are evenly spaced across a perpendicular plane a laser module 300 may emit any one of a variety of beams 400 to project various patterns 500 such as a dot line cross or other specialty configurations it is well known how to provide such beam shapes from a conventional low powered laser the user may mix and match different types of modules 300 for a given task the laser modules 300 are placed on a manual or self leveling platform 100 capable of holding multiple modules 300 a laser module 300 may be rotated pivoted or turned so as to orient its laser beam in an infinite number of directions a laser module 300 with four reference sides 320 may be used in combination with equivalent laser modules 300 to create any of the above mentioned configurations such a versatile laser module 300 may contain four reference sides 320 oriented such that all sides of the module except two adjacent sides orthogonal to the windowed face are reference sides alternatively a laser module 300 may contain five or six reference sides 320 additional reference sides 320 allows the laser module 300 to have other laser modules 300 stacked on each reference side 320 including under and or on top of the module 300 a laser module 300 may have a shell that is in one embodiment formed from separate pieces thereby allowing ample internal space for mounting electrical and electronic components into the laser module 300 during assembly the laser module 300 may be manufactured with the reference sides 320 formed with a single shell.