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From YouTube: OSE 3D Printer Build Overview
Description
From the 2018 Microfactory Boot Camp.
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A
Roll
it
got
it.
Okay,
welcome
to
the
the
start
of
the
build,
so
we're
going
to
talk
about
how
do
we
build
a
3d
printer
in
the
one
day?
Not
only
one
we're
gonna
build
18
people
18,
that's
good,
that's
the
biggest
number
yet
and
to
do
that
requires
good
coordination.
We've
got
pretty
good
documentation,
there's
parts
that
are
actually
from
projects
that
we
borrow
like
the
hot
end
comes
from
III
D,
which
is
an
openness
to
actually
fully
open
source
design,
extruder
itself
we
borrowed
and
modified
the
one.
A
A
So
it's
it's
a
free
dimensional
space
frame
structure,
which
is
very
strong.
It
doesn't
suffer
from
some
of
the
weakness
issues
or
stability
issues
that
maybe
other
designs
do
because,
like
space
frames
in
thin
space
like
lattice
lattice,
like
structures,
they're
very
strong,
but
they're
supporting
the
next
Y
Z
they're,
very
strong.
So
let's
take
a
look
at
when
we're
looking
at
it
from
the
front.
First
of
all,
we
define
the
back
to
the
front
left
and
right.
We
have
the
X
axes
which
moves
back
and
forth.
A
So
this
machine
is
basically
a
moving
3d
printer
head
in
three
dimensions,
so
yeah.
Somehow
you
have
to
accommodate
three
dimensions.
Two
of
those
dimensions
are
in
the
top
part,
which
is
the
X
and
Y,
and
the
third
axis
is
the
z-axis
means
the
whole
bed
moves
up
and
down
using
the
universal
axis
system.
A
A
The
important
parts
are
that
them
or
station
matters
like
whether
the
motor
is
here
they're
kind
of
nice,
because
geometrically
you
might
like,
for
example,
you
have
components
like
n
stops.
It
just
needs
to
be
that
way.
Otherwise
things
won't
work.
So
if
that
motor
right
there
is
facing
towards
us,
that's
another
detail,
so
it's
on
the
left
hand
side
facing
towards
us.
The
Y
builders
are
on
the
outsides
on
the
backside.
A
The
Z
motors
are
on
the
top
both
front
and
back,
and
that's
that's
also
on
the
same
rods.
The
same
kind
of
rods
here
to
support
the
bed.
So
the
main
parts
are,
you
afraid,
a
set
of
axes
that
heat
bed,
electronics
control?
That's
the
whole
electrical
panel,
which
we
mount
on
a
piece
of
plexiglass.
We
just
drill
holes
with
a
cordless
drill.
After
we
build
a
laser
cutter,
we
can
cut
that
whole
thing
all
the
little
holes
with
the
laser
cutter
there's
the
cable
chain,
which
is
the
cable
routing.
That's
like
the
final
part.
A
If
everything
is
working,
cable
routing,
so
it's
nice,
you
got
one
cable
chain
there,
so
it's
all
the
wires.
All
those
wires
are
going
inside
there
and
all
the
wires
on
this,
because
these
things
are
moving
around
you
can
trip
if
you
didn't
have
that
you
could
rip
up
the
wires
after
some
time,
another
cable
chains.
Now
one
thing
we
we're
not
really
showing
here
is
the
spool
for
filament.
A
What
we
can
do
there
is
actually
extend
another
I
put
another
rod
in
through
the
top,
so
they'll
be,
and
then
on
this
axis
and
the
other
one
so
basically
two
vertical
and
then
like
that
you
could
just
fool
just
hangers
for
on
that.
Interestingly,
the
way
this
is
designed
that
the
rod
goes
all
the
way
up
to
there
there's
an
inch
left,
so
you
can
actually
put
another
rod
for
your
for
your
holders
for
school
alder.
In
this
case,
the
magical
holder
is
it's
hanging
from
the
ceiling.
A
A
A
A
No
I
mean
there's
no
special
parts
at
all
in
this
by
design,
because
we
want
access
for
everybody
to
be
able
to
do
this,
which,
which
is
interesting
in
the
case
that
we're
actually
trying
to
run
an
enterprise
based
on
this,
while
not
using
any
part.
