Appendix C. Filament Options for RepRap Printers
Many different materials have become available for 3D printing, and more efficient and exotic filaments are bound to become available in the near future. This list is by no means an exhaustive review of the 3D filaments available, but it does provide a variety of materials that can offer enormous possibilities for home or small business manufacturing.
All of the listed filaments are available in 3-mm and 1.75-mm diameters. Considering the worldwide possibilities of acquiring filaments, the best source may be derived, depending on your geographical location, from the list at http://reprap.org/wiki/Printing_Material_Suppliers.