"Negative volume" adds positive volume in 2.8 - PrusaSlicer https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/ Prusa3D Forum Discussion Board en-US Fri, 12 Jun 2026 20:33:55 +0000 wpForo 60 RE: "Negative volume" adds positive volume in 2.8 https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716829 Sat, 20 Jul 2024 12:48:25 +0000 Where? I see one report of this in Issues, and that's the one I made :) nothing on the Release or main pages. 

]]> PrusaSlicer Jiří Fiala https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716829 RE: "Negative volume" adds positive volume in 2.8 https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716828 Sat, 20 Jul 2024 12:24:07 +0000 It’s a known issue with 2.8. Go check on the Prusa Slicer GitHub site. 

]]> PrusaSlicer Neophyl https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716828 RE: "Negative volume" adds positive volume in 2.8 https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716812 Sat, 20 Jul 2024 07:48:30 +0000 Both "Add Volume" and "Add Negative Volume" do the exact same thing with SVG.

]]> PrusaSlicer Jiří Fiala https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716812 "Negative volume" adds positive volume in 2.8 https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716809 Sat, 20 Jul 2024 07:26:46 +0000 I select the part, press "Add negative volume/SVG", select a SVG, that imports properly, but volume is still being added to the original object, not substracted from it.

 

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]]> PrusaSlicer Jiří Fiala https://forum.prusa3d.com/forum/prusaslicer/negative-volume-doesnt-work-in-2-8-0/#post-716809