How do I model a "Jelly" Sandal Shoe? (Criss-Cross Sandal Pattern)

Rhino
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1

Hi, new to Rhino but longtime parametric user (Fusion360).

I have a goal to model a Jelly Shoe in Rhino:

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I have a sandal shoe last that i’ve converted to SubD:

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I am sorta scratching my head on where to go from here.

Any relevant tutorials or descriptions of the approach you’d take would be helpful!

2

This looks like a grasshopper thing

Or subd inset command

3

If this was my project, careful projection of curves to insure they are coincident and multipipe would be where I’d start.

this does feel like a good candidate for a Gh definition for those with the skills.

4

Thanks Kyle & CADARTZ,

Below is where I’m at so far! Any critiques, approvals, or “instead I’d”s are appreciated!!!

I ended up going the GH route. But first in Rhino I fit CP curves in XYZ for the straps (stared with 2 straps only):

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Then, in GH:

  1. I divided strap curves by a number of points and projected them to the SubD last using Mesh Closest Point
  2. Generated a curve from the projected points and smoothed with Interpolate and Rebuild Curve
  3. Thickened using Pipe with round caps
  4. Trimmed intersections against the sole using Solid Difference to create a semi-circle strap cross section
  5. Fused the trimmed straps and sole via Solid Union with a live SubD→Brep conversion

Next I plan to finish all the straps and run through the same GH workflow.

Afterthought- In a perfect world I’d love to use an ellipse as the cross section shape, but I’m unsure how I’d ensure the ellipse orientation follows the flow of the last surface along the curve.

Thanks,

5

looks great to me, the only thought would be if your curves are end clean and connected segments, or overlap perfectly, multi pipe will make the intersections for you instead of having to boolean later.

see below-

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