Icepicktony's sprinkler works great! I used his print parameters and it came out perfectly with no strings hanging. It is hard to see the range of the water in the pic, but on my well system, it waters a radius of about 8 feet with a nice solid mist, and that's after going through a 50 foot hose. Awesome! My mare is a ham -- she can't resist a photo opp -- so out of about 15 pics, the sprinkler is only visible in two. One of those is posted here.
I think she just wants to say thanks! My gelding (a shy boy, not in pics) and I thank Icepicktony also.
She's sweet; I hope she enjoys her new sprinkler!