Some kind of jewelery thing I made, suggestions/feedback? https://www.shapeways.com/model/222912/invert_pendant.html
looks cool but it looks pretty thin... probably won't be able to be build. what material are you planning?
If you plan on ordering in stainless, 1) it has to be 3mm thick. and 2) all that unsupported geometry will probably make it unprintable. If you plan to wait for silver, the previous minimum thickness was .5mm but you would still have issues with the unsupported geometry I believe (they print in wax, then use that to cast the silver)
Unsupported geometry- what does that mean exactly? Does this would be unprintable even if I made each twist at least 3mm? Any recommendations?
What it means is, in stainless there is a green phase. Where the model is very fragile. They have to pack a support material around it to bake it. To pack around the swirls of the pendent would be difficult without breakage, and during the firing process they would most likely sag. I think it would be very difficult to get your intended result in stainless. I'm not as sure about silver, it may be more doable. But we'll have to wait to see the new guidelines when they are released.
More about stainless design rules can be found in the latest blog entry (also links to updated stainless design rules) https://www.shapeways.com/blog/archives/763-New-Stainless-Ste el-Design-Rules.html