BOM Structure Issue, unable change value

[spascual]

Hi sirs,

I have some parts in reference mode as bom structure value.

If I try to change to normal value, when change row, it returs itself as reference.

What can I do??

Inventor 2010 SP3 x64

regards

[tjvz85 · Accepted solution]

Almost a decade later and the problem persists. Hopefully it helps someone in the present.

BOM Structures for some sub assemblies were randomly (or not) changed to Reference and I could not get it to change back to Normal. Tried it in the Top assembly's BOM, tried it in the sub assembly's Document settings, nothing worked. When clicking away it changed back to Reference.

Solution: In the Top assembly, right click the component in the Model Browser, go to iProperties/Occurrence and adjust BOM Structure to Default. This will be Normal for normal components and Purchased for Content Center etc.

Regards Theo

[blandb]

In the model browser, just right click on the component > BOM Structure and set to default (normal)

[tjvz85]

Missed that in the context menu, thanks

[johnsonshiue]

Hi! If I understood your issue correctly, I think there was a bit confusion here. The BOM property of a given component can be controlled in two ways. 1) Within the component document (iam or ipt), you can go to Tools -> Doc settings -> BOM. There you can change the default BOM Structure type. This setting persists when you place the component in an assembly. Once it is placed in an assembly, the occurrence of the component can have a different BOM Structure type.

2) Within the assembly where the component exists, the BOM Structure type can be changed to Default or Reference. For example, you have Part1:1 and Part1:2 in an assembly. Part1:1 can be Default Normal, while Part1:2 can be Reference. This means Part1:2 is not counted on the BOM table.

I think what you are trying to do is to alter the occurrence BOM Structure type across level. This cannot be done. You need to open the immediate assembly where the occurrence exist (not the top-level assembly). Then change the BOM Structure type for the occurrence there.

Another possibility is that the given component is a library component which is readonly and it cannot be edited.

Many thanks!

[tjvz85]

Hi Johnson,

Thanks for your feedback. From what I found while looking for a solution, I gathered this much, as you explained.

I literally missed the BOM Structure option in the context menu when right clicking on the component in the model browser. My eyes went straight down to Bill of Materials.

The problem came when I opened my top assembly drawing and some components were showing as Reference, and then I couldn't change them back to Normal in the top level. This might have been set by a form I am using to suppress components, for different configurations of the top assembly. But this is speculation because there is nowhere where the code is supposed to set BOM Structures.

So the right click in browser and change BOM Structure is also accessible by right click/occurence/BOM Structure. Same function.

Thanks again for the feedback and clarity. I understand that components can be permanently set as Reference, or by occurence in various assemblies.

Regards

Theo