Beads made of three parts which snap securely together. Different colored filament can be used to make attractive beads which vary in the arrangements of the colors. There is a central pieces and two identical side pieces. Three stl files are included: a central piece, a side piece, and three pieces which together make a bead. OpenSCAD code is included.
Support is not required. Various colors of PLA filament were used. Other materials and printers might require adjusting the positions of the connectors.
Printed with PLA as described above the pieces fit well and "click" when pushed together. The openSCAD code is parametric and smaller or larger beads can be created. A brief description of the method used is included with the code. An example of a smaller bead, about 25 mm in diameter, "small_bead.stl", is an additional example.