ACM Transactions on Graphics,
Год журнала:
2024,
Номер
43(6), С. 1 - 17
Опубликована: Ноя. 19, 2024
Tomographic
Volumetric
Additive
Manufacturing
(TVAM)
is
an
emerging
3D
printing
technology
that
can
create
complex
objects
in
under
a
minute.
The
key
idea
to
project
intense
light
patterns
onto
rotating
vial
of
photo-sensitive
resin,
causing
polymerization
where
the
cumulative
dose
these
reaches
threshold.
We
formulate
pattern
calculation
as
inverse
transport
problem
and
solve
it
via
physically
based
differentiable
rendering.
In
doing
so,
we
address
longstanding
limitations
prior
work
by
accurately
modeling
correcting
for
scattering
composite
resins,
non-symmetric
vials,
supporting
unusual
geometries.
also
introduce
improved
discretization
scheme
exploits
ray
tracing
operation
mitigate
resolution-related
artifacts
prints.
demonstrate
benefits
our
method
real-world
experiments,
computed
produce
prints
with
fidelity.
Additive manufacturing,
Год журнала:
2024,
Номер
87, С. 104232 - 104232
Опубликована: Май 1, 2024
Additive
manufacturing
has
revolutionized
the
way
prototypes
and
one-off
parts
are
produced,
but
standard
additive
techniques
such
as
material
extrusion
or
vat
photopolymerization
still
present
various
issues
like
high
print
times
defects
due
to
layer-by-layer
nature
of
process.
Computed
axial
lithography
(CAL),
a
novel
volumetric
technique,
solves
many
associated
with
traditional
3D
printing,
staircasing
long
printing
times.
However,
state
art
CAL
requires
complex
optical
setups,
limiting
access
working
machine,
greatly
reducing
pace
new
technologies
being
adapted
CAL.
The
Liquid
Crystal
Display-based
computed
(LCD-CAL)
setup
here
presented
keeps
advantages
CAL,
utilizes
single
lens
an
LCD
for
its
setup.
By
moving
LCDs,
machine
cost
is
reduced,
extremely
simplified
LCD-CAL
makes
widely
accessible.
To
highlight
versatility
developed
LCD-CAL,
we
design
characterize
two
high-viscosity
resins
based
on
highly
crosslinked
bio-based
acrylates,
respectively.
This
work
paves
widespread
adoption
by
making
low
cost,
speed
printer
available.
ACM Transactions on Graphics,
Год журнала:
2024,
Номер
43(6), С. 1 - 17
Опубликована: Ноя. 19, 2024
Tomographic
Volumetric
Additive
Manufacturing
(TVAM)
is
an
emerging
3D
printing
technology
that
can
create
complex
objects
in
under
a
minute.
The
key
idea
to
project
intense
light
patterns
onto
rotating
vial
of
photo-sensitive
resin,
causing
polymerization
where
the
cumulative
dose
these
reaches
threshold.
We
formulate
pattern
calculation
as
inverse
transport
problem
and
solve
it
via
physically
based
differentiable
rendering.
In
doing
so,
we
address
longstanding
limitations
prior
work
by
accurately
modeling
correcting
for
scattering
composite
resins,
non-symmetric
vials,
supporting
unusual
geometries.
also
introduce
improved
discretization
scheme
exploits
ray
tracing
operation
mitigate
resolution-related
artifacts
prints.
demonstrate
benefits
our
method
real-world
experiments,
computed
produce
prints
with
fidelity.
