dario33

Honestly, I have tried all sorts of thicknesses, different vertex merges, I've been sat at this all day and I can't figure it out. The closest I can get is this: But I need filament to be where I have scribbled in red, and I just cannot figure it out 😞

Hi guys, I cannot for the life of me figure this out, and I'm ripping my hair out. If you could please help me out here that would be greatly appreciated. I have this model of a cylinder, that has holes in it and cone-like structures in the middle, everything is fine when I want to print it out like this: But, when I add another cylinder on the outside to serve as a sort of shell, and connect them up, this happens: and then none of the inside actually prints out. Could anyone please explain to me why this is happening? I'm attaching the STL. Thank you in advance for any help. cylinder.stl