►
From YouTube: Universal Track Unit
Description
With Vincenzo. See more notes at Vincenzo's log:
https://wiki.opensourceecology.org/wiki/Vincenzo_Calligaro_Log#Tue_Mar_23.2C_2021
-----------------
What you see here at Open Source Ecology is an ambitious open source project for the common good. Join our development team:
http://opensourceecology.org/wiki/OSE_Developers
We run One Day Extreme Build workshops in many locations. Please put yourself on our map if you'd like us to host a workshop near you:
https://microfactory.opensourceecology.org/request-a-workshop/
Take a minute to subscribe to our email newsletter (updates, workshops, etc): http://bit.ly/1LtcM44
A
A
A
A
We
are
doing
the
immersion
sorry,
my
screen,
we
are
doing
the
immersion
training.
In
fact,
I'm
gonna
aim
to
put
up
that
announcement,
probably
like
april
1st,
regarding
the
what
we
call
the
summer
of
extreme
design,
build
and
the
immersion
training
for
builders
for
the
cd
go
home.
So
that's
that's!
Moving!
We're
not
finished
right
now,
yet,
with
the
new
model
of
the
house,
we're
still
going
to
finish
that
over.
A
Few
weeks,
but
we've
got
the
past
models
and
things
like
that
that
we
can
build
on.
So
that's
that's
moving
forward.
B
A
D
E
Okay,
because
I
know
that
for
now
the
city
comma,
is
the
biggest
project
for
this
year.
Correct.
C
E
E
Relevant
okay
about
the
3d
printer,
are
you
also
working
on
the
new
version
of
the
mega
3d
printer.
A
Well
not
actively
working
on
it,
but
in.
A
But
what
I
wanted.
A
A
C
E
C
B
As
far
as
yeah,
we
have
some
money
right
now
that
we
can.
A
D
E
Machines
or
tools
will
be
a
full
product
release
or.
E
Yeah
yeah
well
also
the
thoughts
table.
It
was
something
that
I
was
I
was
looking
about,
so
I
think
I
think
that
it'd
be
interesting.
Also
for
me
for.
E
A
E
Okay,
understand,
okay,
so
what
do
you
want
to
know
about
my
my
position,
my
involvement
with
the
opposite
psychology.
A
A
Regarding
possibilities.
E
E
Later
I
mean
for
me
the
things
it's
all
evolving,
so
I
I
don't
know
when
I
would
be
able
to
come,
but
I
think
that
for
what
I'm
playing,
I'm
planning
to
do.
C
A
E
Well,
actually,
I
don't
know
because,
as
I
wrote
you
in
previous
mails
by
now,
I'm
trying
to
see
if
I
can
find
the
the
founds
money
for
start
something
I
mean
I
saw
that,
for
example,
can
starting
something
in
indonesia
and
also
ashwin
starting
something
in
india.
E
So
I
think
that
my
di
is
to
see
I
was
going
on
with
them
and
then
I
follow
the
same
route.
Yeah.
E
C
E
If
you
see
my
work
on
the
wiki,
I
did
a
little
bit
of
drawing
and
those
awesome
modules,
and
today
and
yesterday
I
updated
a
little
bit
also
then.
A
D
A
A
B
E
C
A
D
C
B
C
D
E
Okay,
so
you
mean
that
then
the
first
idea
was
to
have
the
motor
outside
so
not
in
this
position,
but
the
the
motor
will
be
outside.
A
B
B
A
A
B
A
E
Oh
okay,
okay!
So
then
the
the
the
two
triangles
will
the
distance
between
the
two
triangles
will
be
larger
than
the
track.
B
Know
something
like
that,
so
we
might
have
to
cut
these.
A
Down
a
little
bit
here,
they're,
I
think
they're
10.
C
A
C
B
C
It's
all
geometry,
we
have
to
you,
know
we're
just
conceptually
speaking.
A
E
Of
course,
of
course,
yeah,
okay,
so
for
the
for
the
tensioner
by
now,
it's
quite
clear
I'll
try
to
draw
something-
and
I
share
with
you-
so
we
can.
We
can
move
forward.
C
E
Yeah,
because
by
now
on
the
on
the
wiki
page,
there
are
three
sprockets.
E
A
E
A
A
D
A
A
D
E
There's
a
link
also
in
the
in
the
card
page
of
the
universal
track
unit.
A
And
those
circles
there
are
about
two
inches
inch
od
for
the
rollers.
D
B
A
C
E
A
A
You
can
think
of
the
rollers
kind
of
smoothly
falling
in
and
out
of
place,
yeah
to
be
driven,
whereas.
