Dave Mitchell said " To me a modular design is one that is self-integrating. If you glue it together then this essential element of what modular means (in origami) is lost. Technically I would then consider it a glued multi-piece arrangement rather than a modular assembly."
It is a fine line, but if you have to glue the model for it to hold together, just because it does not have a locking mechanism, that does not change it from being origami to me. Good example of course is the electra - wonderful model, and everyone would call it modular origami...but you have to glue it or it just falls apart. I am working on one right now out of 2 mil copper foil, which I plan to crimp (or maybe solder...not sure yet). You should come to CenterFold origami convention this year and we can argue about it. I love a good argument about semantics. John Scully www.ohiopaperfolders.com