I realize this may be a long shot, but are there any transparent materials suitable for outdoor use? 3D Hubs seems to think all of them will have problems when subjected to UV light. Looking to make some lenses with built-in "corner cube" retroreflectors. Something like this:   Any materials out there that will do the trick?   Test STL on Thingiverse:http://www.thingiverse.com/thing:1752005/
I would like to print highly transparent parts using Kudo3D Titian2 HR using its highest resolution setting (XY resolution 23um, layer height 5 um). But the recommended clear resin on Kudo3D official website is the Autodesk Clear, which is compatible with only 100um XY resolution. Could anyone recommend some transparent resin which is compatible with high resolution settings of XY 23 um? Thanks!