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From YouTube: Lasersaur 3
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A
A
And
the
existing
controllers
right
now
are
how
many
current
rated,
how
many
amps
for
the
oops
I'm
dribbling,
stanford
yeah.
The
stepper
drivers-
are
how
many
amps
from
gecko
we're
only
using
two
amps,
two
motors
but
they're
up
to
seven,
and
you
can
launch
them
and
that's
step,
control,
step
direction
and
enable
type
of
the
interface
the
control
the
stepper
driver,
it's
direction
and
steps.
A
So
we
can
replace
that
with
any
open
source.
Stepper
driver
right,
okay
and
is
there?
How
difficult
is
that
that's
ready
to
retrofit
to
replace
them
we're
using
pins
like
header
pins,
so
the
stepper
drivers
fit
like
right
on
there,
but
you
can
leave
out
those
and
use
wires
and
connect
them
to
any
stepper
driver.
You
want
it's
great
and
I
know
people
have
replaced
these
different
ones
and
I
definitely
know
there
are
people
wanting
to
use
open
source
once
yeah
excellent.
A
A
Here's
the
product
and
these
parts
happen
to
be
what
they're
those
are
actually
parts
for
the
laces
or
yeah
the
mounting
board
for
the
drive
cord.
A
A
Seven
point:
five
centimeters
75,
millimeters,
yeah,
75
millimeters
almost
is
the
focal
length
and
the
more
focal
lengths
you
have
on
the
lens.
The
more
and
the
focus
depth
would
be
with
a
75
millimeter
focal
length.
It
was
gonna,
be
a
don't
know
off
hand,
but
it's
more
than
with
a
50
millimeter
yeah.
Nice.
A
Okay,
tell
us
about
some
of
the
structural
issues.
How
this
thing
is
built
just
in
general,
quick
overview
of
the
build
process,
so
it's
mostly
built
from
aluminum
extrusions.
It's
a
very
standard
parts
used
all
over
the
place
in
the
automation
industry,
and
so
these
are
the
extremes.
Even
the
gantry
is
a
standard
part,
so
there
are
no
specific
rails,
so
we
run
the
engine
right
on
the
extrusions
and
one
reason
why
we
do
it.
A
Another
thing
is
we
have
it
minimally
constrained,
so
we
don't
over
constrain
any
kind
of
motion
which
makes
it
more
forgiving
for
two
impressions
in
the
build,
for
example,
if
those
are
not
perfectly
parallel,
you
know
jam
or
anything
like
that.
Yeah
then,
in
the
back,
we
have
the
laser
tube.
A
We
just
started
off
the
target
on
the
camera
and
the
electronics.
All
the
cables
go
back
here
to
the
electronics
board,
then
a
build
is
to
you
basically
start
with
a
frame
you
assemble
the
frame
together.
What's
the
general
case,
you
assemble
the
outer
frame,
and
then
you
do
the
gantry,
the
movable
parts
and
you
put
the
electronics
in.
A
The
table
then
the
optics
and
the
laser
tube
and
the
shielding
the
surface
at
the
end
yeah,
it's
not
utterly
important.
What
already
build
it?
Okay
and
if
you
were
to
break
this
down
by
modules,
if
you
want
to
pretty
much
document
this
and
modules
you
would.
We
have
some
sort
of
subsystems
grouped
parts
into
subsystems,
wherever
it
makes
sense.
A
So
we
have,
we
have
actually
the
sort
of
the
inner
frame
which
is
the
get
we
call
it
the
gantry
frame,
because
the
laser
tube
is
actually
mounted
to
one
frame
and
all
the
movable
parts
is
one
frame
and
then
there's
the
outer
frame,
which
it
looks
the
same
on
this
system.
But
you
could
technically
use
any
kind
of
outer
frame
that
just
carries
the
whole
inner
frame
outer
frame
and
it
wouldn't
have
to
be
as
high
precision
as
the
standard
build
is.
A
There's
the
electronics
in
the
back
there's
the
laser
system,
which
is
a
laser
power
supply
and
the
laser
tube
and
a
chiller,
and
then
there's
a
an
external
water
chiller
that
basically
cools
the
water
that
flows
through
the
tube
and
then
there's
the
optic
system
which
it's
close
loop,
water.
A
It
uses
flying
optics,
so
there's
lasers
in
the
back
and
the
beam
is
directed
to
the
point
where
you
want
to
have
it.
That's
called
flying
up
with
scuffling
optics
yep,
so
it's
different
from
actually
mounting
the
laser
tube
on
a
rover.
A
A
A
How
do
you
call
this
skin
another
module
or
the
panels?
I
don't
really
haven't
mentioned
those,
and
it
mostly
uses
steel,
0.8,
millimeter
steel
panels
which
are
powder
coated
black,
and
then
the
door
is
made
from
polycarbonate,
which
is
see-through
which
blocks
the
laser
radiation.
So
it's
opaque
at
the
frequency
of
the
laser
yep.
Okay
and
the
light
strip
is
extra
right.