diff --git a/js/createform.js b/js/createform.js
index 0a6c9f2..0626e3b 100644
--- a/js/createform.js
+++ b/js/createform.js
@@ -367,6 +367,9 @@ var accel = /*html*/ `<h4>Base feedrate/speed</h4>
 <p>You can specify the feedrate for X and Y movements. Both the inner and outer perimeter speed can be specified. It is recommend to follow the process above to calculate safe limits for feedrate.</p>
 <p><label>Inner perimeter feedrate (mm/sec): <input type="number" name="innerFeedrate" value="60" min="5" max="1000" step="1"></label></p>
 <p><label>Outer perimeter feedrate (mm/sec): <input type="number" name="outerFeedrate" value="60" min="5" max="1000" step="1"></label></p>
+<h4>Delta printer</h4>
+<p>Delta printers require X, Y and Z acceleration limits to be raised at the start of the test, whereas cartesian and coreXY only need X and Y limits raised. Tick the box if you are printing this test on a delta printer in order to set the correct behaviour.
+<p><label>Delta printer: <input name="deltaAcc" type="checkbox" value="off"></label></p>
 <h4>Acceleration and jerk/junction deviation</h4>
 <p>After entering <b>M503</b>, I have determined my 3D printer firmware uses:</p>
 <label>Jerk: <input type="radio" value="jerk" name="jerk_or_jd" checked="checked" onchange="toggleJ()"></label>
diff --git a/js/gcodeprocessing.js b/js/gcodeprocessing.js
index f774137..c970890 100644
--- a/js/gcodeprocessing.js
+++ b/js/gcodeprocessing.js
@@ -478,7 +478,11 @@ function processGcode(formName) {
             gcode = gcode.replace(/F2880/g, "F"+inner+" ; custom outer perimeter feedrate");
             gcode = gcode.replace(/F2160/g, "F"+outer+" ; custom inner perimeter feedrate");
             // add acceleration segments
-            gcode = gcode.replace(/;process Process-1/, "M201 X50000 Y50000 Z50000; custom raise acceleration limits\nM204 P"+a1+" T"+a1+" ; custom acceleration - A\n;j1");
+            if(formName.deltaAcc.checked == true){
+                gcode = gcode.replace(/;process Process-1/, "M201 X50000 Y50000 Z50000; custom raise acceleration limits delta\nM204 P"+a1+" T"+a1+" ; custom acceleration - A\n;j1");
+            } else {
+                gcode = gcode.replace(/;process Process-1/, "M201 X50000 Y50000; custom raise acceleration limits\nM204 P"+a1+" T"+a1+" ; custom acceleration - A\n;j1");
+            }
             gcode = gcode.replace(/;process Process-2/, "M204 P"+b1+" T"+b1+" ; custom acceleration - B\n;j2");
             gcode = gcode.replace(/;process Process-3/, "M204 P"+c1+" T"+c1+" ; custom acceleration - C\n;j3");
             gcode = gcode.replace(/;process Process-4/, "M204 P"+d1+" T"+d1+" ; custom acceleration - D\n;j4");
@@ -486,12 +490,21 @@ function processGcode(formName) {
             gcode = gcode.replace(/;process Process-6/, "M204 P"+f1+" T"+f1+" ; custom acceleration - F\n;j6");
             // add jerk/junction deviation segments
             if(jerk_or_jd == "jerk"){
-                gcode = gcode.replace(/;j1/, "M205 X"+a2+" Y"+a3+" Z"+a5+" ; custom jerk - A");
-                gcode = gcode.replace(/;j2/, "M205 X"+b2+" Y"+b3+" Z"+b5+" ; custom jerk - B");
-                gcode = gcode.replace(/;j3/, "M205 X"+c2+" Y"+c3+" Z"+c5+" ; custom jerk - C");
-                gcode = gcode.replace(/;j4/, "M205 X"+d2+" Y"+d3+" Z"+d5+" ; custom jerk - D");
-                gcode = gcode.replace(/;j5/, "M205 X"+e2+" Y"+e3+" Z"+e5+" ; custom jerk - E");
-                gcode = gcode.replace(/;j6/, "M205 X"+f2+" Y"+f3+" Z"+f5+" ; custom jerk - F");
+                if(formName.deltaAcc.checked == true){
+                    gcode = gcode.replace(/;j1/, "M205 X"+a2+" Y"+a3+" Z"+a5+" ; custom jerk delta - A");
+                    gcode = gcode.replace(/;j2/, "M205 X"+b2+" Y"+b3+" Z"+b5+" ; custom jerk delta - B");
+                    gcode = gcode.replace(/;j3/, "M205 X"+c2+" Y"+c3+" Z"+c5+" ; custom jerk delta - C");
+                    gcode = gcode.replace(/;j4/, "M205 X"+d2+" Y"+d3+" Z"+d5+" ; custom jerk delta - D");
+                    gcode = gcode.replace(/;j5/, "M205 X"+e2+" Y"+e3+" Z"+e5+" ; custom jerk delta - E");
+                    gcode = gcode.replace(/;j6/, "M205 X"+f2+" Y"+f3+" Z"+f5+" ; custom jerk delta - F");
+                } else {
+                    gcode = gcode.replace(/;j1/, "M205 X"+a2+" Y"+a3+" ; custom jerk - A");
+                    gcode = gcode.replace(/;j2/, "M205 X"+b2+" Y"+b3+" ; custom jerk - B");
+                    gcode = gcode.replace(/;j3/, "M205 X"+c2+" Y"+c3+" ; custom jerk - C");
+                    gcode = gcode.replace(/;j4/, "M205 X"+d2+" Y"+d3+" ; custom jerk - D");
+                    gcode = gcode.replace(/;j5/, "M205 X"+e2+" Y"+e3+" ; custom jerk - E");
+                    gcode = gcode.replace(/;j6/, "M205 X"+f2+" Y"+f3+" ; custom jerk - F");
+                }
             } else {
                 gcode = gcode.replace(/;j1/, "M205 J"+a4+" ; custom junction deviation - A");
                 gcode = gcode.replace(/;j2/, "M205 J"+b4+" ; custom junction deviation - B");