diff --git a/MarlinBraille/Configuration.h b/MarlinBraille/Configuration.h
index 40f6b0e..1abc005 100644
--- a/MarlinBraille/Configuration.h
+++ b/MarlinBraille/Configuration.h
@@ -562,7 +562,8 @@
  * Override with M92
  *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
  */
-#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 46, 4000, 500 }
+//#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 46, 4000, 500 } // pololu 16 microstep
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80 * 2, 90, 4000, 500 } // pololu 16 microstep with big roll
 
 /**
  * Default Max Feed Rate (mm/s)
@@ -1052,7 +1053,8 @@
 // Manually set the home position. Leave these undefined for automatic settings.
 // For DELTA this is the top-center of the Cartesian print volume.
 //#define MANUAL_X_HOME_POS 0
-#define MANUAL_Y_HOME_POS 30
+//#define MANUAL_Y_HOME_POS 30
+#define MANUAL_Y_HOME_POS -20
 //#define MANUAL_Z_HOME_POS 0
 
 // Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area.
diff --git a/MarlinBraille/Configuration_adv.h b/MarlinBraille/Configuration_adv.h
index f2107b6..57e598b 100644
--- a/MarlinBraille/Configuration_adv.h
+++ b/MarlinBraille/Configuration_adv.h
@@ -1292,8 +1292,8 @@
   #define SPINDLE_LASER_PWM_INVERT      true   // set to "true" if the speed/power goes up when you want it to go slower
   //#define SPINDLE_LASER_POWERUP_DELAY   5000   // delay in milliseconds to allow the spindle/laser to come up to speed/power
   //#define SPINDLE_LASER_POWERDOWN_DELAY 5000   // delay in milliseconds to allow the spindle to stop
-  #define SPINDLE_LASER_POWERUP_DELAY   10   // delay in milliseconds to allow the spindle/laser to come up to speed/power
-  #define SPINDLE_LASER_POWERDOWN_DELAY 10   // delay in milliseconds to allow the spindle to stop
+  #define SPINDLE_LASER_POWERUP_DELAY   25   // delay in milliseconds to allow the spindle/laser to come up to speed/power
+  #define SPINDLE_LASER_POWERDOWN_DELAY 25   // delay in milliseconds to allow the spindle to stop
   #define SPINDLE_DIR_CHANGE            true   // set to true if your spindle controller supports changing spindle direction
   #define SPINDLE_INVERT_DIR            false
   #define SPINDLE_STOP_ON_DIR_CHANGE    true   // set to true if Marlin should stop the spindle before changing rotation direction