Stackable DVD Blu-Ray Wall Rack

Update 2/13/19: New and improved version available: https://www.thingiverse.com/thing:3425351

Created from scratch based on a design by tmorris9, but such that multiple racks can be lined up seamlessly without a gap between the discs.

Other changes:

* Reduced structure thickness (for quicker printing with less filament, still more than sufficient for it's purpose)
* Reduced the size of the slot for the disc to keep the discs securely in place (felt too loose in the original design, though it may be too tight on cases with collectible cardboard sleeves)
* Added a 1mm notch to more securely hold blu-ray sizes.
* Placed circular holes between slots and wall to again reduce weight and filament consumption while maintaining strength and structural integrity.

I have included mounting holes on the top and bottom for a screw or nail, but I used simple 3m mounting strips (see photo).

I am including the tinkercad file below so that you may edit it as you see fit for personal n