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How to create a mate connector 'in the air'?

Henk_de_VHenk_de_V Member, Developers Posts: 122 ✭✭✭
In an assy a part with a fillet is inserted. In that assy I like to use/create a Mate Connector that is on the (virtual) edge that was used to create the fillet.
Of course I can move the MC along one of the red arrows but then its position depends on the fillet radius, which is undesirable for the design intent.

How do I create/get that MC 'in the air' without using Move?




Henk de Vlaam (NL)
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Best Answers

  • Jake_RosenfeldJake_Rosenfeld Posts: 1,252
    Accepted Answer
    @Henk_de_V

    This is an interesting workflow.  I have a couple ideas.  First, if possible, You could make the mate connector before filleting, and then do the fillet.  Since a blend like this does not always come from a fillet operation, or maybe it is more desirable to do the mate connectors all the way at the end, the way I would do this is as follows:

    1. Make a plane that cuts through the blended edge
    2. Start a sketch on that plane
    3. Use the intersection tool to get an intersection of both faces onto the sketch
    4. Put down a point
    5. Add two coincident constraints to the point, one for each intersection line
    6. The vertex should now be fully constrained, and in the location of the virtual sharp.  You can use it for modeling, or add a mate connector onto it.
    Hopefully this helps, but maybe if you do this often it is too many steps to do this every time.  If so , it's a pretty easy custom feature to write, and me or someone else may want to try their hand at it.
    Jake Rosenfeld - Modeling Team

Answers

  • Jake_RosenfeldJake_Rosenfeld Moderator, Onshape Employees, Developers Posts: 1,252
    Accepted Answer
    @Henk_de_V

    This is an interesting workflow.  I have a couple ideas.  First, if possible, You could make the mate connector before filleting, and then do the fillet.  Since a blend like this does not always come from a fillet operation, or maybe it is more desirable to do the mate connectors all the way at the end, the way I would do this is as follows:

    1. Make a plane that cuts through the blended edge
    2. Start a sketch on that plane
    3. Use the intersection tool to get an intersection of both faces onto the sketch
    4. Put down a point
    5. Add two coincident constraints to the point, one for each intersection line
    6. The vertex should now be fully constrained, and in the location of the virtual sharp.  You can use it for modeling, or add a mate connector onto it.
    Hopefully this helps, but maybe if you do this often it is too many steps to do this every time.  If so , it's a pretty easy custom feature to write, and me or someone else may want to try their hand at it.
    Jake Rosenfeld - Modeling Team
  • Henk_de_VHenk_de_V Member, Developers Posts: 122 ✭✭✭
    Hi @Jake_Rosenfeld,

    Henk_de_V said:
    [...] In that assy I like to use/create a Mate Connector that is on the (virtual) edge that was used to create the fillet.
    Of course I can move the MC along one of the red arrows but then its position depends on the fillet radius, which is undesirable for the design intent. [...]


    So, the question was to select/create a MC in the ASSY. May be that was not clear enough.
    @Henk_de_V

    [...] First, if possible, You could make the mate connector before filleting, and then do the fillet.  [...]
    I am aware of making an independent MC in the Part Studio like you describe over here. That was the way I made the MC that you see in the picture. However, I don't rather like to pollute the part studio. 
    But, I think I can conclude that there is no way to use/create an Assy-MC in this case. Right?

    For the rest, thank you for your extensive answer. The alternative way in case of "non fillet blend" is very useful.
    Henk de Vlaam (NL)
  • romeo_graham392romeo_graham392 Member Posts: 147 PRO
    @Henk_de_V
    One other thought (that still doesn't get to your original request, but is another workflow to consider).

    Make a reference sketch in the Part Studio (use the edge that will be wiped out by the fillet for reference). 
    Then Instance the SKETCH in the assembly. That will give you some geometry (the sketch line or point) to attach the Mate Connector to in the assembly.

    You can hide the reference sketch in the Part Studio, so it won't be too messy, but it will conserve design intent in the Assembly.
  • Henk_de_VHenk_de_V Member, Developers Posts: 122 ✭✭✭
    Henk de Vlaam (NL)
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