So
it's
like
you
know,
you
could
be
afraid
that
somebody's
gonna
rip
you
off
Wow.
No,
don't
worry
about
that!
A
That's
all,
but
that's
one
of
the
features
we
make
it
easy
for
anyone
to
copy
this
and
I
think
because
of
a
the
modularity
part
and
a
scalability
part
I
think
that
this
will
become
like
the
dominant
player
in
the
marketplace
when
people
when
people
absorb
it
all
over
the
world
I
think
simply
because
of
the
flexibility
I
mean
you
can't
beat
that
flexibility.
You
know
companies
do
like
when
there's
a
3d
printed
company,
they
didn't
really
have
just
a
3d
printer
for
us.
A
A
We
are
about
one-third
one-half
to
one-third
of
the
part
count
of
any
printer.you.
The
unique
part
count,
so
that's
also
mean
means
that
you
can
build
it
very
fast,
other
printers
like
when
they
say
you
build
it
in
five
hours.
They're
not
saying
like,
for
example,
I
made
3d
that
you
can
build
that
in
five
hours,
but
that's
a
lot
of
prepared
parts,
parts
that
are
really
highly
finished
already
for
us,
we're
talking
about
five
hours
and
literally
from
from
scratch
from
things
you
get
from
Amazon
from
mcmaster-carr,
eBay
and
so
forth.
A
The
simplicity
designed
for
simplicity
is,
if
you,
the
universal
axis,
is
identical
for
x,
y&z,
the
rods
for
the
bed
they're
the
same
rods
as
the
as
all
the
other
axes,
same
stepper
motors.
So
essentially,
if
you
know
how
to
build
one
axis,
you
know
how
to
build
three
axes
or
more
axes
or,
however
many
you
want.
That's
the
beauty
of
it,
but
this
kind
of
orientation
we
will
have
the
machine
out
there.
A
A
You
don't
see
that
shirt
extras
on
the
other
side.
If
you
faced
it
this
way,
then,
if
you
built
the
machine
as
this
here,
you
would
miss
out
all
the
chunk
of
the
bed
on
the
far
side.
You
wouldn't
be
able
to
get
get
to
it,
for
example,
so
you
just
need
to
build
everything.
As
is
you'll.
Have
this
exact
model
there
will
have
it
that
you
can
copy
exactly
there's
no
differences
between
what
moving
a
bill,
except
that
we're
going
to
use
16,
14
and
13
inch
frames
for
the
13
inch
frame.
A
What
we're
gonna
do
here
is
to
use
another
one
of
these,
and,
if
you
mount
a
few,
so
we
get
an
extra
inch
same
rods
and
everything
will
get
an
extra
edge
here
by
mounting
one
of
these,
so
that
the
axis
actually
goes
right.
On
top
of
that,
and
therefore
that
means
that
the
frame
is
a
little
smaller,
but
the
area
in
the
X
direction
that
you
can
travel
is
still
the
same.
A
B
A
People
who
have
welded
before
I
think
we
could
do
that.
Otherwise,
maybe
not
right
now,
because
we
have
to
do
everything
in
parallel.
There's
plenty
of
taxes
for
everybody
and
maybe
like.
If
we
do
the
second
bill,
maybe
people
if
they
were
really
insist
on
welding,
we
can
teach
you
the
basics
a
little
bit,
because
we'll
do
the
two
3d
printers,
as
well
as
the
as
we
said,
the
laser
cutter.
A
So,
okay,
so
step
one,
it's
tack,
welding
and
that
will
take
care
of
that
so
basically
you're,
just
just
pretty
much
dots
that
are
like
a
quarter
inch
long
or
something
across
four
places
everywhere.
One
frame
like
this
takes
about
15
minutes.
If
you're
going
at
it,
you
know
what
you're
doing
orientation
of
holes
these
are.
Where
are
those
holes?
Those
are
the
people
see
what
those
holes
are.
Those
armor
that
axes
are
rounded.
How
do
you
mount
the
axes
before
we
used
to
do
it?
A
A
magnetic
mount
people
hated
it
because
the
magnets
are
strong.
They
jump
out
it's
hard
to
put
them
on.
