2x2x1 Twisty Puzzle

This is a 2x2x1 puzzle,its one of the easiest so it is suitable for everyone.In order to make one yourself,you will need to print 3 corners,1 core and 1 internal pieces,but the names of the files already have that information.You will also need a M3 screw and a spring for it is pretty recomended.I havent print it but i used it as the base for my 2x3x4 and i can guarantee it turns pretty good.