![]() ![]() Rear works similarly to Aligned, but it will try to position the seam close to max Y (rear of the print bed). On the other hand, when printing cylindrical shapes without any sharp edges, Random seam position is a viable option. It makes little sense to use Random seam position on models with corners/sharp edges, it's much better to use Nearest or Aligned in such cases. This will choose a different point for each layer, making the seam less noticeable at the cost of a less smooth surface (small zits scattered across the surface). ![]() Random (left) vs Aligned (right) seam position Random This will ensure the seam is mostly aligned throughout the whole object. This will use the same logic as the Nearest for finding the candidates, but it will choose the one that is nearest to the start point of the previous layer. So this option will optimize for short travels. ![]() The choice among the candidates is operated so that the start point is the nearest to the previous extruder position. If none are available, it will choose a non-overhang vertex. If no concave non-overhang vertices are available, it will choose a convex non-overhang vertex. To be precise, this will try to choose a concave non-overhang vertex so that the seam is hidden inside of the concave angle. If your model has sharp corners, this will make the seam effectively invisible. Nearest (edge)Īttempts to place the seam on the nearest edge of the current layer. Starting with PrusaSlicer 2.3, you can use the Seam painting tool to have detailed control over the seam placement. ![]()
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