So
what
we
do
for
magnets
we're
going
to
use
just
long
enough
on
the
tool
mouth.
The
way
you
do
it
is
you
get
a
metal
plate,
put
the
magnets
on
the
metal
plate
and
then
put
your
plastic
piece
on
it
with.
So
you
dab
a
little
crazy
glue
on
the
magnets
with
the
plastic
on
you.
Try
to
do
it.
The
other
way
around.
You
got
the
plastic.
A
You
put
the
magnets
in
there
they're
just
gonna
jump
you're,
not
gonna,
keep
them
in
there.
So
you
have
to
attach
the
attachment.
I'll
show
that
I'll
show
that
in
the
workshop
and
we'll
get
a
good
video,
because
that's
a
good
good
instructional
we're
not
using
the
magnets
on
axes
because
that's
actually
it
takes
a
little
longer
and
people
hated
it.
A
So
we're
just
doing
a
single
bolt
hole.
Quarter-Inch
the
frame
pieces
just
get
a
bolt
through
it
like
a
thirty
millimeter
bolt.
Those
are
the
holes.
So
when
we
do
the
frames
just
just
for
reference
for
everybody,
these
are
the
mounting
points
for
the
z-axis.
These
are
the
mounting
points
for
the
y-axis.
Does
that
make
sense.
A
Because
whoever
did
it
make
sense
of
the
z-axis
is
here
in
the
front
or
better.
Yet,
let's
look
at
the
real
picture
that
one
hole
there.
You
see
that
that's
going
through
the
frame,
it's
going
through
the
plastic
piece
of
through
the
frame,
so
that
the
universal
axes
and
design,
so
it
can
be
mounted
magnetically
or
through-hole
like
that
or
it's
got
another
hole.
A
little
nuts
put
in
a
quarter
inch
nut
and
you
can
actually
screw
in
a
bolt
there,
so
he
can
attach
a
plane
to
there.
A
That's
how
we
attach
the
X
to
the
Y.
The
X
has
enough
little
nut
inside
of
it,
so
you
bolt
it
through
the
Y.
Another
side
won't
get
more
into
that
details,
but
the
point,
the
relevant
point
is,
is
going
to
be
a
hole
there
through
the
frame
holder
through
the
frame.
So
when
you're
welding
it
up
make
sure
you
don't
put
like
the
frame
piece.
That's
got
the
holes
like
on
the
side,
for
example,
because
there's
a
unique
part
count
of
three
on
the
frame.
A
One
is
the
plane,
just
a
plain
plain
square:
no
holes
one
has
the
two
holes
in
the
middle
for
the
Z
and
the
other
one
has
the
two
holes
for
the
Y's
and
they're
in
different
locations,
this
one's
in
the
middle
of
of
it.
These
ones
are
on
the
ends
because
the
axis
of
attached
at
the
ends
so
using
this
method,
you
can
attach
it
and
make
any
size
frame.
You
can
attach
things
you
can
do
like
multiple
axes
like
you
can
do
like
one
above
the
other.
A
You
want
more
strength
for
it
to
be
a
larger
machine.
I
think
with
this
the
way
it
is
right
now
you
can
possibly
get
up
to
like
3
feet,
which
is
what
we're
gonna.
Do
we're
try
our
machine
on
on
the
last
day
as
a
just
a
single
one.
If
we
see
that
just
bending
too
much
and
it's
not
working,
we're
gonna
have
to
fix
it,
but
even
if
it's
that's
not
necessarily
a
bad
thing,
because
we
have
automatic
bed
leveling
so
think
about
this.
A
Would
this
work
you
tell
me
you
got
a
probe
there
on
on
extruder.
So
that's
the
that's!
The
extruder
you
see
a
little
slip
of
plastic
coming
out
of
it.
He's
got
a
high
probe
that
detects
the
metal
there's
a
metal
a
little
plate
with
a
high
performance
plastic
cover
on
it's
called
Pei
the
complex
chemical
name.
It
works
such
as
like
when
you
heat
it
up
the
prints,
stick
to
it
when
it
cools
off.
They
come
right
off.
It's
really
nice.
Otherwise,
you'd
have
to
be
fighting
trying
to
get
your
print
off
the
better.
