Tree Ring Coasters - Set of 4 Log Slices

Four log-slice coasters, each grown from its own seed so no two match: off-centre pith, wandering growth rings with wide and narrow years, drying cracks from the bark, and a rough bark rim. Two simple filament swaps (4.6 mm and 5.6 mm) give dark ring lines, light wood and dark bark on any single-colour printer. About 100 mm, 7 mm tall, no supports, pad recesses underneath. Includes 4 STLs, renders and README. By Black (BlackSpectre). More designs: patreon.com/123black