Summary

UPDATED: Added a little cutout in the base so the hump on the front of the Echo fits in a little better, and not as tight. Also enlarged the peg holes a bit, although depending on your printer, you may still need to ream them out a bit. These updates are on the 2.1 files.

This is a slight remix of Volkh's design which mainly puts the holes on the inside piece versus outside for a cleaner look. This is also the way cassette shells are made as well. I've also cut out a small section where the buttons are to allow the case to close easier without snagging on them.

There are two optional backs, one with the cutout S logo, and another with a cutout Nine Inch Nails logo. These look great with a post-it note, or something similar placed inside to give them color. Make the paper long enough to as to fold around the bottom (check the pic), and it keeps the plastic from scratching the player.