A
If
you
use
glass
or
something
else
or
if
you
use
like
painters
tape,
people
use,
that's
doable.
Painters
tape
works.
Well,
you
don't
need
to
keep
the
bed,
but
it's
it
could
be
if
you
have
a
big
flat
surface.
Good
luck,
trying
to
get
that
off.
You're
gonna
use
a
lot
of
force.
You're
gonna
rip
the
tape
off,
and
you
don't
have
to
put
the
tape
on
again
here
when
it
cools
off.
It
comes
right
off
the
bed.
Very
nice!
Okay,
if
you
have
this,
what's
the
limit
of
scalability
here,
what?
A
If
you
have
a
super
long
axis
and
drooped
down
by
an
inch?
Would
that
still
work?
Let's
think
about
it?
So
that
detector
is
making
the
the
bed
go
up
and
down
based
on
where
the
level
of
that
of
the
head
is
so
if
that
thing
is
drooping
I
mean
obviously
it's
gonna
be
lower
in
the
middle
and
higher
in
the
ends,
but
the
bed
is
adjusting
for
that.
A
So,
even
if
you
have
a
massive
drew,
it's
not
gonna
matter
in
principle,
so,
for
which
reason
we
can
try
that
on
the
last
day
day
number
seven,
we
can
try
the
the
droopy
axis,
because
if
you
get
to
three
feet
you
might
see
a
visible,
maybe
I'm,
not
sure
my
you
might
not
even
see
it.
It's
gonna
be
so
minor,
so
we
shouldn't
definitely
try
it
and
if
you
have
any
issues
with
that,
like
we
see
that
it's
just
messing
up
for
some
reason,
we
could
double
up.
A
That's
if
you
can
stack
like
two
of
them
together,
we
might
want
to
stack
like
two
vertically
one
under
each
other.
You
can
do
both
and
no
no
I
would
say,
probably
stuck
and
long
piggyback
to
each
other
is
probably
easier,
because
if
you
do
that,
you
need
another
bolt
hole
set.
You
know
we
could
probably
try
it
too,
but
the
point
is
that
you
can.
A
You
can
scale
this,
and
this
is
the
these
rods
are
eight
millimeters
one
sec
once
again,
you
can
make
them
larger
and
our
goal
is
actually
to
do
up
to
two
inch
rods
at
least
93
with
3d
printed
plastic
pieces
around.
Just
like
that.
So
we
get
a
high-performance
axis
at
the
cost
of
scrap
plastic
and
metal
rod,
medalists
$1
a
pound,
so
a
shaft
3
inch,
shaft
cost
like
20
bucks,
a
foot
20,
maybe
30
bucks,
a
foot.
A
We
gets
expensive
for
a
big
machine,
but
now
you're
talking
about
like
yeah
heavy-duty
CNC
milling
those
machines
run
a
lot
of
money,
so
we
can
do
it
low
cost.
Okay,
so
that's
the
orientation
of
the
frame.
That's
I
think
that's
about
all.
We
need
to
say
about
the
frame.
We're
gonna,
pull
understanding
of
it.
A
All
right,
so
we
said
that
there's
three
steps
tacking
well
grind
it.
We
might
want
to
grind
like
there's,
spatter
or
just
some
rough
spots.
We
can
run
some
unevenness
and
spatter
or
like
if
the
bead
got
the
really
sharp
or
whatever
and
last
step
is
paint.
So
just
some
regular
spray
paint.
We
can
do
that,
so
it's
black,
like
the
black
beauty
in
the
other
picture
there,
okay.
A
So
this
is
what
the
universal
access
looks
like
and
so
we're
going
to
work
in
parallel
on
the
frames
and
on
the
axes
and
what
we
want
to
do
as
soon
as
the
frames
are
ready.
You
want
to
start
mounting
two
axes.
We
don't
want
to
wait
till
we
build
all
the
axes
in
case.
We
have
something
wrong.
So
as
soon
as
we
build
the
first
axis,
ideally,
we
have
a
frame
to
mount
it
to.
We
already
have
six
frames
on
the
six
frames
that
we
do
have
they
do
not
have
holes.
