2nd Dynasty, (formerly Ultramyth Publishing) produces a range of 3D printable products for tabletop roleplaying and wargaming. The models are all designed to fit a standard 1" grid, although can be rescaled to 30mm, or another format easily with your print software. Our tiles exclusively use the OpenLOCK clip system available from Printable Scenery. The basic lock is available free from their website.