A
A
E
Yeah,
well
all
the
sprockets
I
I
drew
for
now.
I
I
made
them
using
the
part
design
function.
E
D
E
E
Let
me
think
yeah,
but
no,
I
think,
I
think
not
because
on
the
envelope
gear
function,
there's
a
parameter
for
the
pressure
angle
or
something
like
that.
That
changes
a
little
bit
the
shape
of
the
of
the
teeth
of
the
sprocket,
but.
E
Yes,
I've
seen
that
one
and
the
first
first
test
for
drawing
a
sprocket.
I
used
this
one,
but
then
I
saw
on
the
first
version
of
the
small
sprocket
that
was
made
with
with
the
involute
here
and
that's.
Why?
Then
I
made
all
the
other
sprockets
using
him
yeah.
E
But
yes,
I
tried
also
using
the
the
openscad
function
and
I
can
I
can
make
the
sprockets
also
that
way.
Yeah.
E
The
smaller,
if
I
remember
well,
it
was
a
already
drawn
with
with
the
envelope
here-
is.
E
E
So
where
did
this
one
come
from
from
from
the
wiki
when.
E
The
drawing
the
the
the
other
parts
like
the
moth
or
the
coupler,
etc
yeah.
A
Well,
that's
right,
that's
that's!
That's
what
we
wanted,
so
you've
got
a
little
bolt.
You've
got
that
the
washer
there
and
maybe
like
a
little
weld
bead
to
hold
that
from
the
phone
moving
in,
but.
A
C
E
B
A
A
D
A
With
these
so.
A
E
E
A
E
Don't
worry,
don't
worry,
and
so
for
me,
the
next
step
is
to
redraw
the
big
drive
sprocket
and
the
the
one
that
I
call
the
track.
Sprocket
will
become
the
smaller
driver,
sprocket
redrona,
with
the
the
dimensions
for
the.
E
E
A
C
E
Okay,
okay
and
one
question
about
the
the
names
of
the
files,
but
now
I
uploaded
the
truck
drive
sprocket
and
the
file
is
called
the
truck
truck
sprocket
fcstd.
A
A
E
Okay,
okay
and
for
the
letting
the
old
files
so
that
we
don't
keep
a
garbage
and
a
in
the
week
in
the
server,
etc.
Yeah.
C
A
Worry
about
that
because
you
can.
C
B
A
A
Is
cheap
here
it's.
A
Okay,
to
leave
it
on
unt
until
a
maintainer
deletes
the
the
files
that
we
know
aren't
aren't
good,
which
can
happen
once
once
we
get
more
maintainers,
but
you
don't
have
to
worry
about
that
for
now,
because
file
size
is
manageable
at
this
point
and
we
put
the
larger
files
on
github
or
gitlab.
E
Okay
about
to
the
file
size
by
now,
the
file
size
of
the
of
the
document
I
uploaded
is
acceptable,
the
two
of
them
to
heavy
which,
which.
E
A
A
D
E
Motora
is
on
the
second
row,
the
yes,
that
one
right.
A
So
if
you
take
a
look
at
that,
you
might
think
of
okay.
What
are
some
of
the
details
we
will
need
to
if
we
have
an
accurate
file,
we're
going
to
need
to
have
those
bolts
be
drawn
in
there
properly,
so
we
might
want
to
take.
You
might
want
to
take
that
cut
out
there,
so
you
can
put
in
accurate
bolts.
C
A
C
E
I
I
searched
a
little
bit
here
in
surplus
center
if
I
can
find
the
actual
position
and
the
the
the
the
dimensions
of
for
the
the
polls
and
everything
about
the
demand,
but
I
haven't
found
them
so
by
now
on
my
file,
the
position
is
just
just
to
draw
some
some
some
place
for
the
bolt,
but
I
don't
know
if
the
position
is
correct
or
not.
E
E
B
B
E
They
say
yeah,
so
both
magneto
is
something
like
a
standard
or
something
like
that
or.
C
C
A
B
A
A
A
Else,
this
is
how
about
hydraulic
motor.
A
A
C
E
I
I
tried
also
that
way,
but
I
haven't
found
the
the
the
position
for
the
balls,
so
I
think
unfortunately,
I
think
that
by
now
the
the
the
easiest
way
is
to
actually
have
one
of
those
motors
but
yeah.
For
now
we
can
also
we
can
also
draw
the
positions
using
the
the
the
drawing
that
yeah
you
found.
Yeah.
