Star Trek Starfleet Academy Badges designed with multiple layers to make changing colors easier. Designed in Tinkercad and MS Publisher. Screen shots from Tinkercad. They are about 100mm (4") x 7mm or 8mm and have scaled well for me to 50%. for me at full size they take about 3 - 3 1/2 hours each to print on my Ender3pro using default settings in Cura. I've also done an United Federation of Planets logo badge which I will post seperately and a Christian fish TREK symbol that will also go up.