Proper way of doing assembly design
Proper way of doing assembly design
(OP)
Dear All,
I would like to do an assembly from several subassemblies and parts and was wondering what is the most proper way of doing this?
Should I first create subassemblies as individual assemblies in separate files and then insert them in the final assembly or should I start with the final assembly and then crate subassemblies in this single file?
Thanks & Regards,
Bostjan





RE: Proper way of doing assembly design
RE: Proper way of doing assembly design
RE: Proper way of doing assembly design
Think of a model of a car. The door panel is a part that always goes in only one location. Therefore it may be best to model the door in context of the whole car assembly. But the wheels go in several locations, so those should be modeled separately and then placed into the car assembly.
Specifically, I work with aircraft tooling. In that world, we follow a method that the subassemblies (and parts) are created within the top assembly for anything that is unique to a particular part of the aircraft. This way, when you insert both the tooling model and the aircraft part into an assembly, all the models line up in the correct location and orientation and do not need to be positioned. This method of positioning is extremely important for my type of work.
For other assemblies (and parts) that are more generic, used in many places, it is better to make up the subassemblies on their own and position them in the top assembly later.
Cheers,
Mark
RE: Proper way of doing assembly design
RE: Proper way of doing assembly design
It's the case of: do you check your bumper, when you go to adjust your mirror? if it's not in separate sub-assemblies, Catia will. (SolidWorks is identical in this regard)
Certified SolidWorks Professional
RE: Proper way of doing assembly design
In my opinion you have to follow company's rules and methods...and most of companies are saying that you have to create first the parts , then sub assemblies and then big assemblies (or integrate them in a SAM - Space Allocation Model).
This is normal if you think that we live in a world concentrated on short terms deliveries and profit , which means reusing parts and assemblies or variants of them is something currently and normal... that's why most of companies prefer to create everything with their own axis and not with a specific axis (of course, you can find exceptions)...
Also, companies are defining the methods how to model parts, in a specific way and many times as you don't like...and this is done for different reasons (luck of license, agreements with different manufacturers, a.s.o.)
Regards
Fernando