Connection table for R13
  25  26  30
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 O
 O
   1   2
   1  10
   1  20
   1  21
   2   3
   3   4
   4   5
   4  18
   4  19
   5   6
   5  10
   6   7
   7   8
   8   9
   8  11
   9  10
  11  12
  11  22
  12  13
  13  14
  14  15
  15  16
  15  23
  16  17
  17  24
  17  25
   4   5   6   7 180.0   5.0
  10   5   6   7   0.0   5.0
   4   5  10   1   0.0   5.0
   4   5  10   9 180.0   5.0
   6   5  10   1 180.0   5.0
   6   5  10   9   0.0   5.0
   5   6   7   8   0.0   5.0
   6   7   8   9   0.0   5.0
   6   7   8  11 180.0   5.0
   7   8   9  10   0.0   5.0
  11   8   9  10 180.0   5.0
   8   9  10   1 180.0   5.0
   8   9  10   5   0.0   5.0
  12  13  14  15 180.0   5.0
  13  14  15  16 180.0   5.0
  13  14  15  23   0.0   5.0
   1   2  10  20  35.0   5.0
   1  10  20  21 -35.0   5.0
   1  20  21   2  35.0   5.0
   1  21   2  10 -35.0   5.0
   4   3   5  18  35.0   5.0
   4   5  18  19 -35.0   5.0
   4  18  19   3  35.0   5.0
   4  19   3   5 -35.0   5.0
   5   4   6  10   0.0   5.0
   8   7   9  11   0.0   5.0
  10   1   5   9   0.0   5.0
  11   8  12  22   0.0   5.0
  15  14  16  23   0.0   5.0
  17  16  24  25   0.0   5.0