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Patterns along a series of surfaces

iain_downsiain_downs Member Posts: 42 ✭✭

I'm trying to model a bin with a fancy pattern on the outside. I start with a rounded rectangle end extrude that upwards. I think create a fancy part on one of the flat surfaces and extrude it. Then I'm stuck.

The closest I get is with the Curve Pattern, but that fails to wrap the fancy part around the curve of the rounded corners. It will continue to apparently put the fancy pattern on the other flat surfaces, but all is now red, so I'm only assuming this is 'working'. How should I do this?

Thanks

Iain

Answers

  • iain_downsiain_downs Member Posts: 42 ✭✭
    Bin Wrap.jpg

    As a picture paints …

    Iain

  • Matt_ShieldsMatt_Shields Member, Onshape Employees Posts: 762 PRO
    edited October 7

    If you pattern the sketch, you might be able to pull it off with a combo of splits and wraps.

    image.png
  • iain_downsiain_downs Member Posts: 42 ✭✭

    Thanks, Matt.

    I see from the image what you are driving towards, but I'm not clear on how you're getting there. I can get the wrap to wrap round the curved part. Presumably the two wraps do that, but I don't get how the elements on the flat surface get there.

    Hope you can help

    Iain

  • Matt_ShieldsMatt_Shields Member, Onshape Employees Posts: 762 PRO

    Ah, the Wraps were for the curved surfaces. I used a Split for the flat surface.

  • EvanReeseEvanReese Member, Mentor Posts: 2,590 PRO

    This is where I'd use the sheet metal tools to create some geometry to work with and go from there. This example isn't a perfect match, but in your case your sheet metal will probably end up being a tool body you cut with instead of something you add. I think the concept still works.

    Oct-07-2025 16-25-11.gif
    Evan Reese
    The Onsherpa | Reach peak Onshape productivity
    www.theonsherpa.com
  • iain_downsiain_downs Member Posts: 42 ✭✭

    Thank you both. I succeeded in getting both approaches to work to some extent or another. I found I didn't need the split in Matt's approach and although the piercings for the sheet metal 'worked', I couldn't see any way to have them as insets rather than piercings.

    In the end I went for a change of design, skipping the decoration on the rounded corners and it looked like this:-

    image.png

    It's meant to have a more or less art deco feel, but we shall see how well that works when it's printed.

    Iain

  • jelte_steur814jelte_steur814 Member Posts: 527 PRO
    edited October 10

    Here's a working example (I think this is what you were trying to achieve):

    a few tricks I used:
    The extrude is up to an offset face that is a separate surface entity so it can be selected in the first extrude, and the selection will propagate as it goes to a next face, because it's looking for the surface.

    Reapply features enabled

    used a split edge to make sure the start of the curve along which to pattern is centrally located above the first instance. that's where the tangent direction for the pattern is defined from, and causes the deco instances in the round corners to have more or less the proper extrude direction.

    image.png
  • EvanReeseEvanReese Member, Mentor Posts: 2,590 PRO

    @jelte_steur814 great solution!

    Evan Reese
    The Onsherpa | Reach peak Onshape productivity
    www.theonsherpa.com
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