Dial indicator bracket for Prusa i3

I printed the one from which this remix was inspired (http://www.thingiverse.com/thing:41090), but it did not fit my printer. I really liked the idea though, so I made one for my printer (prusa i3). This one can use 2 different sizes of "pins" from the dial indicator (9.5mm and 8mm).
I used it of course to level the print bed, but also to bring both sides of the Z axis to exactly the same distance to the Y axis rods. This makes for smoother operation of Z axis and more reliable prints.
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