Cube Frame - 90° Overhang Without Supports

To print:

1. Slice and print Part A
2. Slice Part B, adding a pause (M601) at 24.2mm
3. Start printing Part B
4. When the print pauses, drop Part A on top of Part B so that it fits in the notches
5. Resume the print

The resulting print will consist of both parts fused together.

I'm pretty sure this approach could be extended to produce more dramatic effects, like a floating 90° overhang using something like a dove tail joint.

This model was inspired by the following video.