A 3D printer simplifies and accelerates the process of making prototypes and finished goods.
Stratasys manufactures several lines of machines, including 3D printers and their big brothers, 3D production systems (or production 3D printers). At the core of each system is fused deposition modeling, or FDM Technology™.
Stratasys FDM machines create functional parts by extruding and depositing thermoplastic materials in layers. This guide will walk you step by step through the FDM process.
1. Pre-processing: “slicing” or sectioning CAD design into layers:
In operation, your first step is to import a design file, pick options, and create slices (layers). The preprocessing software calculates sections and slices the part design into many layers, ranging from 0.005 inches (0.127 mm) to 0.013 inches (0.3302 mm) in height. Using the sectioning data, the software then generates “tool paths” or building instructions, which will drive the extrusion head. This step is automatic when using Catalyst EX. Next, send the job to the 3D printer.
2. Production: the layering process Press “print” to start the building process.
Two materials, one to make the part, and one to support it, enter the extrusion head. Heat is applied to soften the plastics, which are extruded in a ribbon, roughly the size of a human hair. Alternating between part material and support material, the system deposits layers as thin as 0.005 inch (0.13 mm).