From 48aedb2c3c8fa45f9866734af23f66671d0edc48 Mon Sep 17 00:00:00 2001
From: Lars Brubaker <larsbrubaker@gmail.com>
Date: Mon, 28 Nov 2022 11:18:26 -0800
Subject: [PATCH] make check for name collision case insensitive

---
 .../PartPreviewWindow/View3D/Actions/SheetEditor.cs          | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/MatterControlLib/PartPreviewWindow/View3D/Actions/SheetEditor.cs b/MatterControlLib/PartPreviewWindow/View3D/Actions/SheetEditor.cs
index ce1dd1a46..a952da42b 100644
--- a/MatterControlLib/PartPreviewWindow/View3D/Actions/SheetEditor.cs
+++ b/MatterControlLib/PartPreviewWindow/View3D/Actions/SheetEditor.cs
@@ -181,7 +181,10 @@ namespace MatterHackers.MatterControl.DesignTools
             // first replace spaces with '_'
             var name = editSelectedName.Text.Replace(' ', '_');
 			// next make sure we don't have the exact name already
-			name = agg_basics.GetNonCollidingName(name, existingNames, false);
+			name = agg_basics.GetNonCollidingName(name, (name) =>
+			{
+				return !existingNames.Contains(name.ToLower());
+			}, false);
 			editSelectedName.Text = name;
 			SheetData[selectedCell.x, selectedCell.y].Name = name;
 			SheetData.Recalculate();