Beer crate for 18650 batteries

I really liked these battery crates with letters on the sides by CAD-guy, but I couldn't find any with letters for 18650 batteries, so I made a model myself. I liked the one with diagonal pattern. 

Used another model from Valentino Hesse for some additional measurements. 

(I haven't printed it myself yet, so I have no idea if it's good enough.)

Also.. I added a step file for those who could make use of it. :-)

Edit: Printed it last night and except for my lousy slicer calibration and lack of belt tensioning (and lots of other stuff), it turned out pretty okay in my opinion if you get rid of all the stringing artifacts. :-)