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From YouTube: Heavy Duty CNC Mill - Design Session 3
Description
See design docs at https://wiki.opensourceecology.org/wiki/2%22_Universal_Axis
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A
There
yet,
but
it'll
come
on
soon,
well
our
universal
access
in
very
essential
form.
Basically,
this
is
the
approach
of
wikispeed,
a
set
of
modules
that
have
well-defined
interface
points.
So
the
interface
points
are
defined
by
these
two
steel
rods
that
go
through
at
a
certain
distance
from
each
other
parallel
and
once
we
know
that,
then
we
can
build
our
parts
around
this
and
hopefully
build
the
complexity.
We
need
to
get
the
functionality
required.
A
So
can
we
start
with
the
motor
we
know
from
the
other
universal
access?
We
have
one
here
that
the
motor
motor
differently,
then
motor
actually
has
to
plant
with
more
holes
on
there.
There
need
to
be
some
holes
to
hold
the
clamshells
together
and
there
may
need
to
be
some
poles
for
attaching
onto
the
penis
most
likely.
So
where
should
we
see
on
the
side
to
the
top
or
the
end?
Those
are
the
requirements.
Maybe
we
can
discuss
with
Martin
and
because
he
has
a
little
more
experience
know
that
yes,.
A
B
B
Do
you
see
that
motor
piece
is
gonna,
be
we're
talking
about
the
motor
piece
right,
yeah,
okay,
so
one
thing
about
the
motor
pieces
that
you're
attaching
a
stepper
motor
through
a
coupler
to
an
eight
millimeter
shaft.
The
coupler
goes
from
ten
to
eight
millimeters.
Now
these
are
the
details
you
need
to
consider
for
how
wide
this
thing
is
gonna
be
and
how
big
the
hole
for
driving
up
the
pulleys
and
belts
has
to
be
so.
B
You're
gonna
have
to
have
a
hole
opening
for
that
peace
between
the
two
shafts
that
allows
the
belts
to
come
out
and
it
has
to
accommodate
three
of
the
pulleys
and
if
you
want
to
go
to
what
the
build
materials
looks
like
for
that
on
a
two
inch
universal
axis
page,
you
can
get
a
feeling
for
what
okay,
as
you
list,
I
added
a
BLM
as
used,
which
shows
the
belts
pulleys,
eight
millimeter,
bearings,
there's
gonna,
be
an
eight
millimeter
bearings
ii
support
bearing
right
there,
eight
millimeters
and
then
a
shaft
coupler,
which
is
also
shown
in
the
bill
of
materials.
B
Shaft
coupler.
First
item
ten
to
eight
millimeters
stepper
motors
there.
It's
already
in
CAD,
I
think
Aiden's
working
on
a
coupler
stepper
drivers,
that's
for
later
bearings
bells.
So
that's
the
that's
the
motor
side
and
there
are
some
more
requirements
listed.
Because
would
we
theoretically
talk
that
you
start
with
steps
for
the
design
design
process?
You
need
your
requirements,
specifications
break
down
the
parts,
role
allocation
and
then
finally
adding
parts
to
a
part
language,
so
we're
actually
iterating
through
all
those
steps.
Right
now.
B
C
B
B
B
Okay,
we're
covering
everything
so
two
two
inch
rods.
We
all
we
have
to
consider
the
practicality
of
what
the
rods
that
we
have
are.
We
have
four
pieces
of
ten
foot
so
the
most
effective
way,
if
we're
going
to
create
six
axis
axes
like
this
is
to
break
that
down
each
10-footer
into
three
sections.
So,
what's
ten
feet
divided
by
three,
that
sounds
like
three
feet:
four
inches
so
40
40
inches
you'd
be
the
most
natural
one
because
you
don't
want
to
like.
B
C
C
B
A
A
B
D
B
D
B
B
We
have
holes
for
transverse
attachment
of
X
and
y-axis
to
the
overall
system,
so
that
will
be
on
the
carriage.
So
if
we're
doing
the
geometry
as
list
as
shown
here,
two
sets
of
Y
axes
and
X
and
two
Z's
that's
a
convenient
way.
We
can
go
about
it.
You
can
also
go
make
one
axis
put
another
axis
to
it
and
put
a
third
axis
to
that.
I
mean
then
do
several
ways,
but
initially
we're.
We
have
materials
for
six
axes
like
that.
B
C
B
Natural
not
good
to
y
axes
to
x
axis
to
z
axes,
but
for
between
the
Y
and
X.
We
want
to
attach
like
this
through
the
end
nut
catchers
like
on
these
axes,
which
we
did
not
use
so
you're
not
familiar
with
that.
You
can
take
the
carriage
pieces.
You
can
see
that
you
can
attach
them
at
a
right
angle
through
the
interior
nut
catchers.
Does
that
make
sense.
D
B
Do
you
understand
that
concept
kind
of
you
can
take
the
pieces
that
we
can
take
the
carriage
piece
from
the
small
system
and
model
that
put
that
on
a
table
here,
model
that
and
attach
a
motor
piece
to
that
at
a
right
angle?
So
you
have
those
pieces
in
the
workshop
model
that
and
take
a
picture
because
that's
what
this
system
will
be
like
you're,
attaching
two
pieces
that
are
right
in
you're
attaching.
So
that's
the
let's
draw
that
in
a
little
bit.
