Transparent filter part should be printed with transparent SBS. Main roof part is designed for usage with 3 mm light diode and Main 2 part has space for a battery. Some parts are pretty thin (like antennas and side wings) so I recommend to print the Citadel with line width 0.3 mm.Ĭitadel's base designed for usage with 10 mm wide LED strip. Sign x3 after any part's name means you need to print 3 copies of that part. This project contains 23 parts which are already oriented for the easiest printing with less supports. I thought so much of City 17 that I elected to establish my administration here, in the Citadel so thoughtfully provided by our benefactors.'Ī model of City 17 Citadel from Half Life 2 game. 'Welcome! Welcome to City 17! You have chosen, or been chosen, to relocate to one of our finest remaining urban centers.