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Infill issue with schish walls/battlements

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    • #231088
      AvatarNicholas Strugnell
      Participant

      Hi –

      I’m printing Clorehaven stuff on my Prusa i3 Mk3S and I’m loving it – absolutely brilliant.

      However, I’ve noticed that the slicer (PrusaSlicer) treats every course of stone blocks almost as a separate object, which means that I get several layers of solid infill at each course boundary, and a lot less internal infill in a wall than e.g. in a tile. This obviously consumes a lot more filament, and more importantly, significantly adds to print time.

      I’ve attached a screenshot which hopefully shows what I mean.

      Does anyone have PrusaSlicer settings that avoid this? I’m using the default ‘0.20mm Speed’ settings, with the Infill reduced to 10%.

      Any suggestions welcome!

      Nick

    • #231090
      AvatarNicholas Strugnell
      Participant

      Hmm, answering my own thread I tried slicing in Cura and it produced much cleaner (and hopefully faster) output. Interesting, I wonder if there are some settings in PrusaSlicer that I am missing?

      Nick

    • #231147
      Sam CampbellSam Campbell
      Keymaster

      You can adjust this with Horizontal Shells settings in Prusa Slicer, this is the slicer smarts for printing floors and ceiling horizontal shells. It’s because the brick details are quite deep it’s treating a lot of layers like they have overly large horizontal shells (Ie. could be top or bottom and therefore laying a majority horizontal shell layer). You can adjust the number of top and bottom layers down.

    • #231730
      AvatarNicholas Strugnell
      Participant

      Just to follow up on this, I decided to go with the Cura gcodes in the end as even dropping the horizontal shells in Prusaslicer it still generated loads of internal ceilings. The Cura gcodes are using about the half the amount of material (with a concomitant decrease in print time).

    • #233945
      Avatardehmlowm
      Participant

      This is certainly an issue, printing one BA-L-Buttress-Schist-Battlement-w-Crenellation-v1.0.stl at .02mm-5% infill takes 6 hours! Are these models designed to be 3d printed?

      • #234102
        AvatarNicholas Jebson
        Keymaster

        @dehmlowm yeah sometimes Prussa slicer is too smart for its own good XD. As Sam stated previously if you go through and adjust your horizontal shell settings your going to have a much faster print time.

    • #233960
      AvatarNicholas Strugnell
      Participant

      Hi Dehmlowm –

      The problem is not with the models it is with PrusaSlicer. For some reason it creates a partial internal ceiling for every row of blocks – where the line of mortar would be between the rows in a real wall.

      Cura does not do this and produces much faster prints. Also, I recommend that you print with a brim, particularly the very narrow/tall pieces. As you can see from the attachment there is no extraneous infill or ceiling.

      Regards,
      Nick

    • #237232

      Hello, I have the PrusaSlicer settings you need, I was asked just yesterday;
      Still need it?

      Rachat de crédit et trésorerie

    • #237237
      AvatarNicholas Jebson
      Keymaster

      Great! thanks Jean

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