Picture: > > https://scontent-lga3-1.xx.fbcdn.net/v/t1.0-9/11202432_1220827621266547_5667155093725290740_n.jpg?oh=29e505080b9cc7dd45e60e6a29f257e7&oe=57FF0F3F > > Crease pattern: > > https://scontent-lga3-1.xx.fbcdn.net/v/t1.0-9/13592388_1373059476043360_3474699899956170312_n.jpg?oh=4704581a20b2dfc8fb6f61be1e57791f&oe=58072F05 > > Most of the frames I saw or designed are 3D like. 2D versions usually are made to cover or hold only 4 corners . Can you tell us more about your locking/folding sequence?
I did try reproducing your frame from crease pattern yesterday. I do have some suggestions. Can you extend your method to any rectangle? Document and compare all possible mechanisms of corner locking. I did come up with one good secured variation with different crease pattern. Your 2D design also reminds me of my old unpublished work- Windowed Envelope. My goal was to fold any customized envelope containing a window from single rectangle. You can see plenty of those commercial windowed envelopes daily. My finished design is just like a frame with an off-center window. My locking is OK for hand delivery but might not be secured enough for general mailing. I think I will have another attempt later to improve the lock - perhaps "Unopenable Windowed Envelope"? I can post some pictures later. Good luck on your findings or folding. Sy
