Add 2D honeycomb infill pattern#9483
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Noisyfox merged 3 commits intoOrcaSlicer:mainfrom Jun 18, 2025
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commit 1003532 Merge: 92e2494 fe4a72e Author: pi-squared-studio <[email protected]> Date: Thu Jun 19 00:04:45 2025 +0300 Merge branch 'main' of https://github.com/pi-squared-studio/OrcaSlicer commit fe4a72e Author: Noisyfox <[email protected]> Date: Wed Jun 18 17:50:44 2025 +0800 Upgrade clipper & improve multi-thread performance (OrcaSlicer#7177) * Clipper: Verify range of int32 coordinates on input. Cherry-picked from prusa3d/PrusaSlicer@fa7debf Co-authored-by: Vojtech Bubnik <[email protected]> * ClipperLib: Optimized PointInPolygon() to calculate cross products with int64s instead of doubles. Cherry-picked from prusa3d/PrusaSlicer@9dca840 Co-authored-by: Vojtech Bubnik <[email protected]> * Reworked the ClipperLib / Polygon types to use the tbb::scallable_allocator to better scale on multiple threads. Cherry-picked from prusa3d/PrusaSlicer@9cde969 Co-authored-by: Vojtech Bubnik <[email protected]> * use tbb::scallable_allocator for Polygons and ExPolygon::holes to better scale on multiple threads Cherry-picked from prusa3d/PrusaSlicer@b67ad64 Co-authored-by: Vojtech Bubnik <[email protected]> * Fixed compilation on GCC and CLang Cherry-picked from prusa3d/PrusaSlicer@b3b4468 Co-authored-by: Vojtech Bubnik <[email protected]> * Remove clipper2 which is not used * Removed shiny profiler from clipperlib Cherry-picked from prusa3d/PrusaSlicer@7e77048 Co-authored-by: Vojtech Bubnik <[email protected]> * ClipperLib: Further optimization of memory allocation using scalable_allocator. ClipperLib: SimplifyPolygon() - changed default winding number to positive, added strictly_simple parameter. ClipperUtlis simplify_polygons() - removed "remove_collinear" parameter Cherry-picked from prusa3d/PrusaSlicer@a7e17df Co-authored-by: Vojtech Bubnik <[email protected]> * ClipperLib: emplace_back() instead of push_back(). Cherry-picked from prusa3d/PrusaSlicer@2e15079 Co-authored-by: Vojtech Bubnik <[email protected]> * Fixed issue in a 32bit clipper, where IntersectPoint() checked for the Y coordinate of the calculated intersection point for validity, but the Y coordinate was already rounded to 32bits, thus an overflow may have in rare cases masked invalidity of the result. Cherry-picked from prusa3d/PrusaSlicer@b39c334 Co-authored-by: Vojtech Bubnik <[email protected]> * Fixed Vojtech's out of boundary assert in Clipper library. Cherry-picked from prusa3d/PrusaSlicer@0a202dc Co-authored-by: Vojtech Bubnik <[email protected]> * Update clipper to 6.4.2. Cherry-picked from prusa3d/PrusaSlicer@b8b3ccc Co-authored-by: Lukáš Hejl <[email protected]> * Try fix cmake opencv --------- Co-authored-by: Vojtech Bubnik <[email protected]> Co-authored-by: Lukáš Hejl <[email protected]> commit 95b4334 Author: GlauTech <[email protected]> Date: Wed Jun 18 04:04:55 2025 +0300 Valmet filament pla derivative filaments have been added. (OrcaSlicer#9913) Valmet filament pla derivative filaments have been added. commit 0010dc6 Author: Henk <[email protected]> Date: Wed Jun 18 02:48:48 2025 +0200 Add 2D honeycomb infill pattern (OrcaSlicer#9483) * Add 2D honeycomb infill pattern * Reverted change of 2D lattice infill void area estimation --------- Co-authored-by: Noisyfox <[email protected]> commit 92e2494 Merge: 920b945 8a7f227 Author: pi-squared-studio <[email protected]> Date: Thu Jun 12 21:07:55 2025 +0300 Merge branch 'Rotating_Infill' commit 920b945 Author: pi-squared-studio <[email protected]> Date: Wed Jun 11 00:33:27 2025 +0300 Feature: Fuzzy Skin Extrusion Mode This extension allows you to add new features to the fuzzy skin generator.
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Description
Like 2D lattice, this infill pattern is primarily intended for aircraft wings. Infill in wings keeps the thin skin from bending under aerodynamic loads, similar to ribs and stringers in classic wing structures. Secondary it keeps the skin from oil canning while printing. The spacing of the infill along the skin needs to be sufficiently low enough. 2D lines (aligned rectilinear) at the required spacing would be the lightest option. It does however not provide torsional stiffness (top and bottom layers will provide some stiffness but do not keep the skin from buckling under torsional load). For torsional stiffness closed cells are needed to create a torsion box. 2D lattice does provide the required stiffness, but 2D honeycomb should give the same results at 33% lower weight. In practice the infill lines need to be wider due to the 60 degrees overhang in a pure honeycomb. Therefore a infill overhang angle parameter was added that stretches the pattern vertically. At lower overhang angles the pattern keeps its weight advantage. 2D honeycomb has some disadvantages too. Its density is not evenly distributed vertically. The pattern can not be subdivided by itself which results in infill line disconnects when density is increased locally using modifiers.
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