This is a woodworking inspired picture frame. You can use the fusion 360 file to adjust to the size of glass you're using. The attached .stl's are for 16 -1/8" x 20" glass.

I wanted to print a picture frame bigger than the size of my bed so I took some design ideas from woodworking to splice together multiple pieces. I was having some trouble getting the longer pieces to stick to the bed until I used a raft. Maybe a future iteration will have top, bottom sand sides with three pieces instead of two.

Intructions: Print 2-Body2 2-Body7 2-Body8 2-Body11 4-perpendicular splice 4-tenon

assemble frame, then insert glass, art, backing. Then tie a thick knot in string and insert the knot into the holes in frame. Tension the backing, etc. into the frame by tying the string into the opposite side holes, repeat and use one or more of the strings to mount on a wall.