Question

sls: printer parameters
use the information below to answer the question

surfaces
the parameters that dictate the surface finish begin with the laser size. the layer height is also a factor. the other influence is the geometry and size of the powder particles. a finer powder will yield a smoother, more refined finish. a coarse powder may have a different effect on the texture of the surface.

most sls surfaces have a matte finish. in general, they are not glossy or shiny and have a slightly \grainy\ texture. the smoothest portion of a build will be found nearest to the print bed.

process
the process is fairly automated, with the operator only being responsible for arranging the files within the print space and removing the prints once they are finished. the heating - up cycle, print time, and cool - down process are set by the manufacturer.

accuracy
sls printing is a particularly accurate process for complex geometries, with a tolerance of 5 μm. dimensional accuracy and detail will be quite fine.

operation
a layer of powder is spread across the print bed. the printer will then shoot the laser beam at a mirror that will scatter the powder in the x and y directions. the bin lowers, and the cycle repeats until the form is complete.

in terms of the sls process, where will the smoothest portion of a build be found?

nearest to the laser scanner

the top layer

nearest to the print bed

the build’s interior

Explanation:

From the "Surfaces" section of the SLS Printer Parameters, it is stated that "The smoothest portion of a build will be found nearest to the print bed."

Answer:

nearest to the print bed