Double Impossible Dovetail Cube

After coming across the Impossible Dovetail from Clickspring I found Onkel Pierre's model and printed it with excellent results. I really liked the concept, and saw an opportunity to double-down with twice as many dovetails. Using the same 45deg sliding concept, this model features the main dovetail pin with a second smaller dovetail cut back into it from the tail side. Prints well without support and showcases the capabilities of 3D printing parts with overhanging and undercut features on the tail that would be extremely challenging to make on a CNC (you could absolutely make a stunning metal version of this with a wire EDM process and I'd love to see that!)

Designed with a 0.1mm tolerance, so it fits quite snug without any securing device, and includes 3mm dia holes to glue in a pair of magnets in the center if desired. Print with the flat side down, no support or brim required.

I printed it in PLA to give it a solid sturdy feel, and a 0.16mm resolution for a smooth contact face. A more flexible material like PETG would also be fun as a mis-direction to give the impression that the mechanism is based on stretching or deforming that material

Fits on the original Impossible Dovetail Cube Stand by Onkel Pierre Impossible Dovetail Joint Cube (IDJC) inspired by "Clickspring" by Onkel Pierre | Download free STL model | Printables.com

I gave myself the challenge to make this model and double the effect, so I've added a second smaller dovetail in the opposite direction cut back into the original tail.