Question

sls: new developments
use the information below to answer the question.
there are three new developments in sls printing related to its price, sizing, and
technology.

price
regular machines cost $18,000 to $32,000. a do - it - yourself desktop model is now
available for $6,500.

size
the build volume is becoming smaller. the powder bin for a full - size industrial printer
is 300 x 300 x 300 millimeters. with many of the new desktop models, the build
volume is almost a third of that size: 100 - 150 millimeters per side.

technology: heat source
with larger sls printers, a co₂ laser provides the heat for sintering the powder
together. the smaller models use an optic fiber system, which is not as hot. there are
also some printers that use a co laser rather than a co₂ laser. this increases the heat
of the beam and creates more detailed parts. this is a good option for highly
specialized projects that require high accuracy and very fine detail.

in general, the build volume for sls is becoming what?
larger
limited
complex
smaller

Explanation:

Looking at the "Size" section of the provided information, it clearly states "The build volume is becoming smaller." We can directly find this information to answer the question.

Answer:

smaller