... lightning90, 0,0, 0, .5, .5, –. 25 0, –. 25, .5, 0,. 75, . 25, –. 25 90, –. 25, .5, 0, .5, .5, –. 25 5. Press Enter after the last line. Save the file as lightning.pat in your AutoCAD Bible folder. Close Notepad.6. ... 0,0, and the second line starts to the left by 0 .5 units (the delta-y) and up by 0. 25 units(the delta-x), as shown by the dimensions.Figure 3 1-8 : The ftrailer hatch pattern with an added delta-x.42_788864 ... trailers1 05, 0,0, 0. 25, 0 .5, .5, –. 25, 0,–.1,0,–. 25 Figure 3 1-7 : The ftrailer hatch pattern with a dash and two dots.You might wonder why the pattern staggers downward after adding a positive delta-x....