From 4b5eff5ec64abbc4283cfcd119a9f2feb6cda7ac Mon Sep 17 00:00:00 2001
From: Shawn Bruce <kantlivelong@gmail.com>
Date: Thu, 26 Oct 2017 12:42:55 -0400
Subject: [PATCH] Don't set target temp for tools that do not exist.

---
 src/octoprint/util/comm.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/octoprint/util/comm.py b/src/octoprint/util/comm.py
index 9799127a..11551adb 100644
--- a/src/octoprint/util/comm.py
+++ b/src/octoprint/util/comm.py
@@ -2604,7 +2604,7 @@ class MachineCom(object):
 		if not match and support_r:
 			match = regexes_parameters["floatR"].search(cmd)
 
-		if match:
+		if match and self.last_temperature.tools.get(toolNum) is not None:
 			try:
 				target = float(match.group("value"))
 				self.last_temperature.set_tool(toolNum, target=target)