From 67bc29299ae023578473eea43f0ea846be165940 Mon Sep 17 00:00:00 2001 From: enricoturri1966 Date: Thu, 26 Aug 2021 08:34:43 +0200 Subject: [PATCH] Fixed sinking object popping up on bed when adding a modifier --- src/libslic3r/Model.cpp | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/libslic3r/Model.cpp b/src/libslic3r/Model.cpp index e32285106..6654d3a13 100644 --- a/src/libslic3r/Model.cpp +++ b/src/libslic3r/Model.cpp @@ -959,8 +959,12 @@ void ModelObject::ensure_on_bed(bool allow_negative_z) double z_offset = 0.0; if (allow_negative_z) { - if (parts_count() == 1) - z_offset = -get_min_z(); + if (parts_count() == 1) { + const double min_z = get_min_z(); + const double max_z = get_max_z(); + if (min_z >= SINKING_Z_THRESHOLD || max_z < 0.0) + z_offset = -min_z; + } else { const double max_z = get_max_z(); if (max_z < SINKING_MIN_Z_THRESHOLD)