/diy/ - Do It Yourself

>>2595862
Layers will always snap faster, the world for it is layer adhesion.
In really simple terms when you print with polymers, you essentially printing with long strings of molecules. When cooling, these long strings start to jumble together, giving strength to the plastic, but the previous layer you printed is already somewhat cooled down, so the next layer's "strings" wont connect that well to that layer. Many factors can improve layer adhesion, like higher printing temps, less cooling, slower printing and so on.
Picrel is a somewhat retarded illustration of this.
Usually with functional parts, you try to orient the print in a way that the forces on said part never go against the layers.