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Drawing assemblies with motion in different states

iain_downsiain_downs Member Posts: 20
Hi.  I have a steam engine I'm modelling and I want to make a drawing with the crank at top dead centre and at bottom dead centre.

I've found that if I rotate the crank in the assembly and then refresh the drawing, I get the new orientation.

What I'd like to be able to do is to have a drawing with both states in (or two separate drawings, but which don't change when I change the assembly).

I suspect that assembly configurations can help, but I can't see how to set the rotation and if I could I can't see how to specify a configuration in the drawing

Thanks

Iain

Comments

  • owen_sparksowen_sparks Member, Developers Posts: 2,225 PRO
    edited May 9
    I believe you're after "Named Positions"  So in your assembly you'd create one named position for TDC and another for BDC.  Then in the drawing you'd chose which position to insert.  (The named bits I'm sure on, the drawings method is a presumption on my part.)
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    Cheers, Owen S.
    Production Engineer
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  • john_mcclaryjohn_mcclary Member, Developers Posts: 1,760 PRO
    You are right, that is a job for configurations.

    You will start by creating a new config on the right fly out.

    Then you can either create new mates, then configure suppression of the new and old mates.

    Or you can right click anything in the mate and configure each piece independantly

    Here I'm configuring the rotation  by right clicking the rotate button, then choosing which config I want to control it.


    Once you have your mates added to the configuration list.
    You can switch to the new configuration and make the adjustments you need.
    In this case I would switch to the "Ship" configuration and edit Fastened 4, then click the rotate button until I get the result, then click the green check and  you are done.

    Now in Drawings, you will choose your configuration while inserting. (Same as inserting into an assembly)
    Or if your view is already on paper, you can right click the view and "Change Configuration"

  • brucebartlettbrucebartlett Member, OS Professional, Mentor Posts: 1,834 PRO
    edited May 10
    Just be aware when changing the configuration as @john_mcclary describes, this changes all the views on the drawing but to get an alternate assembly position on some views you have to insert a new view from the insert dialogue and select the alternative configuration here.
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  • john_mcclaryjohn_mcclary Member, Developers Posts: 1,760 PRO
    Yes, good point @brucebartlett
    That does change every view in the series (Child/Parent)
    Creating a new view with insert decouples configuration states :)
  • PeteYodisPeteYodis Moderator, Onshape Employees Posts: 287
    Yes, we only change one Parent/Child set of dependent views.  We don't change them all.  You can certainly change each set if you want them to all be the same.  Totally your choice.  We wanted to permit some freedom here.  
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