This is a work in progress, but it's tested pretty nicely so far.This style is called a "flag" hinge in the Misumi catalog. I wanted a lot of hinges for several enclosures, and felt that $5 a piece adds up quickly.I have a panel hinge plate to put a panel to the surface of extrusions. I have not tested the panel part yet, but I have built a set. The panel flag is meant to allow flush use of 3mm thick and 5mm thick panels. There's a lot of interesting options, and a couple ideas I want to explore yet.I allowed for 5mm hardware, and gave room for a flat washer to distribute pressure. Build it right, and it's going to be an durable, yet smoothly operating part.I build with 3 perimeters, 0.5mm perimeters (with 0.4mm or smaller nozzle)Scale up the part in slicer to fit other sizes. If it's no good, I can make other sizes if needed. I only use 20mm series right now.Now including solid model files from Geomagic Design (Cubify Design), both formerly Alibre. Also available in STEP format.