Connection table for HMD
  19  21  25
BR
 O
 O
 N
 N
 N
 N
 N
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
   1   9
   2  13
   3  18
   4   9
   4  12
   5  13
   5  14
   6  18
   6  19
   7  17
   7  19
   8  19
   9  10
  10  11
  11  12
  11  16
  12  13
  14  15
  15  16
  16  17
  17  18
  12   4   9   1 180.0   5.0
  12   4   9  10   0.0   5.0
  19   6  18   3 180.0   5.0
  19   6  18  17   0.0   5.0
  18   6  19   7   0.0   5.0
  18   6  19   8 180.0   5.0
  19   7  17  16 180.0   5.0
  19   7  17  18   0.0   5.0
  17   7  19   6   0.0   5.0
  17   7  19   8 180.0   5.0
   1   9  10  11 180.0   5.0
   4   9  10  11   0.0   5.0
   9  10  11  12   0.0   5.0
   7  17  18   3 180.0   5.0
   7  17  18   6   0.0   5.0
  16  17  18   3   0.0   5.0
  16  17  18   6 180.0   5.0
   9   1   4  10   0.0   5.0
  11  10  12  16  35.0   5.0
  12   4  11  13   0.0   5.0
  13   2   5  12   0.0   5.0
  16  11  15  17  35.0   5.0
  17   7  16  18   0.0   5.0
  18   3   6  17   0.0   5.0
  19   6   7   8   0.0   5.0