update guider profile

web/kiri/filter/FDM/Flashforge.Guider.II

@@ -1,23 +1,33 @@
 {
     "pre":[
-        "; M118 X15.00 Y15.00 Z10.00 T0",
+        "; set bed and nozzle temps",
         "M104 S{temp} T0",
         "M140 S{bed_temp}",
-        "; M107",
+        "; absolute positioning and home",
         "G90",
-        "; M132 X Y Z A B",
-        "; M907 X100 Y100 Z40 A80 B20",
+        "G28",
+        "; wait for nozzle and bed to reach target temps",
         "M190 S{bed_temp}",
         "M109 S{temp} T0",
-        "; pre-extrude",
-        "G1 X-140 Y-115 Z0.4 F400",
-        "G1 Y50 Z0.2 E240 F1800"
+        "M7 T0",
+        "M6 T0",
+        "; select nozzle 0",
+        "M108 T0",
+        "G92 E0",
+        "G1 E0 F300",
+        "; purge nozzle",
+        "G1 X150 Y75 Z15 E-2 F500",
+        "G1 Y125 Z0.5 F600",
+        "G1 Y50 E40 F600"
     ],
     "post":[
+        "; stop fan, cool nozzle and bed",
         "M107",
         "M104 S0 T0",
         "M140 S0",
-        "G162 Z",
+        "; slow descent of bed",
+        "G0 F300",
+        "; end print",
         "M18"
     ],
     "cmd":{