diff --git a/calibration.html b/calibration.html
index cbe6535..54854ad 100644
--- a/calibration.html
+++ b/calibration.html
@@ -62,6 +62,29 @@
                 <li>4 top layers, 3 bottom layers, 3 perimeters</li>
                 <li>20% rectilinear infill</li>
             </ul>
+            <p>The default start gcode is as follows (this can be completely replaced by ticking the approprpriate option on each form):</p>
+<pre>; G-Code originally generated by Simplify3D(R) Version 4.1.2
+; This calibration test gcode modified by the Teaching Tech Calibration website: https://teachingtechyt.github.io/calibration.html
+;M80 ; power supply on
+G90
+M82
+M106 S0
+;bed0a
+;bed0b
+;temp0a
+;temp0b
+G28 ; home all axes
+;G29 ; probe ABL
+;M420 S1 ; restore ABL mesh 
+;customstart
+G0 Z3; fix for delta printers that home at max`;</pre>
+            <p>The default end gcode is as follows (this can be completely replaced by ticking the approprpriate option on each form):</p>
+            <pre>G28 X0 ; home X axis
+M106 S0 ; turn off cooling fan
+M104 S0 ; turn off extruder
+M140 S0 ; turn off bed
+M84 ; disable motors
+;customend</pre>
             <p>The information above is a summary, but if you wish to see the exact settings, the Simplify3D fff profile is available for download <a href="files/calibration.fff" target="_blank">here</a>.</p>
             <p>Please note that non Simplify users can simply open this file in a text editor and everything will be listed.</p>
             <p>You may notice settings related to temperatures, retraction, Z hop, part cooling, etc have set values, but these are altered by post processing scripts and this site to ultimately be set using the user's inputs. Several parameters work like this, please don't be fooled by what is in the slicing profile. Opening the final gcode file in a text editor and searching for 'custom' will show if the user's inputs have been successfully adopted.</p>