Google is your friend have a look at this, make pat files - Page 2 - AutoLISP, Visual LISP & DCL - AutoCAD Forums
Got close can see need another go. Will let you try that, pattern has 0.002 gaps.

*BOND002,bond002
90,0.50124896,1,0,1,0.49958368,-0.50041632
180,0.58451291,1,0,1,0.08326395,-0.91673605
270,0.58451291,0.50041632,0,1,0.49958368,-0.50041632
0,0.50124896,0.50041632,0,1,0.08326395,-0.91673605
90,0.25062448,1,0,1,0.49958368,-0.50041632
180,0.50041632,1,0,1,0.24979184,-0.75020816
270,0.50041632,0.50041632,0,1,0.49958368,-0.50041632
0,0.25062448,0.50041632,0,1,0.24979184,-0.75020816
90,0.08326395,1,0,1,0.49958368,-0.50041632
180,0.24979184,1,0,1,0.16652789,-0.83347211
270,0.24979184,0.50041632,0,1,0.49958368,-0.50041632
0,0.08326395,0.50041632,0,1,0.16652789,-0.83347211
90,0.41798501,0.49958368,0,1,0.49958368,-0.50041632
180,0.50124896,0.49958368,0,1,0.08326395,-0.91673605
270,0.50124896,0,0,1,0.49958368,-0.50041632
0,0.41798501,0,0,1,0.08326395,-0.91673605
90,0.16736053,0.49958368,0,1,0.49958368,-0.50041632
180,0.41715237,0.49958368,0,1,0.24979184,-0.75020816
270,0.41715237,0,0,1,0.49958368,-0.50041632
0,0.16736053,0,0,1,0.24979184,-0.75020816
90,0,0.49958368,0,1,0.49958368,-0.50041632
180,0.16652789,0.49958368,0,1,0.16652789,-0.83347211
270,0.16652789,0,0,1,0.49958368,-0.50041632
0,0,0,0,1,0.16652789,-0.83347211