Hi, this is my first post on the forum. I have been working on a library that implements basic support for layers, keepouts, etc. It's not ready for public release yet but it works pretty well for my own purposes. Question #1) Is anyone aware of other libraries that implement keepouts, layering, and built-in support for multi-material STL layering? Question #2) Is anyone interested in messingby pipe2null - OpenSCAD