Stacking DIMM holder

Needed a way to store my embarrassingly large collection of DIMMS in limited space.

I saw [djkrice's design](https://www.thingiverse.com/thing:2799101) but needed the same for DIMMs. So, I followed his cues and came up with what you see here with a few tweaks. I wanted to use less material, so I went for hexagons in the base. I also chamfered the slots.

I am currently working on V2 of this design that will hold 18 sticks (full dual processor server compliment) and a SO-DIMM version with the same footprint.