C
A
The
top
bolt
you
don't
see
from
the
side
here,
but
it's
a
top
bolt
going
through
the
frame.
How
far
is
it
from
the
top?
Well
just
enough,
so
that
the
rods
are
below
that
you
know
the
top.
So
it's
like
a
couple
of
inches
down
the
bolt
hole
is
about
right
there,
so
we're
going
to
just
just
measure
it
off
the
machine.
A
A
Each
axis
so
the
x
axis
has
the
has
a
tool
mounted
on
it,
so
we
can
do
the
magnetic
things
we
want
to
do
first,
because
the
glue
takes
like
a
few
seconds,
not
too
long
like
a
minute
or
two,
but
it's
good
to
do
the
magnetic
mount
so
we're
ready
for
this
tutor
later
I'll
show
you
that
Oh
I'll
demonstrate
all
that
in
the
shop
and
you
suggest
yourself
make
the
carriages
carriages
this
piece
right
here.
That's
the
motor
piece,
that's
the
idler
piece!
A
This
is
actually
the
original
axis
that
either
piece
we
shrunk
it
down
to
half
of
that.
So
it's
twice
as
fast
to
print.
We
just
don't
need
that
plastic
there.
That's
just
holding
the
rods
and
there's
a
little
bearing
in
there
inside
there,
but
we
have
this
piece.
That's
that's
time
to
have
to
short
emphasize
it's
the
either
piece
so
make
me
purchase
first
they're,
the
easiest.
You
put
four
bearings
in
there,
the
linear
bearings,
so
their
shafts
slide
in
those
barriers.
A
Now
we're
going
to
use
plastic
barriers,
here's
the
deal,
we
use
the
Mel
bearings
and
then
we
push
the
machine
to
the
limits
and
it
turns
out
that
so
we're
running
like
we're,
optimizing
the
speed
and
running
at
like
400.
Oh
snap,
400
percent
of
standard
speed,
so
we're
really
beefing
it
up.
We
found
that
if
you
don't
well
the
rods
get
scratched.
A
Okay.
So
that
was
the
result.
I
found
out
just
like
three
weeks
ago,
cuz
we're
trying
to
push
the
speed.
So
what
we're
gonna
do
is
we're.
Gonna
use
plastic
barriers
there,
this
glide
plastic
type
thing
actually
more
expensive,
they're
supposed
to
be
there
to
be
very
quiet
with
the
with
the
metal
ball
bearings
these
linear
bearings.
They
make
a
lot
of
noise.
Actually,
so
it's
it's
better
for
noise,
it's
quieter
and
it
should
last
forever.
That's
not
going
to
eat
up.
A
A
So
for
the
American
scenario,
it's
harder
to
get
eight
millimeter
rods,
but
you
do
get
eight
millimeter
rods
in
this
so-called
twelve
fourteen
L
steel,
which
is
this
ultra
machinable
steel,
but
it
would
get
eaten
up
if
you
run
fast.
If
we
go
slow
or
fine,
we're
gonna
push
the
limits
of
this.
So
we've
got
these
plastic
barriers.
You
ain't
worth
cent
okay,
so
make
carriages.
That's
the
carriage
the
pegs
go
later.
They
hold
the
belt.
A
I'll
show
you
that
mechanism,
it's
pretty
cool
mount
police
have
motor,
so
the
motor
we
take
them
and
just
put
the
pulley
on
that
and
there's
a
little
set
screw
I'll
demonstrate
after
you
have
the
motor
on
that
the
pulley
on
a
motor.
You
can
make
this
motor
piece.
All
these
pieces
basically
have
like
these
four
four
of
these
six
millimeter
bolts
through
them
with
a
another
side,
we're
gonna
have
cordless
drills.
A
We
cut
up
some
of
the
Allen
wrenches,
so
you
can
put
an
Allen
wrench
into
the
cordless
drill
to
use
as
a
power
drill
on
the
lowest
setting,
otherwise
you'd
break
the
plastic
will
show
but
yeah.
Basically,
all
these
give
them
give
the
bolts
through
them.
This
one
definitely
asked
the
mill
one
that
one,
the
middle
is
not
important
because
there's
nothing
there
on
this
one
there's
an
idler.
