From 903c6c22bcadf5e893287e8c7e8ebc5b9c872b19 Mon Sep 17 00:00:00 2001
From: supermerill <merill@free.fr>
Date: Tue, 8 Dec 2020 02:29:00 +0100
Subject: [PATCH] #758 safeguards when brim_width < brim_offset

---
 src/libslic3r/Print.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/Print.cpp b/src/libslic3r/Print.cpp
index 1820ccfd2..1df211a2d 100644
--- a/src/libslic3r/Print.cpp
+++ b/src/libslic3r/Print.cpp
@@ -2216,7 +2216,7 @@ void Print::_make_brim(const Flow &flow, const PrintObjectPtrs &objects, ExPolyg
     unbrimmable_areas = islands;
 
     //get the brimmable area
-    const size_t num_loops = size_t(floor((brim_config.brim_width.value - brim_config.brim_offset.value) / flow.spacing()));
+    const size_t num_loops = size_t(floor(std::max(0.,(brim_config.brim_width.value - brim_config.brim_offset.value)) / flow.spacing()));
     ExPolygons brimmable_areas;
     for (ExPolygon &expoly : islands) {
         for (Polygon poly : offset(expoly.contour, num_loops * flow.scaled_spacing(), jtSquare)) {