   }
   if (scale == 2) {
 
-    len = 500;
+
     t1 = 293.66;
     t2 = 329.63;
     t3 = 349.23;


  if (scale == 0) {

    len = 500;
    t1 = 220;
    t2 = 246.94;
    t3 = 277.18;

  }
  if (scale == 3) {


    t1 = 349.23;
    t2 = 392.00;
    t3 = 440.00;