It's
a
little
pull
pull
the
idler
they're
a
little
bearing
thing
in
there.
A
So
we
made
the
motor
piece
made.
Idler
piece
cut
the
belts,
the
formula
for
the
belts
is
2,
X,
plus
2
length
of
the
thing
which
is
1416
or
13.
So
it
takes
take
twice
that
plus
2.
So
for
16
it's
going
to
be
34
16
times,
2
plus
2
for
13.
In
total,
you
about
28,
so
I
need
3
different
about
lengths.
That's
that's
the
formula
that
works
slip
rods
into
the
idler
piece,
so
put
the
rods
in
there
and
tighten
it
down.
That's
the
part.
A
We're
not
gonna,
just
we're
not
just
that
side
later,
because
we're
gonna
have
to
have
an
exact
fit,
so
you
can
climb
down
one
part
and
keep
that
loose,
but
just
don't
tighten
all
the
bolts
down.
We'll
see
you
later
so
after
you
slip
the
rods
into
the
other
piece
fix.
It
then
mount
the
other
piece
so
slip
on
the
the
carriage
and
the
motor
piece
make
the
whole
axis
just
keep
the
motor
piece
loose
and
this
one's
already
loose.
A
That's
a
sliding
thing,
insert
the
belt
and
then
insert
the
Peggy's
loosely
just
to
keep
any.
So
that's
what
we
got
to
do
the
belt,
the
axis
and
the
frames.
If
we
can
do
that
in
the
next
near
while
then
we'll
be
good,
we'll
talk
about
the
rest
of
the
machine
later,
but
that's
so
what
we
got
to
do
now
is
bring
I
got
bring
down
the
machine
to
the
shop.
Let's
see,
how
do
we
want
to
organize
who
wants
to
well
who's
welded
before
anyone
else.
A
A
A
The
reason
is,
we
want
to
get
the
frames
up
as
soon
as
possible
because
we
want
to
mount
the
first
acts
as
we
make.
We've
mounted
right
to
the
right
to
the
frame.
I'm
gonna
work,
one
by
one
so
that
we
verify
like
you,
can
see
it.
I
can
quality
control,
it
all
be
down.
The
rope
it'll
be
obvious
whether
it's
right
or
wrong,
like
maybe
your
rods,
are
too
long.
The
bolt
is
in
the
wrong
place.
A
You'll
shake
all
that
down
without
going
further,
so
the
next
one
you
build
you'll,
get
it
right
since
of
self
verification
weapons.
That's
it
any
questions
for
people
in
welding,
the
whole
division
on
other
ones.
We
can
get
people
immediately
on
make
carriages.
Mount
William
motors
make
motor
Peas
these
two
three
five,
six,
those
we
can
get
a
lot
of
people
on.
A
So
let's
go
down
there
and
just
get
masses
of
people
on
then
we'll
get
the
Machine
down
so
that
by
that
time
you
know,
you're
working
on
these
yeah
take
a
little
bit
of
time.
But
this
is
the
universal
axis
and
it's
pretty
simple,
so
Andre
when
we
built
the
scene,
see
Sir
Camille
identical
axis.
We
had
more
of
them
because
we
haven't
we
needed
more
strength,
and
but
the
design
is
the
same.
Yeah.
D
A
You
have
more
access
mass,
holding
the
same
weight,
so
you're
gonna
like
for
example,
if
you
have
the
extruder,
which
is
pretty
heavy
two
axes
will
make
it
will
make
it
support
it
better.
That's
not
a
ridiculous
question
because
you
would
say
that
while
this
already
has
its
own
weight,
what
are
you
adding
by
adding
more
axes
while
you're
supporting
another
part,
that's
more
heavy
yeah
and
then.
A
Does
that
answer
that
and
then
in
in
freecad
there's
a
workbench
called
finite
element:
analysis
where
you
can
just
actually
do
that
you
can
see.
Okay,
if
I
have
one
one
set
of
rods
once
an
axes
versus
two,
you
can
actually
say:
okay,
push
push
down
on
that.
How
far
will
it
deflect?
That
is
something
we,
as
amateurs
can
do
like
right
now,
because
of
functionality
exists
in
freak
out
yeah,
more
questions.
