$ Nastran bulk data written by FieldCraft
$ units: unspecified
SOL 103
CEND
TITLE = FieldCraft model
ECHO = NONE
SUBCASE 1
  SUBTITLE = Modes
  SPC = 1
  METHOD = 2
  DISPLACEMENT = ALL
BEGIN BULK
PARAM       POST      -1
PARAM    AUTOSPC     YES
PARAM   COUPMASS       1
$ nodes
GRID*                 81                           -0.05            1.45
*                   0.45
GRID*                 82                            2.15             1.5
*                   0.65
GRID*                 83                              2.            0.15
*                   0.55
GRID*                 84                            0.05              0.
*                    0.5
GRID*                 85                            0.05             0.7
*                   0.95
GRID*                 86                            1.05             1.5
*                   1.05
GRID*                 87                            2.05             0.9
*                   1.15
GRID*                 88                            1.05             0.1
*                   1.05
GRID*                 89                           -0.05            0.75
*                     0.
GRID*                 90                            1.05            1.45
*                   0.05
GRID*                 91                             2.1            0.75
*                   0.05
GRID*                 92                              1.            0.05
*                     0.
GRID*                 93                              0.             1.4
*                    0.9
GRID*                 94                             2.1             1.6
*                    1.2
GRID*                 95                              2.             0.2
*                    1.1
GRID*                 96                             0.1              0.
*                     1.
GRID*                 97                            -0.1             1.5
*                     0.
GRID*                 98                             2.2             1.4
*                    0.1
GRID*                 99                              2.             0.1
*                     0.
GRID*                100                              0.              0.
*                     0.
$ reference points
$ reference point RP: GRID 99999999
GRID*           99999999                              1.            0.75
*                     2.
$ materials
$ material Steel: MAT1 1
MAT1*                  1         210000.                             0.3
*                7.85E-9
$ properties
$ section s: PSOLID 1
PSOLID         1       1           THREE            FULL
$ elements
CHEXA          7       1     100      99      98      97      96      95
              94      93      92      91      90      89      84      83
              82      81      88      87      86      85
$ couplings
$ coupling lid: RBE2 8
RBE2           899999999  123456      85      86      87      88      93
              94      95      96
$ boundary conditions
$ step Modes: SPC 1
SPC1           1  123456      89      90      91      92      97      98
              99     100
$ eigenvalue extraction
EIGRL*                 2                           5000.               6
ENDDATA