After the fail last week, another fail, but much closer to success. I made two molds, one with a gate from aside and no risers and the other with a central gate when pouring from top. The first one almost succeed, apart from two gaps, and the second one did barely fill. A few weeks ago I did the same in bronze which did fill. Probably the metal was cooled too much when I poured the second mold. An image is at 4:31 in the following video. https://www.metallab.net/jwplayer/video.php?v=L2NsaXBzL0lyb24gY2FzdCAyMDIxMDUyOS5tcDQ6Ojo2MDA= (mouse over the center top of the screen when you don't see anything).