A
The
magnets
are
gonna,
hold
the
the
head.
The
printhead
is
a
magnet
magnetically
attached,
so
you
can
remove
it.
You
can
put
on
another
head,
such
as
a
laser,
so
it's
a
quick
method
of
quick
exchange.
If
you
just
take
it
right
off,
it'll
be
like
you
know,
10
20,
20
pounds,
or
so
you
got
it
just
need.
Some
force
has
to
be
strong
enough.
So
when
it's
moving
around
and
could
be
moving
around
pretty
fast,
it
doesn't
fall
off.
A
That's
about
10,
20
pounds
or
so
yeah,
and
before
you
see
the
artifact
in
the
bolt
holes
they're
still
valid.
We
can
slip
with
magnets
on
it
and
if
you
want
to
make
a
refrigerator
holder,
you
can
do
that,
but
that
the
strength
on
those
magnets
they're
each
about
eight
pounds
against
metal.
So
if
you
know
2,
4,
6
7
times
8,
like
50
60
pounds
of
hole,
that's
plenty
to
hold
this
axis
against
the
frame
if
you
got
a
metal
frame.
A
So,
while
we're
just
using
the
ball
through
its
also
remains
more
spits
that
we
more
secure
because
the
trick
is,
if
you
don't
get
the
magnets
flat
but
they're
like
you
know
a
little
bent
on
an
angle,
then
I'm
gonna
have
the
full
force
or,
if
you
get
dirt
under
the
magnet
you're
gonna
have
full
force.
So
you
got
to
be
more
careful
about
yeah.
E
B
B
A
E
A
A
Biggest
challenge
right
now
is
getting
the
right
amount
of
dab
of
glue
on
the
magnets,
because,
if
you
put
too
much
it
takes
a
long
long
time,
I
Drive-
you
can
put
two
little
magnets
in
and
come
off
with
the
plastic
and
now
this
time
the
print
quality
is
better
than
last
time.
So
we
should
that
those
issues
should
be
addressed.
A
Yeah
the
other
piece,
let's
the
belt
right
on
it,
it's
a
bearing
inside
there,
and
so
you
need
another
attachment
point
for
the
development
belt
pulls
on
on
the
carriage,
depending
on
where
the
peg
is
that
side
of
that
side,
a
motor
spinning
in
one
direction
will
move
in
one
way
or
the
other,
and
we're
not
going
to
even
worry
about
that,
because
we
found
that
nobody
can
do
that
in
practice.
There's
too
many
things
to
keep
track,
so
we're
not
paying
attention
to
the
location
of
the
peg
being
in
that
hole
versus
that
bowl.
A
You
can
only
go
in
one
hole,
but
it
will
go
here.
You
don't
worry
about
it
being
this
way
versus
180
degrees,
because
when
we
do
in
an
electronics,
if
this
flip,
then
you
flip
the
plug
the
other
way,
it's
easier
to
flip
a
plug
than
to
flip
that.
So
that's
actually
a
lesson
from
that
Sun
weed
what
we
did
last
time
was
well.
One
of
the
early
workshops
is.
A
We
were
flipping
this
because
we
said
okay,
let's
not
mess
with
electronics,
because
we
will
never
figure
it
out
well,
in
practice,
it's
much
easier
to
flip
a
plug,
as
you
can
see
that
more
differently
here
it's
taken
apart,
will
take
you
much
longer
than
switching
a
plug
in
now.
So
it's
a
matter
of
practice
and
in
practice,
because
I
mean
there's
like
five
axes
and
you've
got
so
many
moving
parts
here.
You
know
you
think
about
all
these
things.
A
It's
actually
very
difficult
for
humans
to
get,
even
if
you're,
looking
at
the
right
machine
there,
it's
actually
difficult
to
put
it
together
that
it's
identical
the
first
workshop.
We
had
one
one
person
out
of
12
copy
the
machine,
exactly
those
are
just
the
results
we
had
and
we're
not
talking
like
dumb
people,
we're
saying
that
there's
a
lot
of
lot
of
things.
You
have
to
keep
in
mind,
but
we
can
fix
the
orientation
issues
there,
but
the
geometry
in
issues
we
can't
offense.