Foldarap 3D printer axis z limiter ver_1

Hi!
Foldarap in my workplace had wobbling axis z bolt, which was extremely irritating, so I decided to print some limiter. I couldn't find one on site, so I made it myself. It's based on small 9 mm diameter nut, which you can see on picture. I used two limiters sticked together on nut for one bolt, but it should work with only one limiter (didn't try it though). Hope somebody will find it useful.
I'll probably try to remodel it to remove nut. Until then, enjoy.