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Convenient tool / method for creating "tabs" (NOT sheet metal)

tom_augertom_auger Member Posts: 33
edited February 11 in Community Support

This part is meant to be screwed into a wall so I need some "wings" or "flaps" to extend outward (from the highlighted edge).

The naive way would be just to create a new drawing on the face, [u]se the bottom edge, and then extrude and thicken it. Then repeat that whole process for the opposite side, or mirror the resulting part. I'd love to do this without having to create a drawing just so I can extrude an edge that is already defined in some other geometry. Is there such another clever way of accomplishing this?


  • bruce_williamsbruce_williams Member, Developers Posts: 419 PRO
    Onshape lets you reuse sketch so you can have the tab shapes on your original sketch and Extrude Symmetric or Up to face with offset and the other end with Second end position.
  • john_mcclaryjohn_mcclary Member, Developers Posts: 2,378 PRO
    edited February 11
    The only thing naive about your approach is creating a sketch, then surface, just to thicken...

    If you are making a solid, just stick to solid modeling techniques until they "can't" do what you need.

    That being said:
    select the face
    create a sketch (shift+s) 
    draw a rectangle (g)
    click one corner of the box
    click the opposite edge
    set a dim
    extrude (new) -> set length
    Mirror (Part) -> (Add)

    Or you could sketch on the Front face of the part (the long face in my example) and draw two squares and make them equal length on each end.

    There is absolutely nothing wrong with either approach. It seems like a lot of steps but, sketch/extrude is the bread and butter of solid modeling. It just becomes quicker with practice.

    For solid modeling, only use surfaces if they shape is "funky"... or you need some sort of re-usable geometry to reference many features.

    edit: forgot to attach the gif...

  • steve_shubinsteve_shubin Member Posts: 149 ✭✭✭
    edited February 12

    YOU SAID — I'd love to do this without having to create a drawing just so I can extrude an edge that is already defined in some other geometry.

    OK I’m assuming when you said without creating a drawing, that you actually meant - without creating a sketch.

    You can create a flange by extruding an edge with thickness, using something called Thin-feature.


  • steve_shubinsteve_shubin Member Posts: 149 ✭✭✭

    YOU SAID — Is there such another clever way of accomplishing this ?

    Here’s a way that’s more than twice as fast as using the Thin-feature extrude method

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