Perimeter print order is completely random
 
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Perimeter print order is completely random  

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ktpanda
(@ktpanda)
Active Member
Perimeter print order is completely random

I'm printing a piece with a colored inlay on the first layer, so there are a lot of individual pieces to print. Instead of starting at one end and moving to one nearby, it jumps around completely at random.

I've noticed that if I print multiple small objects in a grid, it does print them in a mostly logical order:

Why can't it use the same logic when choosing the order to print perimeters within an object?

Posted : 15/07/2024 4:08 am
pseudo
(@pseudo)
Member
RE: Perimeter print order is completely random

Yeah this is really messing up a part where I've got a lattice grid inside, and trying to play with retraction settings to reduce the artifacts of stringing and oozing is confounded by the crazy order it jumps through the lattice perimeters. Is there any way to make it do something more sane like a Hilbert Curve style walk or something? Yeah technically this is the Traveling Salesmen Problem, but a heuristic of finding the grid size that uniquely captures each grid point, fitting a Hilbert Curve to that grid, then simplifying, would be fast and effective

Posted : 21/07/2024 5:26 pm
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