I can't really take credit for this. I have been thinking of something like this for some time but couldn't figure a design that would work. I saw this design on the VAF. I'm not CAD savvy in any way, but Jon on VAF was able to send me the STL file that would enable me to print his design. I'm new to 3D printing so I'm learning a new skill. I researched and decided to purchase a nice but modestly priced printer. Once I obtained the STL file I needed to open it in a "slicer" application. The one that came with the printer was simple to understand and seemed to work well. The bottom part of the tray is printed in two parts which are then glued together. The top is in one piece. I have to say the printer worked quite well out of the box with no adjusting of settings required. The print took quite some time to complete. The top alone was over 20 hours, but I'm quite satisfied with the results. The bracket is designed to have the battery sit offset from center. This allows the cross bar to stay clear of the terminals. The top fit the battery very well but the bottom needed some sanding to trim the sides down a bit.