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working with multiple objects

Hello, I am new to onshape. I am working on 2 piece which should connect together once 3d printed. I have made one piece so far and I am just wondering if there is an easy way to make sure my second piece will fit with the first piece? 

I have seen that i can make an assembly to position them together, but if i want to edit the second piece i need to leave the assembly to make the changes and go back. 

is there a way to import the first piece into the second piece's file to use it as a reference?


  • dick_van_der_vaartdick_van_der_vaart Member Posts: 49 PRO
    Best to start viewing some tutorials first, like this one https://www.onshape.com/videos/multipart-design

  • owen_sparksowen_sparks Member, Developers Posts: 2,259 PRO
    edited January 2018
    Hi, as ever with CAD there are several approaches to this.

    (a) In hindsight the answer is to model both pieces in one partstudio.  OS excels in modeling multiple parts together.  This allows a dimension on Part B to be projected off Part A, or for Part B to be subtracted from Part A.  The general rule of thumb is if they're geometrically related then model them together.  If two parts are unrelated then for clarity and performance then model them in different studios.  Also an assembly possibly isn't even required.  They're great for showing parts that move but are often not required.

    (b) Parts can be derived into other part studios, this is good but the feature tree does not come in with the derive.

    (c) Worth noting that you can have the assembly open in one browser tab and the part studio in another and they'll both update in real time as the other is edited.

    (d) There's also In Context Editing that allows parts to be built or modified from an assembly.


    Owen S.

    Production Engineer
    HWM-Water Ltd
  • philip_thomasphilip_thomas Member, Moderator, Onshape Employees, Developers Posts: 1,245
    ^^^^ Nicely done Owen! :)
    Philip Thomas - Onshape
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