topic Re: Cannot save an assembly after changing a parameter in 3D Part & Assembly Design

Cannot save an assembly after changing a parameter

Hidetaka — Wed, 04 Dec 2024 03:13:20 GMT

I ran into a large assembly that I cannot save after changing some parameters.
The parameter does not seem to have anything to do with regenerating the assembly (it is date and designer name).
From the warning messages that appear after I tried to save the model, I have found 2 support articles, but I could not read them. Could someone please tell me what is in these two articles? Thank you so much!

https://www.ptc.com/en/support/article/CS258240
https://www.ptc.com/en/support/article/CS112336

Re: Cannot save an assembly after changing a parameter

KenFarley — Wed, 04 Dec 2024 11:50:13 GMT

The first (CS258240) indicates it is a result of regeneration failing. The "Resolution" in this case is:

Reported to R&D as SPR 6497841
Works to product specification for Creo Parametric
Creo Parametric returns to old/unexpected values, when regeneration is not completed and not sure if new value is suitable or not.

The second (CS112336) seems to relate to "Model is not regenerated" and "Mass properties are not calculated" errors. Its "Resolution" is

Reported to R&D as SPR 5152497
To disable model regeneration and mass calculation when saving model
Set config.pro options mass_property_calculate to by_request and regen_solid_before_save to no
To enable model regeneration and mass calculation when saving model
Set config.pro options mass_property_calculate to automatic and regen_solid_before_save to yes

Disclaimer:
PTC recommends to backup the config.pro file before modifying it

Re: Cannot save an assembly after changing a parameter

vnamboodheri — Wed, 11 Dec 2024 06:30:39 GMT

Hello @hidetaka.

It looks like you have a response from a community member. If it helped to answer your question please mark the reply as the Accepted Solution.

Of course, if you have more to share on your issue, please let the Community know so other community members can continue to help you.

Thanks,
Vivek N.
Community Moderation Team.

Re: Cannot save an assembly after changing a parameter

BenLoosli — Fri, 17 Jan 2025 16:48:01 GMT

I have found that changing a parameter value does not flag Creo to think the file has been modified and the file will not save with the message that file has not been changed. I then force another change, either a carriage return in the relations or delete an unnecessary parameter that we don't use. This will then 'force' the system to accept the change and do the save.

Re: Cannot save an assembly after changing a parameter

kdirth — Fri, 17 Jan 2025 18:40:50 GMT

It is preferred that models are stored in default orientation and occasionally I find that I cannot save because I the only change I have done since the last save is change the view on the screen. I will then either do a quick reorder (and back) or create a datum and delete it.

Re: Cannot save an assembly after changing a parameter

joe_morton — Fri, 17 Jan 2025 21:52:57 GMT

Are you sure the model is not saving due to the changed parameters?

Did you try just regenerating and saving with the parameters still present? What happens if you delete one parameter at a time and save it?

Re: Cannot save an assembly after changing a parameter

Dale_Rosema — Mon, 20 Jan 2025 12:46:00 GMT

Just a long shot, but is the place where you are saving the assembly in your search path.

Could you be saving it to a directory that is not in your search path and then when you open it again you are opening the old iteration?