diff --git a/lib/Slic3r/GUI/3DScene.pm b/lib/Slic3r/GUI/3DScene.pm
index c7b796146..fecfc014f 100644
--- a/lib/Slic3r/GUI/3DScene.pm
+++ b/lib/Slic3r/GUI/3DScene.pm
@@ -909,8 +909,8 @@ sub Render {
         glDisable(GL_DEPTH_TEST);
         my $origin = $self->origin;
         my $axis_len = max(
-            0.3 * max(@{ $self->bed_bounding_box->size }),
-              2 * max(@{ $volumes_bb->size }),
+            max(@{ $self->bed_bounding_box->size }),
+            1.2 * max(@{ $volumes_bb->size }),
         );
         glLineWidth(2);
         glBegin(GL_LINES);