Author: ssa3512, published on 2013-11-21
My apartment complex has no outgoing mailboxes, so I made this to stick on the outside of my mailbox. Two 12mm diameter magnets go in the holes in the flag, and two are stuck to the inside of the mailbox with glue dots from the craft store. When I have outgoing mail, I just slap the flag on the box.
Made with FreeCAD. Printed at 0.2mm, two 12mm rare earth magnets superglued into the spots in the back