Before actually running it
3D printing is an additive manufacturing process. It involves a specific workflow roughly divided into four steps:
Modeling: Create a 3D model using software of your choice. Check the volume of the model, as well as the wall thickness, and verify its orientation. You can do this at any stage of the process to help avoid print failures.
Slicing: Here you can validate the surface. Use slicer software to ensure the mesh is manifold (watertight), without holes, and to highlight errors such as inverted normals, all this is known as mesh integrity. The slicer program translates your 3D model into G-code, a language of coordinates that tells the printer exactly how to move and where to deposit material. Review the model layer by layer and check for adequate spacing between parts.
Before printing, remember: Supports are necessary. A printer cannot print in mid-air. The first layer defines the quality of the whole model. Most failed prints happen because the first layer didn't stick to the bed.
Printing: The printer follows the G-code instructions to build the object.
Final touches: Remove supports and sand the object to achieve a clean, finished look.
Common Types of Printers:
FDM (Fused Deposition Modeling): The material used is plastic filament. Polylactic acid (PLA) is the most common and easiest filament to use because it prints at lower temperatures. It is best for useful household items, prototypes, and large parts.
SLA/Resin (Stereolithography): The material used is liquid resin. It is best for miniatures, jewelry, and highly detailed models.