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Recreating the linked ring in OnShape

charlie_kingslandcharlie_kingsland Member Posts: 10 EDU
Just wondering if it is possible to recreate this ring (https://www.thingiverse.com/thing:711970) in OnShape? I know how to get the basic ring shape, just not the low-poly texture/pattern… Any help appreciated!
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Best Answer

  • BenTaylorBenTaylor Member Posts: 41 PRO
    edited August 2021 Answer ✓
    Here are my attempts: https://cad.onshape.com/documents/6d25c7d234b2a3791d2fb4e5/w/d272849b5d0725527f2bafc4/e/ac6c7485ceeb4fbe02236fee

    The "Convex Poly" part studio has the simplest feature tree with all the planes and points, and then the "Convex Polyhedron" custom feature that @MichaelPascoe mentioned above. This is computationally heavy, though - that one feature takes ~14 seconds to regenerate. 

    The linked ring you are looking at is fairly simple to construct geometrically. It has the same 3 faces mirrored, rotated, and patterned all around the ring. I constructed that in the "Manual Surfaces" part studio. I parametrically defined the edges, then lofted between the edges and points to create a surface. Then I just mirrored, transformed, and patterned it so it creates the geometry you want. It's a bit more work to figure out how to build it and what to pattern, but is computationally much better - only ~0.13 seconds for the whole feature tree.
    Ben Taylor
    Lead Mechanical Engineer @ Healing Innovations
    Onshape Ambassador

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