Adjust usage of stepper.synchronize

Marlin/G26_Mesh_Validation_Tool.cpp

@@ -204,8 +204,6 @@
       destination[E_AXIS] = current_position[E_AXIS];
 
       G26_line_to_destination(feed_value);
-
-      stepper.synchronize();
       set_destination_from_current();
     }
 
@@ -220,8 +218,6 @@
     destination[E_AXIS] += e_delta;
 
     G26_line_to_destination(feed_value);
-
-    stepper.synchronize();
     set_destination_from_current();
   }
 
@@ -267,13 +263,12 @@
             if (Total_Prime >= EXTRUDE_MAXLENGTH) return G26_ERR;
           #endif
           G26_line_to_destination(planner.max_feedrate_mm_s[E_AXIS] / 15.0);
-
+          set_destination_from_current();
           stepper.synchronize();    // Without this synchronize, the purge is more consistent,
                                     // but because the planner has a buffer, we won't be able
                                     // to stop as quickly. So we put up with the less smooth
                                     // action to give the user a more responsive 'Stop'.
-          set_destination_from_current();
-          idle();
+
           SERIAL_FLUSH(); // Prevent host M105 buffer overrun.
         }
 
@@ -295,7 +290,6 @@
       set_destination_from_current();
       destination[E_AXIS] += g26_prime_length;
       G26_line_to_destination(planner.max_feedrate_mm_s[E_AXIS] / 15.0);
-      stepper.synchronize();
       set_destination_from_current();
       retract_filament(destination);
     }
@@ -703,7 +697,6 @@
 
     if (current_position[Z_AXIS] < Z_CLEARANCE_BETWEEN_PROBES) {
       do_blocking_move_to_z(Z_CLEARANCE_BETWEEN_PROBES);
-      stepper.synchronize();
       set_current_from_destination();
     }
 
@@ -738,7 +731,7 @@
       lcd_external_control = true;
     #endif
 
-//  debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
+    //debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
 
     /**
      * Pre-generate radius offset values at 30 degree intervals to reduce CPU load.