Better surface quality

imants_smidchens · February 14

I'm doing some valentine's themed designs, and was wondering if anyone had suggestions for how to set up the surface with better curvature? Lofting results in these funky combs. I tried using boundary surface like 8 different ways but can't get it to work (probably a skill issue tbh).
Thoughts?
https://cad.onshape.com/documents/4584c90db7371f9e209c9d5f/

Image: https://us.v-cdn.net/5022071/uploads/editor/k9/p62038rh2lem.png

Image: https://us.v-cdn.net/5022071/uploads/editor/oo/ls585whrqfyt.png

MichaelPascoe · February 14

Try using guides with the loft or use Boundary surface if you are going for surface quality.

@S1mon

S1mon · February 14

It's a bit of a challenging shape because NURBS surfaces want to be 4-sided. You have things that are two sided, with those two sides being co-planar. The top and bottom are degenerate (those two edges collapse to single points). You've also made the tip and the crease dead sharp. Depending on what you really want, there are other ways to construct this, but it's going to take some more work. If I have some time later, I'll take a stab - so to speak.

GregBrown · February 14

What he ^^^ said

The patch structure is the issue. [Insert joke about degenerate hearts]

Here's a smoother version with minimal effort (while still being degenerate) https://cad.onshape.com/documents/cd4a3f30e61bb1e45de5f494/w/511df9b424476017285237fa/e/10fe2a308ebc7ad059f6fe04

S1mon · February 14

I played with this model for a while, but can't say that I'm super happy with it. I'd have to spend a bunch more time, and again, it really depends on what your goal is for this shape.

https://cad.onshape.com/documents/4f6be79548285aec88701c56/w/df567a17371d72de6f67d6d3/e/e444ad71bbc375f38a232203

Image: https://us.v-cdn.net/5022071/uploads/editor/l4/1uzrgtraeqqq.png

Evan_Reese · February 15

Here's a way to get a more rounded one

Image: https://us.v-cdn.net/5022071/uploads/editor/mh/709wzbtpet0d.png

Image: https://us.v-cdn.net/5022071/uploads/editor/cm/ok2soj4qty44.png

Ste_Wilson · February 16

Love it ❤️

Better surface quality

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