Hey I wanted to get some feedack from other 3D printer builders on using 3D printed brackets for structural support in a build. It seems to me like PLA is rigid enough that at a good thickness of 4mm or so it could work well for corner brackets in a large triangle shape on the corners of my 20mm frame, but I'm not too confident about it. Have any of you used printed brackets on your frames, if so what material and how did it work out for you? Thanks! Joseph