Which feature allows dual extruder printers to use two different nozzle diameters simultaneously?

Dual material printing is the feature that allows dual extruder printers to utilize two different nozzle diameters simultaneously. This capability is essential for achieving varied layer resolutions and material properties in a single print job. By using nozzles of different diameters, a printer can efficiently print both finer details and larger sections of a model, taking advantage of the specific characteristics of each material.

For instance, a larger nozzle can extrude more material quickly, ideal for printing bulk areas, while a smaller nozzle ensures precision for intricate details. This combination enables the printer to optimize the printing process, balancing speed and detail, which is crucial for producing high-quality finished products.

While the other options appear related, they serve different purposes. Adaptive layer height focuses on adjusting the layer thickness dynamically during a print to improve surface finish or speed. Variable nozzle technology theoretically refers to adjustable nozzle characteristics, but that is distinct from dual material usage strategies. The filament switching mechanism pertains to changing materials during the print process but does not inherently involve the simultaneous use of different nozzle diameters.