Simple pour-over coffee drip stand

I have a generic porcelain drip cone that doesn't fit Hario drip stands, but the base is too small to sit on top of a large coffee mug. I wanted something simple, but sturdy, so I took the opportunity to start learning how to work with polyhedrons in OpenSCAD to make some triangular braces. I may have made this thicker than it needs to be, but I wasn't sure how well my cheap PLA from Microcenter would stand up to daily exposure to heat and steam.