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Sub-Assemblies "Fixed" do not stay "fixed" in Parent assemblies.

VanJrVanJr Member Posts: 9
I'm coming from a Solidworks background...
I imported an x_t file that contains many parts and surfaces into a single document. I don't want to have to "mate" the parts and surfaces. I just want to "fix" them in space. So I did that. I highlighted all the parts/surfaces and "fixed" them. However, when I pull the document assembly into another assembly all the parts are no longer "fixed".

https://cad.onshape.com/documents/a6e5063b0252ed2bcaeaf3c2/w/e6f09ba8ec1de4b65964b6c1/e/6bd3b095429ed2be2ddd8822

I'm sure I'm missing something. I want the vehicle to stay as "one unit" (i.e. grouped) so I can move it, rotate, position it, etc. But the parts/surfaces are selectable and move individually.
Tagged:

Best Answer

  • tim_hess427tim_hess427 PRO Posts: 170 PRO
    Accepted Answer
    Hi @VanJr ; - try the "Group" command after pulling the sub-assembly in to another assembly. This will constrain all the parts in place relative to each other. Then you can move/fix/mate the sub-assembly where you need it.

Answers

  • tim_hess427tim_hess427 PRO Member Posts: 170 PRO
    Accepted Answer
    Hi @VanJr ; - try the "Group" command after pulling the sub-assembly in to another assembly. This will constrain all the parts in place relative to each other. Then you can move/fix/mate the sub-assembly where you need it.
  • bradley_saulnbradley_sauln Moderator, Onshape Employees, Developers Posts: 273
    edited July 3
    That is correct and is working as designed. We fix parts within their current assembly so that we can establish our mates between them and don't have parts floating around. Only mates carry over to the top level as that is how you described the parts to interact. If you want a group of parts to move with relation to each other you can 'Group' them together as such. 

    If you use the command search and look for 'group' while in the assembly, you will find what you are looking for with this use case :)

    You can learn more about how our assemblies work in the help documentation: https://cad.onshape.com/help/Content/assembly.htm?tocpath=Assemblies%7C_____0

    or the learning center: https://learn.onshape.com/courses/fundamentals-onshape-assemblies
    Engineer | Adventurer | Tinkerer
    Twitter: @bradleysauln


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