I would like to know more about how to connect pieces of gypsum plaster effectively, without space between them. I have a few pieces of gypsum plaster (around 10 mm thickness, 20 cm width, 30 cm height) and would to connect them and form a simple box. I was thinking about some kind of steel clamps which could effectively connect the pieces, but I am not sure.
I am interested in connecting gypsum plaster board pieces without using screws e.g. without destroying the material in any way. It is about a model, which could be disassembled and reassembled again. That is why I first though about some steel clamps or some steel frames in which the parts could be inserted and removed.
Any ideas or where to look?