Gauge Newsletter January 2019 | Page 35

This design of the 3D model can be created using Computer Aided Design (CAD) tools, various specialized software tools that simplify the design process on computers, tablets or even smartphones. Most popular CAD tools that can be used: AutoDesk 123D Design Blender SketchUp AutoDesk Fusion 360 AutoDesk 3Ds Max AutoDesk AutoCad Slicing Softwares that can be used: Cura Slic3r 3D Slicer Then this design file is sliced into thin layers according to the desired specifications by a slicing software and send it to the printer. The printing process varies by the technology used in the printer. In general, there is a multi-axis robotic arm carrying the 3D printing material which can move anywhere via a 3D axis in space and spread the material. Before spreading out, the 3D printing material should be melted. A laser beam, an electron beam or a plasma arc can be used to melt the material. Finally, the object is getting printed layer by layer according to the design. What Materials Can be Used for 3D Printing? Selecting the right 3D printing material for a project is very important. Many different materials can be used as printing material such as, ABS (Acrylonitrile Butadiene Styrene) plastic PLA (Polylactic Acid) Polyamide (Nylon) Glass-filled polyamide GAUGE Magazine University of Peradeniya PAGE| 33