I loved the Pibow design for a raspberry pi case, but found the screws it used exotic and hard to find. So - I redesigned it with lasercuttable snap clips. I would recommend using a stong, somewhat flexible plastic for the clips. I used delrin - and did have to sand them slightly to assemble the case. The main layers can be made of any material, provided it is 1/8" thick. I used acrylic. Do measure - companies often misrepresent materials. This version fits raspberry pi model B. .dxfs are scaled in mm.