Dremel MOTO-TOOL 395 Manual del usuario - Página 5
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Operating
Speeds
& Accessories
Set
the
speed
indicator
to fit the job
- To
achieve
the
best
job
results
when
working
with
different
materials,
the
speed
of the
Moto-Tool
should
be
regulated.
Only
a full
wave
output
speed
control
such
as
the
Dremel
Models
217
and
219 should
be used
with
the
Model
275.
Model
285
and
395
Moto-Tool
has
an integral
speed
control
and
an external
speed
control
should
never
be
used
with
these
tools.
To select
the right
speed
for each
job,
use a
practice
piece
of
material.
Vary
speed
to
find
the best
speed
for the accessory
you are
using
and
the job
to be done.
There
are
three
basic
types
of Moto-Tools:
single
speed,
:wo-soeed
and
variable
speed
models.
On the
single
speed
model,
thereis
an ON-OFFswitcn.
When
the switch
is on, the
tool
runs
at 28,000
F_PM.
On the
two-speed
model,
there
is a LO and HI switch.
When
the
switch
indicator
is on the low setting,
the tool
runs
at about
15,000
RPM.
When
the switch
indicator
is on
the
high
setting
the
tool
runs
about
28,000
RPM.
On
the
variable
speed
model,
there
is a switch
indicator;
with
a white
line
on it. Slide
to the number
on the housing
to
select
the
operating
speed
needed
from
5,000--
30,000
R.P.M,
You
can referto
the
charts
on
page
6
to
determine
the
proper
speed,
based
on
the
material
being
worked
and
the
type
of
cutter
or
other
accessory
being
used.
These
charts
enable
you
tO select
both
the correct
accessory
and
the
optimum
speed
at a glance.
If
you
have
a
single
speed
or
two-speed
model,
you
wil
be
able
to use
many
acces.-.
sories
to do
a wide
assortment
of jobs.
For.
the
majority
of applications,
all models
of the
Moto-Tool
should
be used
at top'speed.
Needs
for Slower
Speeds
However
certam
materials
(some
plastics,
for example)
require
a relatively
slow
speed
because
at mgh
speed
me frtotion
of the tool
generates
neat
and causes
ti'le plastic
to melt.
Most work is done at top spe_:l
on all Moto-Tooi
models.
Lower
speeds
are
needed
only for
certain
tasks.
Slow
speeds
( 15,000
R P M or less)
usually
are
best
for polishing
o_erations
employing
the
felt polisning
accessories.
They
may also
be
best
for
working
on
delicate
projects
as
"eggery"
work,
delic:_te
wood
cawing,
and
fragile
model
parts.
You
should
always
do
polishing
with wire brush
accessories
at slower
speeds
and never
higher
than
15,000
RPM.
Higher
speeds
are better
for cawing,
cutting,
routing,
shaping,
cutting
dadoes
or rabbets
in wood.
Hardwoods,
metals,
and glass
require
high
speed
operation,
and drilling
should
also
be
done
at high speeds.
The speed of model
395 is controlled
by setting
this indicator
on the housing.
The
Settings
for Approximate
Revolutions
Per Minute
Moto-Tool
Variable
Speed
Model
395.
Switch
Setting
Speed
Range
1
4,500-
8,000
RPM
2
9,000-11,000
RPM
3
12.000-17,000
RPM
4
18,000-24,000
RPM
5
25,000-30,000
RPM
NOTE:
Speed is affected
by voltage
changes°
A reduced
incoming
voltage
will
slow
the
R.P.M.
of the tool,
especially
at the
lowest
setting.
If your
tool appears
to be running
slow increase
the speed
setting
accordingly.
I
If you choose,
dial
the speed
you need on the
single
speed
model
275
with
this
table-top
control
accessory.
Dial
Settings
for
Approximate
Revolutions
Per
Minute,
using
the
No.
219
Manually
Operated
Speed
Control
with
single
speed
Moto-Tools.
Dial
Setting
Speed
Range
1
500 RPM
2
4,000
RPM
3
12,000
RPM
4
22,000
RPM
5
28,000
RPM
(Note:
You
can
dial
intermediate
settings.
For
example,
a dial
setting
of 2-1/2
would
produce
a motor
speed
of
approximately
8,000
RPM.)
If you
need
it. single-speed
models
also can
have
speed
control
by the addition
of a foot
control
unit.
The point
to remember
is this:
You can do the
great
malonty
of work
wtth
the single
speed
at
its
regular
speed
of
28,000
RPM.
But
for
certain
materials
and
t'/pes
of work,
you need
slower
speeds
- which
_s the reason
the variable
speed
models
and
t_e
speed
control
units
were
de,,'e_c #e_.
To
aid
you
in
determining
the
optimum
ooera[_onalaoeed
for gifferent
materials
and
different
accessories.
'we have
constructed
a
series
of to[ales
tl_at
acapear
on
page
6. By
referring
to _nese
tables,
you
can discover
the
recommended
speeds
for
each
type
of
accessory
Looktheseta_lesoverandbecome
faro,liar
w!tn
[hem.
Page
5
Ultimately,
the best way to determine
the correct
speed
for work
on any material
is to practice
for a few minutes
on a piece
of scrap,
even
after
referring
to _he chart.
You
can
quickly
learn
that
a slowe?
or faster
speed
is more
effective
just
by observing
what
happens
as
you
make
a pass
or two at different
speeds.
When
working
with plastic,
for example,
start
at a slow rate of speed
and increase
the speed
until
you observe
that the plastic
is melting
at
the point
of contact.
Then
back
the speed
off
sligntly
to get the optimum
working
speed.
Some
rules
of thumb
in regard
to speed:
1. Plastic
and
materials
that
melt
at
low
temperatures
should
be cut at low speeds.
2.
:olishing,
buffing
and cleaning
with awire
brush
should
be done
at speeds
below
15,000
RPM
Io prevent
damage
to
the
brush.
3. Soft
wood
should
be cut at high
speed.
4. Iron
or steel
should
be cut at top
speed
if
using
atungsten
carbide
accessory,
but at
slower
speeds
if using
high
speed
steel
cutters.
If a high
speed
steel
cutter
starts
to
chatter
- this
normally
means
it
is
running
too slow.
5. Aluminum,
coplber
alloys,
lead alloys,
zinc
alloys,
and
tin may
be cut at any
speed,
depending
on the
type
of cutting
being
done•
Use
paraffin
or
omer
suitable
lubricant
on the cutter
to prevent
the
cut
material
from
adhering
to the cutter
teeth.
Increasing
the pressure
on me tool
is not the
answer
when
it is not cutting
as you
think
it
should.
Pernaps
you
should
be
using
a
different
cutter,
and perhaps
an adjustment
in speed
would
solve
the problem.
But
lean-
ing on the tool
seldoms
helps.