Hi,
This is a picture frame (around 60cm 80cm ) I did for stretching a canvas map of a LARP.
I designed it for a future insert in an IKEA Ribba frame.
It is 5 ⅛" birch plywood, glued and joined to make each sides. Needed 5 sheet for complete design, may be optimized for 4 but not less. Cut and assembled in 1 day.
I model it in Autodesk Inventor based on traditional framing.
Now I need a front mat and to restretch it, I didn’t do it properly the first time.
I also did the cut for a picture frame mat for my diploma. But I can’t show it.
What a cool joining method! Too bad it’s on the back, it’s really attractive.
Very nice! 
Nice practical cut!
It was inspired by the “circle” “wave” from msraynsford but hexagonal (hexagon are my shape). The dot in the center of the joint is a toothpick to align all the pieces. I also scored the assembly number on the pieces.
Here is the final result in the frame (IKEA Ribba 61x91) with a recut mat. The finished canvas was exactly 61cm. So tight fit in place
That’s a beautiful result. (I loathe matting and framing pictures- too hard to get it even.)
I use the provided mat from IKEA then I only opened the opening the necessary size ( used inkscape to do the maths verification.
Now I only need an other fantasy map to complete my triptic of maps
I am thinking of this one https://images.app.goo.gl/2uRAi1Rb8Z4XYWo97
Or this one https://images.app.goo.gl/ijjvTzCxHNmdBSyS7
Or something else…open to suggestions.
I like the first one. 
