Printed at full scale, no raft or supports. Printed the small parts separately and on a raft. Took another 4 hr, 13 minutes for those. Had no print problems, even with the long screw printed upright. Would love to see someone with more skill than me to remix this with a hyperbolic funnel, kinda like you see in the store for the kids to drop pennies in and watch them roll around for a long time. Other than that, it's a fun toy to watch and impress your friends with. Thanks for the file, Mroek, and thank you, Pinshape!