Question

fff: design strength strategies
use the information below to answer the question.
there are four ways you can strengthen a fused filament fabricated piece: infill, stat,
refactoring, and origami.

infill
a 100% infill piece will be strong and rigid. however, it might tend to crack and
separate. 60% infill is best for a fused filament fabrication (fff) piece.

stat
with this strategy, a user breaks apart their model and prints it in three pieces. the
pieces are then bolted together. this is an opportunity to use holes and mechanical
fasteners. this technique overcomes weakness in the z - axis.

re - fracturing
this strategy is similar to the stat technique in that the print is sliced into three
sections. each component is oriented in a different direction or plane. the goal is to
have a strong plane against a weaker plane. depending on the geometry of the piece,
this could reduce the amount of support structure, optimize bridging, or optimize
surface area. the face that is closest to the print bed will be the smoothest.

origami
this technique is used if a user is printing an object such as a cube by unfolding it and
printing it flat. between each edge, there is a layer of 2mm. after removing it from the
bed, it can be folded, hence the term origami. there is a built - in plane - against - plane
structure, which is light. this is a good technique when there is a thin wall and simple
geometry.

a 100% infill piece will be which of the following?
porous and flexible
strong and rigid
hollow and brittle
smooth and transparent

Explanation:

According to the information provided, under the "Infill" section, it clearly states that "A 100% infill piece will be strong and rigid. However, it might tend to crack and separate."

Answer:

strong and rigid