C
E
Okay,
yeah,
okay,
so
also
also
also,
this
point
is
clear:
I
can
update
the
the
motor
and
both
on
the
on
the
single
motor
motor
file
and
also
on
the
on
the
module
file.
C
C
C
E
E
Yeah
for
about
the
links
I
linked
to
the
to
the
part
to
the
freak
advice,
because
I
already
have
it,
but
I
was
thinking
also
that
if
I
don't
have
the
cad
file,
but
I
have,
for
example,
a
link
to
a
page
of
a
supplier
of
a
certain
component.
A
A
C
E
Yeah
yeah,
okay,
one
other
thing
about
the
what
I
I
did
on
the
wiki,
for
example,
for
the
motor
or
the
coupler
other
all
the
parts
that
have
a
link
to
an
actual
product.
A
Yeah,
I
noticed
you
did
that.
That's
good,
that
we
have
the.
A
A
So
you
put
it
right
in
there
right
on
a
page
like,
for
example,
this
motor
having
a
link
right
here.
Somebody
who
didn't
know
that.
B
C
A
A
A
So
you
know
like,
for
example,
you
should
find
universal
track
unit
bom,
and
even
if
you
didn't
know
this
page
existed,
you
can
literally
type
universal
track
unit
bom
in
a
title
bar
and
you
should
be
able
to
get
that
without
because
there's
a
formal
taxonomy.
This
is
the
formal
taxonomy
that
we
use
for
the
all
the
pro
projects.
A
B
A
A
E
Meaningfully
because
they
see
the
source,
so
that's
good,
okay,
okay
and
another
question
about
the
cad
parts.
So
the
single
single
files,
for
example
the
motor
or
the
coupler,
are
made
with
or
part
or
with
the
part
design,
with
the
the
standard
workbenches.
E
The
modules.
By
now
I
made
them
using
the
workbench
a2
plus,
is
that,
okay
or
because
I
searched
a
little
bit
on
the
wiki
and
searching
for
assembly
workbench,
I
saw
some
pages
about
the
assembly-
two,
not
the
assembly,
two
plus
workmanship.
E
So
I
was
just
thinking
if
ose
uses
assembly
two
or
is
good,
also
assembly,
two-plus.
A
E
I
think
it's
quite
stable,
also
because
the
h2
plus
is
quite
a
old
world
bench
and
now
there
are
also
assembly,
three
workbench
in
the
in
the
endeavor
development
and
assembly
for
and
these
two
are
quite
new
because
they
use
a
feature
that
was
introduced
in
freecad
019
but
h2
plus.
E
I
remember
that
he
he
was
using
it
back
in.
E
E
2016.,
so
it's
quite,
let
me
say,
older
yeah.
A
B
A
C
E
Yeah
yeah,
okay,
okay,
maybe
I'll
I'll.
Try
with
the
the
merger.
The
the
merger
is
a
feature,
a
standard
feature
of.
E
A
A
D
B
A
E
B
E
A
A
D
C
A
E
Yeah
yeah,
okay,
but
you
have
to
pay
attention
the
to
the
position
on
the
original
file:
yeah
yeah,
okay,
yeah.
E
So,
okay,
I
understand
because
by
now
I
use
using
h2
plus
I
don't
have
this
kind
of
issue
because
I
simply
use
a
constraint,
for
example,
actual
constrain
or
planar
constraints.
C
E
Everything
correct.
A
E
Yes,
and
also
if
the
file
the
file
or
the
subassembly
is
modified
by
someone
else,
you
can
simply
update
it.
There's
a
button
to
update
the
the
the
assembly.
You
are
working
on
with
the
files
of
the
updated
files
and,
if
I
remember
well,
this
also
keeps
all
the
constraints,
so
you
don't
have
to
replace
everything
and
tell
okay.
This
is
an
actual
constraint.
This
is
a
planner
constraint,
yeah.
E
Skilled
people-
okay,
okay,
okay,
so
I
I'll
I
try
with
the
merger
and
I'll
tell
you
all.
What's
the
result,
yeah.
C
E
Instead
with
the
with
the
h2
plus,
I
don't
know
in
detail.
How
does
it
work,
but
I
think
that
it's
it
takes
only
the
shape
or
only
the
the
latest
feature
of
the
part
that
you're
importing.
So
that's
not
you
don't
see
everything
about
the
part
you
are
importing.
C
E
E
Okay,
okay,
yeah
I'll.
Try
also
that
one
okay.
D
E
One
thing
that
I
haven't
discussed
with
you
yet
the
the
shafts
for
both
the
the
the
either
mode
either
model
and
the
drive
module.
