Now, this doesn't quite look the way you expected it to. The concrete pattern doesn't have the closed triangles. To test it out you go to another drawing and you get a correct hatch...
Now why does this happen? If you want me to bore you with why this happens go ahead and e-mail me and I will try my best to explain it, but basically it has to do with the base point of the hatch pattern. This is the origin of the pattern. The farther away from the origin of your drawing (0,0) the more likely your hatch will come out a little out of whack. Usually this happens when you are working on something that is based on GIS coordnates and your X:Y is 6,000,000:6,000,000 and the hatch origin is at 0:0
Before AutoCAD 2005 there were some lisp routines to fix this or you could type SNAPBASE and pick a new base point. Now (since 2006+) it is built into the hatch command (and the hatch edit command). In the lower left corner you will now see the hatch Origin options...
For the best results I recommend checking the box "Default to boundaey extents" box. Doing this will pretty much give you consistent results.
Well, good luck!
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