TheShaderMan

Thanks to you all for the suggestions "Print thin walls" does not help. "Spiralize outer walls" does help (but not in the case in picture) the modded version does pretty much the same as the vanilla one. Regarding "It is easier to take a solid cilinder and print with one wall (or two), no infill, top and bottom, or even better in vase-mode." Yes, for this particular example, but a need print like these It won't work. My only option is to widen the thin walls M.

Well, maybe, but It cannot be much simpler. It happens as soon as the wall thickness is close to the nozzle width (in this case 0.4) somewhere between one and two nozzle width (so 0.4-0.8mm) Basically, as the tube is a mesh, both inner and outter circles have 128 vertices. The distance between them is roughtly 0.45mm to ensure that 0.4mm is always there. It's a simple extrusion. Please find an exemple attached. test.stl

Hello, I'm trying to print a tube, rather thin, but i'm running into a weird slicing effect. It's a very simple model, just a tube, but the slicer is making weird ring effect, layers are not identical to one another. The print is rather ugly. looks like a defective printer... Any options I missed to make this random ring effect disappear ? Thanks