I would love if someone uploaded an STL with cylinders all sized the various ring sizes that I could import, extract the cylinder I need, and size my digital model correctly. Something like https://www.shapeways.com/model/331805/ but in negative. That failing an STL of https://www.shapeways.com/model/331805/ would make me happy too.
From just two days ago, and still on the first page of the 'It Arrived' forum - https://www.shapeways.com/forum/index.php?t=msg&th=8484&a mp;start=0&