Just wondering if the following would be printable in stainless steel. The material thickness is 1.0mm. I could bump that up a little, if necessary. I have printed it in WSF and it is immensely strong ... unless you poke at an individual vertical member. Would Shapeways' minimum wall thickness checker automatically reject it? Or does a human assess it and see that it is obviously quite strong, i.e., the structure is really 8mm thick (the main thickness of the ring). This is just one sample; I would have other similar shapes. View attachment 15457
As far as I know stainless requires at least 1.5 mm and 3 mm is recommended. You just have to follow these rules.
If the vertical (in your image) parts have a minimum in-any-one-direction thickness of 1mm then it might print, but that would depend on the overall dimensions. i,e, a small item with 1mm walls is going to survive handling between printing & infusion better than a large item with 1mm walls. Stainless can be successfully printed quite thin if supported well.
I think this part could be all right. The structure is inherently strong. It will be a judgement call for the tech dudes when the file is reviewed. If it was my design I'd add .5mm overall thickness. The $$ difference should outweigh the potential no print stamp. -G