| G3006 | WARNING: G3006 | GRID id AND GRID id ARE NOT COLLOCATED ON elemtype ELEMENT id |
| Cause: | The two grid identification numbers specified should share the same physical position on element id, but do not. It is recommended that CELASi, CMASSi, and CDAMPi elements use collocated grid points unless all motion is inline or about the axis formed by the two points. To avoid this restriction use CBUSHi elements. | |
| Action: | Change the coordinates of one of the element grid points or switch the element to a CBUSHi form. | |
| Remarks: | See Autodesk Nastran Reference Guide, Section 4, Bulk Data, for entry format. |