topic Re: Severe Lag of Components with Constraints in an Inventor Assembly in Inventor Forum

Severe Lag of Components with Constraints in an Inventor Assembly

MichaelKidd3615 — Mon, 15 May 2023 16:01:39 GMT

I have an assembly with 119 parts and 152 occurrences. In addition, the part has nine members in the IAssembly table. The file is not a large assembly and yet I experience extreme lag when moving constrained components. When I place new components in the assembly with no constraints associated with them, there is no lag when dragging/ moving them. Only the components that are constrained together exemplify the issue. This problem shouldn't relate to system requirements, since my computer has 64 GB of ram, 3.20 GHz CPU base speed with 16 cores, etc. This is abnormal behavior, as we have significantly larger assemblies that work perfectly fine. Furthermore, we have tried rebuilding this assembly multiple times, with no luck in regard to the lag in the assembly.

Re: Severe Lag of Components with Constraints in an Inventor Assembly

JDMather — Mon, 15 May 2023 16:54:26 GMT

An assembly must have parts.

Re: Severe Lag of Components with Constraints in an Inventor Assembly

MichaelKidd3615 — Mon, 15 May 2023 18:06:08 GMT

Would you mind elaborating? If you open the file I had attached, you will see that the assembly consists of 119 unique parts and 152 occurrences, so I'm not sure what you mean.

Re: Severe Lag of Components with Constraints in an Inventor Assembly

SBix26 — Mon, 15 May 2023 18:59:17 GMT

You didn't include the parts. Zip all files together and attach here.

Sam B

Inventor Pro 2024 | Windows 10 Home 22H2

Re: Severe Lag of Components with Constraints in an Inventor Assembly

JDMather — Mon, 15 May 2023 20:24:00 GMT

@MichaelKidd3615 wrote:
Would you mind elaborating? If you open the file I had attached, you will see

An assemble file *.iam is merely a set of instructions on how the parts *.ipt go together.

If I open the assembly I will see unresolved link to 119 missing part files.

This is usually covered in first 10 minutes of assembly training.

What I am expecting to see is "sick" assembly constraints.

Are you using Vault, or are you using Projects *.ipj?

Are all of your sketches fully defined?

Any unresolved error shown in Relationships folder?

Manage>Rebuild All return any errors?

I can tell you that after you Pack and Go and then Attach the zipped assembly here - the first thing I am going to check after the previously mentioned items is the 6 Tangent constraints that you have in the assembly.

Then I will check the Angle constraints.

Re: Severe Lag of Components with Constraints in an Inventor Assembly

MichaelKidd3615 — Tue, 16 May 2023 13:17:17 GMT

If I use pack and go the file size would be over double the maximum 71 MB attachment size. I tried removing some of the members in the IAssembly factory and removing non-essential parts in the file, but it still exceeded the maximum size. How can I attach the file for you to review given this probelm?

Re: Severe Lag of Components with Constraints in an Inventor Assembly

SBix26 — Tue, 16 May 2023 15:14:27 GMT

Make sure that your Pack & Go is excluding Design Data & templates. Design Data, particularly, can be many GB in size.

Sam B

Inventor Pro 2024 | Windows 10 Home 22H2

Re: Severe Lag of Components with Constraints in an Inventor Assembly

MichaelKidd3615 — Tue, 16 May 2023 17:35:38 GMT

I got the file size small enough, but I can't upload it to this forum as an .ipj file. Am I doing something wrong with the pack and go?

Re: Severe Lag of Components with Constraints in an Inventor Assembly

JDMather — Tue, 16 May 2023 20:41:54 GMT

Right click on the project folder.

Send to Compressed (zipped) folder.

Attach the resulting *.zip file here.

(You can also do this from within Pack and Go.)

Re: Severe Lag of Components with Constraints in an Inventor Assembly

JDMather — Wed, 17 May 2023 12:48:58 GMT

@MichaelKidd3615 wrote:
I can't upload it to this forum as an .ipj file. Am I doing something wrong with the pack and go?

@MichaelKidd3615

You should have a zip file

See last check box.

And skip the extraneous stuff (might need Libraries, but first try without).