be greatly excepted......

Monty

Select Case HDRMATL
Case = 1
iProperties.Material = "SA516-70"
Case = 2
iProperties.Material = "SA516-70N"
Case = 3
iProperties.Material = "SA240-304"
Case = 4
iProperties.Material = "SA240-304L"
Case = 5
iProperties.Material = "SA240-316"
Case = 6
iProperties.Material = "SA240-316L"
Case = 7
iProperties.Material = "SA240-S31803"
Case = 8
iProperties.Material = "SA240-S32750"
Case = 9
iProperties.Material = "SB424-N08825"
Case = 10
iProperties.Material = "SA537-CL1"
Case = 11
iProperties.Material = "SA387-11"
End Select

[MjDeck]

You don't have another rule that is setting the mass?

If there is an override, you can remove it in your rule.  Add this to the end of the rule:

iProperties.Mass = -1  ' remove the override

InventorVb.DocumentUpdate()

mass = iProperties.Mass  ' recalculate the mass

[montylowe]

Thanks Mike

Works great

[montylowe]

Mike having an issue with the mass updating now all values are N/A

[MjDeck]

The values are N/A when you open the iProperties dialog, right?  I think that's normal behavior.  The mass isn't calculated until it's requested.   Can you provide more details and maybe post a part?

[montylowe]

Can you request it to be calculated per ilogic code?

[MjDeck]

Yes, you can recalculate the mass using the code that I posted above:

InventorVb.DocumentUpdate()

mass = iProperties.Mass  ' recalculate the mass

But if you put this in a rule, the question then is: how do I make sure this rule gets fired?  Do you really need the mass to be always up-to-date?   How do you use the mass?

On the Tools -> Application Options dialog, on the General tab, there is an option Update physical properties on save.

[montylowe]

Spoiler

It is part of a BOM rule the sets custom var's to populate the BOM structure. I am contorling the rule with Event Triggers.

[MjDeck]

If you are modifying Inventor parameters in the same rule, you should add another statement:

RuleParametersOutput()
InventorVb.DocumentUpdate()
mass = iProperties.Mass