18650 50 Cell Battery Holder With Bus Bar Cut-out

This is a battery holder I put together for building my own 18650 battery packs.. Turned out pretty nice. I left room to install a 1" copper bus bar and left spacing for soldering connections between the batteries. This is my fist custom design and it is a work in progress.. Works great though!

5-24-16: Added hex cut-outs to make holder more versatile.. Also thinned it down a hair to speed up printing.. See new pictures..

5-31-2016 Added 50_Cell_Very_Thin STL that has cut-outs to slide b