E
There
should
there
be
some
space
between
the
triangle
and
the
shaft
or
the
shaft
should
pass
through
the
the
triangle.
C
E
Okay,
okay
and
also
but
the
shots.
We
have
also
two
other
also
for
the
for
the
screws,
with
the
with
the
bearings.
E
Okay,
yeah
yeah,
okay
and
the
the
big
drive
sprocket
will
be
welded
with
the
the
with
the
shaft
or
we
need
to
tap
another
hole
and
use
a
bolt
and
a
washer,
etc.
Oh.
A
I
see
that
one
probably
I
mean
the
standard
thing
to
do
would
be
a
key
way.
Let's
see.
A
D
Let
me
show
you
some
photo
all
right:
let's
go
to
the
clamp
collar
search
for
clamp
collar.
D
B
E
A
A
B
A
A
E
A
A
A
Is
cut
and
split
and
and
clamped
on
this.
D
A
Like
120
newton
meters
or
something,
let's
see
that
115
000
inch
pound
two
newton
meters,
oh.
B
A
A
E
Okay,
okay,
okay
and
I
I
will
do
this
for
both
the
drive
module
and
the
hitler
module.
A
E
A
B
A
A
B
B
A
You
need
to
hold
a
lot
of
force
there
now,
as
you
see
the.
A
A
A
We
probably
have
to
put
the
bearings
on
the
outside,
but
for
the
idler
part,
which
is
like,
for
example,
this.
B
A
A
B
B
A
C
C
C
C
A
B
E
E
That
can't
be
so
much
bigger
because
otherwise
it
will
collide
with
them
with
the
tracks.
A
B
A
D
A
A
A
C
C
C
C
A
A
A
I
would
just
weld
that
sprocket
on,
since
that's
really
easy.
A
C
A
Just
almost
it.
B
A
B
C
E
Well,
maybe
we
talk
about
that
later,
but
for
the
key,
it's
enough
one
key.
C
B
E
E
Work
on
that,
because
the
the
the
borah
is,
if
I
remember
well,
a
an
inch
and
a
25,
but
the.
E
Okay,
okay,
yeah,
just
just
for
me
to
understand.
Well
the
various
steps.
D
D
C
E
A
Oh
yeah,
there
it
is-
and
here
you
take-
you
see
where
the
clamp
is
taking.
The
bolts
are
taken
off
yeah.
E
You
can
you
can
make
it
that
way.
If
you
don't
have
issues
like
the
issue,
we
have
with
the
trucks
yeah.
B
E
And
I
would
like
to
ask
you
just
another
question,
since
it's
it's
a
5
p.m.
For
you
and
for
me,
it's
11
p.m.
E
So
about
the
the
docs,
the
working
document
and
various
documents.
E
So
by
now
I
asked
you
the
the
the
permission
for
for
the
modifications,
but
all
the
document,
the
working
document
should
be
editable
since
the
beginning.
Is
it
correct,
yeah,.
C
E
E
C
A
B
E
Think
that
if
we
want,
we
can
talk
for
hours
and
hours
and
hours,
but
for
now
I
think
I
think
it's
okay
and
we
can
keep
in
touch
by
email
and
on
the
wiki
and
everything
else.
Okay,.
A
Yeah
so
I'll
keep
going
at
it
and
we'll
build
this
start
getting
this
bill.
If.
A
A
You,
whenever
it's
done,
we
can
pretty
much
prototype
it
yeah.
E
Yeah
yeah
well,
as
you
can
see
I,
when
I
have
enough
time,
I
try
to
to
move
forward
and
do
all
the
the
tasks
so.
C
E
Hope
that
no
much
time
we
can
have
something,
that's
a
good
that
can
already
be
built.
Yeah.
C
A
C
A
A
E
It
could
be
interesting
if
you
have
some
part
that
is
already
built,
and
you
just
give
me
the
dimensions
and
some
picture,
if
doesn't,
if
there's
no,
if
it
isn't
already
on
on
the
wiki
yeah,
so
I
can
make
the
the
cut
file
for
the
parts
that
you
already
have
yeah.
A
A
A
A
E
Yes,
yes,
it's
also
on
the
conceptual
design
document,
this
concept
yeah,
so
yeah,
okay,
maybe
maybe
we
just
have
to
pay
some
attention
about
the
the
various
dimensions,
but
I
think
I
think
that
if
we
design
it
correctly,
we
can
scale
it
up
pretty
pretty
easily
yeah.
E
D
C
E
Yeah
we
keep
in
touch
by
mail.