Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(26)
Published: July 3, 2023
The
field
of
biomedical
design
and
manufacturing
has
been
rapidly
evolving,
with
implants
grafts
featuring
complex
3D
constraints
materials
distributions.
By
combining
a
new
coding-based
modeling
approach
high-throughput
volumetric
printing,
is
demonstrated
to
transform
the
way
shapes
are
designed
fabricated
for
applications.
Here,
an
algorithmic
voxel-based
used
that
can
generate
large
library
porous
structures,
auxetic
meshes
cylinders,
or
perfusable
constructs.
deploying
finite
cell
within
framework,
arrays
selected
designs
be
computationally
modeled.
Finally,
schemes
in
conjunction
approaches
multi-material
printing
based
on
thiol-ene
photoclick
chemistry
fabricate
heterogeneous
shapes.
Collectively,
design,
fabrication
techniques
toward
wide
spectrum
products
such
as
actuators,
grafts,
tissue
disease
models.
Optics Express,
Journal Year:
2023,
Volume and Issue:
31(4), P. 5531 - 5531
Published: Jan. 23, 2023
Tomographic
volumetric
additive
manufacturing
(VAM)
is
an
optical
3D
printing
technique
where
object
formed
by
photopolymerizing
resin
via
tomographic
projections.
Currently,
these
projections
are
calculated
using
the
Radon
transform
from
computed
tomography
but
it
ignores
two
fundamental
properties
of
real
projection
systems:
finite
etendue
and
non-telecentricity.
In
this
work,
we
introduce
ray
tracing
as
a
new
method
computing
in
VAM
demonstrate
high
fidelity
non-telecentric
higher
systems,
leading
to
3x
increase
vertical
build
volume
than
standard
method.
The
introduced
here
expands
possible
configurations,
enabling
faster,
cheaper,
printing.
Additive manufacturing,
Journal Year:
2023,
Volume and Issue:
66, P. 103459 - 103459
Published: Feb. 20, 2023
Volumetric
additive
manufacturing
has
a
number
of
advantages
as
compared
to
conventional
methods,
but
it
can
still
suffer
from
premature
sedimentation
in
which
the
part
sinks
down
during
printing
process
-
especially
final
seconds-
affecting
method's
geometric
fidelity,
resolution,
and
limits
its
applicability
only
high-viscosity
resins.
In
this
study,
numerical
model
been
developed
investigate
effect
different
material
properties
parameters
on
printed
part.
After
qualitative
validation
model,
role
resin
viscosity
phenomenon
is
elucidated,
shown
how
rise
cross-section
ratio
geometry
container
reduce
sedimentation,
while
an
increase
curing
time
container's
rotation
velocity
escalate
sinking
Furthermore,
found
that
raising
density
at
end
print
will
worsen
mitigate
effect,
respectively.
Finally,
orientation
explored.
The
herein
illuminates
new
avenue
for
better
understanding
physics
taking
place
volumetric
manufacturing,
essential
further
improve
technology.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(26)
Published: July 3, 2023
The
field
of
biomedical
design
and
manufacturing
has
been
rapidly
evolving,
with
implants
grafts
featuring
complex
3D
constraints
materials
distributions.
By
combining
a
new
coding-based
modeling
approach
high-throughput
volumetric
printing,
is
demonstrated
to
transform
the
way
shapes
are
designed
fabricated
for
applications.
Here,
an
algorithmic
voxel-based
used
that
can
generate
large
library
porous
structures,
auxetic
meshes
cylinders,
or
perfusable
constructs.
deploying
finite
cell
within
framework,
arrays
selected
designs
be
computationally
modeled.
Finally,
schemes
in
conjunction
approaches
multi-material
printing
based
on
thiol-ene
photoclick
chemistry
fabricate
heterogeneous
shapes.
Collectively,
design,
fabrication
techniques
toward
wide
spectrum
products
such
as
actuators,
grafts,
tissue
disease
models.
