From 3923b0212c8a32bb9d878746ab1be10a50d41fa4 Mon Sep 17 00:00:00 2001
From: Lars Brubaker <larsbrubaker@gmail.com>
Date: Fri, 1 Feb 2019 11:35:56 -0800
Subject: [PATCH] Fixed support from bed

issue: MatterHackers/MCCentral#4977
Cannot generate support from bed for this model
---
 MatterControlLib/DesignTools/SupportGenerator.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MatterControlLib/DesignTools/SupportGenerator.cs b/MatterControlLib/DesignTools/SupportGenerator.cs
index 7f9b2b16b..7d6506edc 100644
--- a/MatterControlLib/DesignTools/SupportGenerator.cs
+++ b/MatterControlLib/DesignTools/SupportGenerator.cs
@@ -308,7 +308,8 @@ namespace MatterHackers.MatterControl.DesignTools
 				if (fromBed)
 				{
 					i = GetNextBottom(i, kvp.Value);
-					if (kvp.Value[i].bottom)
+					if (i < kvp.Value.Count
+						&& kvp.Value[i].bottom)
 					{
 						AddSupportColumn(supportColumnsToAdd, xPos, yPos, 0, kvp.Value[i].z + .01);
 					}