Ok, I’m learning with each one I post, so try this one for size. Got rid of all duplicate lines on this one. Although you can’t remove and print the pieces individually. The zip file contains the .svg and the .ai files, so you can lift them out if you wish. 
puzzle 2.zip (1.2 MB)
Ok. I like this one very much. It doesn’t lose any small choking or in-the-middle-of-the-night-barefoot-walking hazard pieces (well, depending on how big the puzzle gets sized!)
Oh for a fourth color Proofgrade plywood!
I can use acrylic for the frame and base though.
Really enjoying the evolution of these! Keep it up!
