ZMR 250 XT60 Holder
This is my version of the following design found on thingiverse.com
http://www.thingiverse.com/thing:997264
I removed the beveled base and made it flat, around 3mm on each side. It's meant to be glued onto the ZMR 250 frame.
It was designed in Tinkercad.
https://www.tinkercad.com/things/l73zNel5noJ
Print in PLA using your favorite settings.