diff --git a/octoprint_CalibrationTools/api.py b/octoprint_CalibrationTools/api.py
index 4e22888..28556fd 100644
--- a/octoprint_CalibrationTools/api.py
+++ b/octoprint_CalibrationTools/api.py
@@ -11,6 +11,7 @@ CMD_LOAD_STEPS = "loadSteps"
 CMD_START_EXTRUSION = "startExtrusion"
 CMD_SAVE_E_STEPS = "saveESteps"
 
+
 class API(octoprint.plugin.SimpleApiPlugin):
     @staticmethod
     def get_api_commands():
@@ -52,7 +53,7 @@ class API(octoprint.plugin.SimpleApiPlugin):
             })
 
         if command == CMD_START_EXTRUSION:
-            self._logger.debug("Heating the tools")
+            self._logger.debug("Heating the extruder [%s]", data)
             if not self._printer.is_ready():
                 self._logger.warning("Printer not ready, operation canceled")
                 return flask.abort(503, {
@@ -60,14 +61,18 @@ class API(octoprint.plugin.SimpleApiPlugin):
                 })
 
             # Register event to be trigger when temp is achieved
-            self.registerEventTemp("T0", 180, self.startExtrusion)
+            self.registerEventTemp("T0", int(data["extrudeTemp"]), self.startExtrusion, data["extrudeLength"], data["extrudeSpeed"])
 
             # Heating the tool
-            self._printer.commands("M104 S180")
+            self._printer.commands("M104 S%(extrudeTemp)s" % data)
             return
 
         if command == CMD_SAVE_E_STEPS:
-            self._printer.commands(["M92 E%(newESteps)s" % data, "M500"])
+            cmds = ["M92 E%(newESteps)s" % data, "M500"]
+            if self.
+                cmds = cmds + ["M104 S0"]
+            self._printer.commands()
+
             return
 
         if command == CMD_TEST:
@@ -76,11 +81,12 @@ class API(octoprint.plugin.SimpleApiPlugin):
 
 ############## HANDLERS ##############
     @staticmethod
-    def startExtrusion(self, temps, *args):
-        self._logger.debug("Temperature achieved, extrusion started %s, %s", temps, args)
+    def startExtrusion(self, temps, extrudeLength, extrudeSpeed, *args):
+        self._logger.debug("Temperature achieved, extrusion started [temps:%s, extrudeLength:%s, extrudeSpeed:%s, args:%s]",
+        temps, extrudeLength, extrudeSpeed, args)
 
         # Extrude
-        self._printer.extrude(amount=120, speed=50)
+        self._printer.extrude(amount=int(extrudeLength), speed=int(extrudeSpeed))
 
     @staticmethod
     def m92GCodeResponse(self, line, event):
@@ -100,4 +106,4 @@ class API(octoprint.plugin.SimpleApiPlugin):
                 self._logger.debug("Finished data collection")
                 self.collectCommand = False
         if event:
-            event.set()
\ No newline at end of file
+            event.set()
diff --git a/octoprint_CalibrationTools/hooks.py b/octoprint_CalibrationTools/hooks.py
index 28e4917..1738668 100644
--- a/octoprint_CalibrationTools/hooks.py
+++ b/octoprint_CalibrationTools/hooks.py
@@ -62,6 +62,7 @@ class Hooks():
                     self.events.remove(event)
 
     # Registering a temp event
+    # Trigger a function when the temparature
     def registerEventTemp(self, tool, targetTemp, func, *arguments):
         if func is None or not isinstance(func, collections.Callable):
             self._logger.warn("registerEventTemp: Attempt to register event without a function")
diff --git a/octoprint_CalibrationTools/static/js/CalibrationTools.js b/octoprint_CalibrationTools/static/js/CalibrationTools.js
index 475eb5a..a259c44 100644
--- a/octoprint_CalibrationTools/static/js/CalibrationTools.js
+++ b/octoprint_CalibrationTools/static/js/CalibrationTools.js
@@ -62,15 +62,25 @@ $(function () {
         }
 
         self.startExtrusion = function () {
-            OctoPrint.simpleApiCommand("CalibrationTools", "startExtrusion").done(function (response) {
+            OctoPrint.simpleApiCommand("CalibrationTools", "startExtrusion", {
+                "extrudeTemp": self.testParam.extrudeTemp(),
+                "extrudeLength": self.testParam.extrudeLength(),
+                "extrudeSpeed": self.testParam.extrudeSpeed()
+            }).done(function (response) {
                 new PNotify({
                     title: "E axe calibration started",
                     text: "<span style='font-weight:bold; color: red;'>Heating nuzzle has started!!!</span><br> When extrusion stops you have to fulfil <b>Length after extrusion</b> and save the new value ",
-                    type: "warning",
-                    hide: false
+                    type: "warning"
                 });
                 console.log(response);
-            })
+            }).fail(function (response) {
+                new PNotify({
+                    title: "Error on starting extrusion ",
+                    text: response.responseJSON.error,
+                    type: "error",
+                    hide: false
+                });
+             })
         }
 
         self.tempRestart = function () {