Merge pull request #1416 from PavelSindler/z_cal_endstops

Z cal endstops and stop paused print fix

Firmware/Marlin_main.cpp

@@ -2793,10 +2793,15 @@ bool gcode_M45(bool onlyZ, int8_t verbosity_level)
 			lcd_puts_P(_T(MSG_FIND_BED_OFFSET_AND_SKEW_LINE2));
 		}
 			
+		bool endstops_enabled  = enable_endstops(false);
+        current_position[Z_AXIS] -= 1; //move 1mm down with disabled endstop
+        plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], homing_feedrate[Z_AXIS] / 40, active_extruder);
+        st_synchronize();
+
 		// Move the print head close to the bed.
 		current_position[Z_AXIS] = MESH_HOME_Z_SEARCH;
 
-		bool endstops_enabled  = enable_endstops(true);
+		enable_endstops(true);
 #ifdef TMC2130
 		tmc2130_home_enter(Z_AXIS_MASK);
 #endif //TMC2130

Firmware/ultralcd.cpp

@@ -6058,6 +6058,7 @@ static void lcd_sd_updir()
 
 void lcd_print_stop()
 {
+	saved_printing = false;
 	cancel_heatup = true;
 #ifdef MESH_BED_LEVELING
 	mbl.active = false;
@@ -6091,7 +6092,7 @@ void lcd_print_stop()
 
 void lcd_sdcard_stop()
 {
-	
+
 	lcd_set_cursor(0, 0);
 	lcd_puts_P(_T(MSG_STOP_PRINT));
 	lcd_set_cursor(2, 2);