Merge pull request #4080 from thinkyhead/rc_probe_feedrates

Save / restore feedrate in probing functions

Marlin/Marlin_main.cpp

 
   static void run_z_probe() {
 
+    float old_feedrate = feedrate;
+
     /**
      * To prevent stepper_inactive_time from running out and
      * EXTRUDER_RUNOUT_PREVENT from extruding
       #endif
 
     #endif // !DELTA
+
+    feedrate = old_feedrate;
   }
 
   /**
    *  The final current_position may not be the one that was requested
    */
   static void do_blocking_move_to(float x, float y, float z) {
-    float oldFeedRate = feedrate;
+    float old_feedrate = feedrate;
 
     #if ENABLED(DEBUG_LEVELING_FEATURE)
       if (DEBUGGING(LEVELING)) print_xyz("do_blocking_move_to", x, y, z);
 
     #if ENABLED(DELTA)
 
-      feedrate = XY_TRAVEL_SPEED;
+      feedrate = xy_travel_speed;
 
       destination[X_AXIS] = x;
       destination[Y_AXIS] = y;
       else
         prepare_move_to_destination();     // this will also set_current_to_destination
 
-      stepper.synchronize();
-
     #else
 
       feedrate = homing_feedrate[Z_AXIS];
       current_position[X_AXIS] = x;
       current_position[Y_AXIS] = y;
       line_to_current_position();
-      stepper.synchronize();
 
     #endif
 
-    feedrate = oldFeedRate;
+    stepper.synchronize();
+
+    feedrate = old_feedrate;
   }
 
   inline void do_blocking_move_to_xy(float x, float y) {
       DEPLOY_Z_SERVO();
 
     #elif ENABLED(Z_PROBE_ALLEN_KEY)
+      float old_feedrate = feedrate;
+
       feedrate = Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE;
 
       // If endstop is already false, the Z probe is deployed
         if (z_min_endstop)
       #endif
         {
-
           // Move to the start position to initiate deployment
           destination[X_AXIS] = Z_PROBE_ALLEN_KEY_DEPLOY_1_X;
           destination[Y_AXIS] = Z_PROBE_ALLEN_KEY_DEPLOY_1_Y;
         }
 
       // Partially Home X,Y for safety
-      destination[X_AXIS] = destination[X_AXIS] * 0.75;
-      destination[Y_AXIS] = destination[Y_AXIS] * 0.75;
+      destination[X_AXIS] *= 0.75;
+      destination[Y_AXIS] *= 0.75;
       prepare_move_to_destination_raw(); // this will also set_current_to_destination
 
+      feedrate = old_feedrate;
+
       stepper.synchronize();
 
       #if ENABLED(Z_MIN_PROBE_ENDSTOP)
 
     #elif ENABLED(Z_PROBE_ALLEN_KEY)
 
+      float old_feedrate = feedrate;
+
       // Move up for safety
       feedrate = Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE;
 
       destination[Y_AXIS] = 0;
       prepare_move_to_destination_raw(); // this will also set_current_to_destination
 
+      feedrate = old_feedrate;
+
       stepper.synchronize();
 
       #if ENABLED(Z_MIN_PROBE_ENDSTOP)
       // TODO: clear the leveling matrix or the planner will be set incorrectly
       setup_for_endstop_move(); // Too late. Must be done before deploying.
 
-      feedrate = homing_feedrate[Z_AXIS];
-
       run_z_probe();
+
       SERIAL_PROTOCOLPGM("Bed X: ");
       SERIAL_PROTOCOL(current_position[X_AXIS] + X_PROBE_OFFSET_FROM_EXTRUDER + 0.0001);
       SERIAL_PROTOCOLPGM(" Y: ");