Subassembly only reference all the parts, it doesn't store all the parts.
When its saved as part, it'll store all the parts inside hence more info, bigger file.
What is the total size of the subassembly and all the parts in it? Is it bigger then the single part?
Also even after you save an assembly as part, it's still multi-parts, multi-bodies in that file.
Try combine as many solid bodies as you can to simplify the model.
Hi Frederick !
Thank you for your answer. Yes it seems logical now...
The whole system is 4.4 KB without conversions, now is 5.7 KB. It is composed of many assemblies.
So yesterday I decided to 'combine' these assemblies. But what do you mean really by 'combine' ?
I mean I just have created new assemblies composed of previous assemblies and I have converted these new assemblies in part - with the option All Components -. I do not need movements between the previous assemblies.
On other posts, they talk about a special function 'Combine' in Properties but I have not understand the idea, are you talking about this function ?
Thank you again !
After an assembly is converted to part, its a multi-body part.
You can see from the tree there are multiple solid bodies.
There is command to Combine those solid bodies into one.
Thank you Frederick !
It reduces the size of the previous part but it has always a larger size than the assembly...
Also the combine is created in the same file, in the previous part, but yes it nevertheless reduces the size.
I will try to combine all the parts and I will launch a simulation. I hope it will take less time thanks to the fact that all the parts are stored in the same file.
Do you have any flexible assembly?
Problem may not be parts in one file.
Problem could be some are able to move.
I don't know if fixing the parts would help.
Thank you Frederick but it has not worked in my case.
If you have problems in reducing the size of your part (after conversion with ALL COMPONENTS), try this solution :
1) Combine as much as solids as you can. Insert > Features > Combine and choose all the solids you want to combine.
2) Save your part as XB file.
3) Open your XB file and save as Part. Your size is now twice smaller than the previous size of your assembly !!
GOOD LUCK !!