Help with Overlapping Polysurface and SubD Advice

Help with Overlapping Polysurface and SubD Advice

I'm creating this starfish design for a client by creating an outer outline curve and an inner circle curve. I used sweep 2 to sweep several sweep shapes along the two rails.

https://preview.redd.it/86fo4jpys1th1.png?width=1216&format=png&auto=webp&s=c6a8193e4e48f21fa54050a32944c44012b7ffc5

I've gotten pretty close to what I want using this method.

https://preview.redd.it/u3um44v1t1th1.png?width=1211&format=png&auto=webp&s=9711641a1dc2de3bcfa5d5abeddd2dbad769d170

But the polysurface wraps in on itself in a couple places. Especially near the beginning with the first sweep curve at 11 o'clock ending so close to the second sweep curve on the inner rail.

https://preview.redd.it/9n3tkoiat1th1.png?width=1201&format=png&auto=webp&s=13680504c46b74f16b32e49b76962aa4151808b0

I found this tool in Rhino tutorials called Move UVN where you can unwrap surfaces, but you need to be able to see the surface's points with _pointson. However, _pointson doesn't work with a polysurface, so I can't seem to apply the Move UVN tool to this object.

Does anyone have any suggestions on how I can fix this overlapping issue in my polysurface?

I feel like a lot of people will tell me to approach this design using SubD. I've looked at a few tutorials, but now sure where to start. Should I being by extruding the outline of the design and start shaping from there? I seem to get a lot of segments when I do that. Or should I use primitive objects and build it piece by piece?

u/apoh1698 — 13 days ago
▲ 2 r/jewelryCAD+1 crossposts

Trying to recreate this pavé ring shape in Rhino/Matrix — need help with the taper

Reference Image

I'm creating a pavé ring set with blue sapphires for a client. She sent me the attached reference image (Image 1) for the general shape she wants. I'm building it in Matrix (jewelry-specific software that runs on top of Rhino) and having trouble nailing the taper.

Version 1

In my first attempt, I used Sweep1 with 5 profiles: 0.4mm wide/high profiles at the very ends of the rail, 2.5mm wide x 2mm high profiles placed about 2% in from each end, and one 2.5mm wide x 2mm high profile at the halfway point. This gives me a weird bulge where the larger profiles sit near the ends, and the tips end awkwardly instead of tapering to a smooth point.

Version 2

In version 2, I simplified to just 3 profiles. It looks better than Attempt 1, but it doesn't match the reference — my version tapers gradually across most of the ring's length, while the reference stays close to full width for most of its length and only narrows quickly right at the tips.

Profile I am using

Any suggestions on how I can create the same shape as the reference image? A ring that maintains the same width throughout most of the ring but then rounds off quickly at the ends?

reddit.com
u/apoh1698 — 3 months ago

Is this mold or an infestation?

I was soaking my orchids today and noticed this on the roots of one of my orchids. It's also on some of the roots inside the slotted plastic container. Are these normal "root hairs" or is this fungus or some sort of pest?

I usually soak the orchids for 10min when the moss has dried halfway down the pot or all the way down the pot. It's in a room that gets a lot of bright indirect sunlight. It's across the room from a corner window that faces West. I'm based in NYC.

u/apoh1698 — 3 months ago

Feedback on Product Photos

Would love any feedback you might have on these product photos of my jewelry!

My Setup:

Camera: Canon DSLR with a macro lens.

Lighting: A DIY lightbox (cardboard box spray-painted white inside, topped with wax paper for diffusion) and an LED panel light directly above.

Post-Processing: Edited in Lightroom.

The challenges I'm running into:

Dark Reflections: I’m getting large black spots/reflections from the dark opening of the lightbox on super high-polished surfaces.

Lost Edges: I struggle to get clear definition on some pieces because the highlights on the edges blend right into the white background.

Any tips on how to fix these lighting/reflection issues would be amazing!

u/apoh1698 — 4 months ago

Is She Ready for Soil?

Are these roots developed enough for me to pot this begonia?

u/apoh1698 — 4 months ago