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 a few. 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 sinter the powder in the x and y directions. the bio lowers, and the cycle repeats until the item is complete.
who sets the heating - up cycle, print time, and cool - down process for sls prints?
the operator
the customer
the distributor
the manufacturer

Explanation:

We refer to the "Process" section of the given information, which states "The heating - up cycle, print time, and cool - down process are set by the manufacturer."

Answer:

the manufacturer