Making and working with rigid plastic sheets, however, requires more complex equipment. So we built two presses of different capacities, one of which is heated. We also developed some more unusual tools, including a hand extruder for joining plastic by setting rivets. This method of joining avoids the use of metal fasteners, resulting in monolithic plastic objects that can be recycled without disassembly. It was with this device that we made the sign commissioned by the coworking space and cafe
Letters and Numbers in Yerevan.