Hi all, I have done a model called Ring'n'Roll, basically two nested rings that can roll one inside the other, and I was wondering how to position the 2 moving parts in the stl file before printing. Actually, for the initial model the regular Ring'nRoll I turned the internal ring of 90Â°. My goal was to minimized the area of contact between the two rings, to avoid they get fused (the thickness is 2 mm and the clearance 0.75). I already ordered it in Alumide in this position. But I am now wondring if, depending on the printing direction, there could not be a deformation that could occur differently on each ring, and prevent them from moving freely. So for my next model (not ordered yet), the Ring'n'Roll with Holes I decided to keep the 2 rings lying flat on the horizontal surface. See the automatically generated thumbnails on these models, or this rendering: The first one is "flat" the second one "turned at 90Â°". What is you opinion or experience on this topic?