The SCRU is the cornerstone of MakeDo inventions. Students can use the MakeDo SCRUs to connect up to three layers of corrugated cardboard and, in most situations, to quickly and firmly hold their creations together.
The SCRU+ is ideal in situations in which students need to connect 4-6 layers of corrugated cardboard. It can also be used to attach 3D printed MakeDo parts, such as hinges and angle brackets.