From a7db378b8ae271447f802216dc2faf40c472ba5e Mon Sep 17 00:00:00 2001
From: Joseph Lenox <lenox.joseph@gmail.com>
Date: Mon, 7 May 2018 22:16:20 -0500
Subject: [PATCH] Remember to clean up old grid array before filling it up
 again.

---
 src/GUI/Plater/Plate2D.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/GUI/Plater/Plate2D.cpp b/src/GUI/Plater/Plate2D.cpp
index 1ec395db9..194aaa467 100644
--- a/src/GUI/Plater/Plate2D.cpp
+++ b/src/GUI/Plater/Plate2D.cpp
@@ -258,6 +258,7 @@ void Plate2D::update_bed_size() {
     const auto& center = bb.center();
     this->print_center = wxPoint(unscale(center.x), unscale(center.y));
 
+    this->grid.clear(); // clear out the old grid 
     // Cache bed contours and grid
     {
         const auto& step { scale_(10.0) }; // want a 10mm step for the lines