3D printing techologies
All 3D printing technologies are based on the same principle, which involves gradually layering material on top of each other. However, even in the present day, there is no universal method suitable for all applications. It is necessary to consider what we expect from the printer and what we want to print. The most well-known 3D printing technologies can be divided into three categories based on the form of material printing and its processing:
- Material in the form of filament – material is extruded through a heated nozzle, including FDM and FFF. These can be considered synonymous.
- Liquid material – each layer is cured by a light beam (UV or DLP). This category includes SLA.
- Material in the form of fine powder – material is fused using a laser. Representative technologies include SLS.
1. FDM/FFF
1.2. Delta
The extruder on the printer is suspended by three arms, which are joined together precisely at the extruder's location. The advantage lies in the movements performed along the Z-axis. On the contrary, the disadvantage is the requirement for high-precision calibration and construction of the printer, as well as demanding calculations for the motor movements of the individual arms.
Source: Zaklad do 3D Tisku s Jozefom Prušom – Jozef Pruša