changed M220

F0x06 · Nov 29, 2018 · 8e239ce · 8e239ce
1 parent 929e1de
commit 8e239ce
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
@@ -6080,11 +6080,15 @@ SERIAL_PROTOCOLPGM("\n\n");
       SERIAL_ECHOLN("");
     }break;
     #endif
+
     case 220: // M220 S<factor in percent>- set speed factor override percentage
     {
-      if(code_seen('S'))
-      {
+	  if (code_seen('B')) //backup current speed factor
+	  {
 		saved_feedmultiply_mm = feedmultiply;
+	  }
+      if(code_seen('S'))
+      {		
         feedmultiply = code_value() ;
       }
 	  if (code_seen('R')) { //restore previous feedmultiply