C
B
A
motor
peak
motor
piece-
that's
gonna,
be
the
motor
and
another
motor
piece
attached
at
right
angles,
so
you
have
to
have
the
accommodation
for
attaching
two
of
these
to
the
carriage.
So
that
means
you
have
to
have
through
bolt
holes
that
we
were
planning
on
bolt
holes
like
the
carriage
has
bolt
holes,
look
how
it
is
done
on
a
eight
millimeter
version
and
then
see
if
you
can
figure
this
out,
scratching
your
head
scaling
it
up
and
not
only
attaching
one
but
at
attaching
two
axes.
So
we
can
do
that.
B
You
can
split
this
carriage
here,
instead
of
using
one
wide
carriage,
you
can
do
like
a
smaller
carriage
that
you
attach
this
other
one
to
and
another
one
here.
Let
me
zoom
into
that
says:
I
can't
see
that
so
you
got
another
carriage
here,
because
you
can
basically
the
idea
about
the
universal
axes.
You
can
attach
the
carriages
and
other
things
do
that
in
various
ways.
So
say
you
have
bolt
holes.
C
B
B
B
D
B
D
D
D
D
B
B
B
B
A
B
Long
one
pulley
shaft
must
be
ten
millimeters.
No,
the
police
have
eight
millimeters
holes
in
them.
Pulley
shaft
must
be
eight
millimeter.
The
motor
shaft
is
ten
millimeters,
but
we're
coupling
with
a
coupler
that
goes
from
ten
to
eight,
because
that's
what
we
could
find
I
couldn't
find
any
pulleys
that
had
10
millimeter
holes
like
that.
B
C
B
An
inch
use
half
an
inch
bolt
dry
type
it
in
okay.
Do
we
say
that
yet
use
half
inch
use
half
inch,
bolts,
use
four
bolts,
four
nut
catchers,
Laurel
four
bolts,
no
use
four
bolts
to
a
top
idler
and
motor
piece,
either
piece
when
I
say
piece,
idler,
three-deep
in
piece,
either
piece
and
motor
piece
to
frame.
We
don't
have
a
frame.
Yet
somebody
could
do
that.
That's
piece
of
work
for
somebody
use
for
nut
catchers
per
piece,
because
this
is
we
said
this
is
gonna,
be
more
than
a
hundred
pounds
per
axis.
B
B
B
Second,
bearing
supports
are
exist
for
the
pulley
shaft,
so
we
talked
about
shaft
mounting
when
you
mount
things
you
want
to
mount.
There
will
be
a
second
pulley,
so
eight
millimeters
second
support
bearing
on
the
pulley
shaft,
because
that
can
be
like
hanging
in
midair
there
it'll
just
bend
down
because
you're
pulling
up
the
belts
are
pulling
with
like
a
total
of
a
hundred
pounds.
So
you
got
to
support
the
other
end
of
the
shaft,
because
you're
just
coupling
it
with
a
coupler.
B
Top
side
of
motor
clamshell
must
hold
the
bearing
that's
a
that's.
In
other
words,
that's
the
same
thing:
I
just
repeated
myself.
We
must
build
in
that.
Bearing
support
bearings.
Can
someone
pass
the
bearings
it's
a
roll
of
bearings.
B
B
C
A
A
B
C
B
D
D
B
C
B
B
B
B
B
C
B
D
B
A
B
That's
all
the
requirements
I
have
explicitly
listed
so
far.
So
when
we
think
about
the
belt,
I
haven't
talked
about
many
other
things
like,
for
example,
the
belt
pegs
must
fit
in
there,
so
so
design
belt
holding
mechanism
maybe
write
that
in
I
would
maybe
just
do
slide
duplicate
slide
requirements
continued.
B
B
B
B
A
A
A
B
Linear
pattern
of
triangles
so
so
belt
peg
hole
has
has
ribs
what
else.
There's
a
second
belt
hole
and
carriage
allows
the
belt
to
go
through
it
because
you
got
to
have
the
belt
go
through.
It
don't
forget
about
the
second
belt
hold
and
carriage.
So
you
basically
look
at
the
character
piece
and
you
just
say:
okay,
throw
that
explicitly
in
there.
That's
got
to
be
in
there.
Second
belt
Poland
carriage
allows
belt
to
come
through.
B
B
B
B
A
A
C
C
B
Yeah
they're
exactly
2.75
point
two:
seven
five
inch
I
know
this
but
they're
about
75,
yeah,
six,
seven
millimeters!
Look!
That
means
is
that,
for
each
belt
belts
are
15
millimeters,
you
don't
need
at
least
two
so
you're,
probably
gonna
use
six
Wow
there's
to
show
you
how
fabulous
seven
so
you're
gonna
use
put
this
on
the
shaft
two
four
six
seven
gonna
put
a
shaft
through
it,
so
I'm
drawing
that.
D
A
B
C
B
B
But
the
other
way
to
do
that
eliminate
this
because
that's
another
part,
why
not
build
this
into
the
3d
printed
piece?
So
there's
a
3d
printed
piece
here
somewhere.
However,
it
is
and
you've
got
your
hole
for
the
belt,
but
put
like
a
little
flange
on
a
3d
printed
piece,
so
it
hits
the
raceway
you
see
and
it
holds
the
bearing
it
prevents
the
bearing
from
moving
any
further
out.
I,
don't
know
I'm
just
shouldn't
worry
about
it.
Okay,
I'll
go
over
to
the
other
side,
but
there's
enough
to
go
on
here
to
continue.