Sherline 5000 Mill Assembly Instructions
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END MILLS (Slot and side milling)
MATERIAL CUT SPEED (S.F.M.)1/8” DIA. 1/4” DIA. 3/8” DIA.
Stainless Steel, 303 40 1200 RPM 600 RPM 400 RPM
Stainless Steel, 304 36 1100 500 350
Stainless Steel, 316 30 900 450 300
Steel, 12L14 67 2000 1000 650
Steel, 1018 34 1000 500 350
Steel, 4130 27 800 400 250
Gray Cast Iron 34 1000 500 350
Aluminum, 7075 300 2800 2500 2000
Aluminum, 6061 280 2800 2500 2000
Aluminum, 2024 200 2800 2500 2000
Aluminum, Cast 134 2800 2000 1300
Brass 400 2800 2800 2800
DRILLS
MATERIAL CUT SPEED (S.F.M.) 1/16” DIA. 1/4” DIA.
Carbon Steel 36 2000 RPM 550 RPM
Cast Iron, Soft 30 1800 450
Stainless Steel 24 1400 360
Copper 72 2000 1100
Aluminum, Bar 240 2000 2000
Aluminum, Cast 120 2000 2000
FIGURE 61—Drill and mill speed adjustment chart.
requirements should be employed. Be certain that the RPM
is appropriate before attempting to remove any metal. An
end mill can be instantly damaged if a cut is attempted at
excessive RPM. Like all cutting tools, end mills will have a
short life span when used for machining steel or other exotic
materials. Save new cutters for finish work. Because of
excessive cutter deflection (bending), do not use small
diameter end mills with long flutes unless absolutely
necessary.
RESHARPENING END MILLS
End mills can be resharpened by your local tool and cutter
grinding shop. End mills lose their cutting edge clearance
after a couple of sharpenings and should no longer be
reused.
USING THE MILL COLUMN SADDLE LOCK
The saddle locking lever is located on the back side of the
mill column just above the saddle nut. This lever tightens
against the saddle nut on the column leadscrew to keep it
from moving during milling operations.
With the lever released, adjust the Z-axis handwheel to the
desired setting. Rotate the lever counterclockwise to lock
the saddle. This will eliminate any backlash in the leadscrew.
Friction on the gib can still cause a little backlash to be
present between the handwheel and the leadscrew thrust.
To eliminate this, push down on the saddle to make sure
the handwheel is fully seated against the thrust. Double
check your height adjustment. Now, when milling, the saddle
cannot move any further down.
To release the saddle, rotate the lever clockwise. A spring-
loaded ball in the saddle fits in a detent on the lever to keep
it from locking accidentally when the Z-axis is adjusted.
(See Figure 62.)
SENSITIVE DRILLING ATTACHMENT (P/N 1012)
The sensitive drilling attachment provides both
faster drilling of multiple holes and better “feel”
for the cut when using drills smaller than 1/16".
A Jacobs 5/32" drill chuck is fitted to a spring
loaded shaft that inserts into the spindle. A red
knurled collar with a ball bearing at the center,
allows the user to hand feed the chuck. A spring
inside the brass tube helps return the chuck to
the up position when done. The chuck holds
drills from 5/32" (4 mm) down to #80 or smaller.
The attachment is easily installed by screwing
it onto the external thread of the spindle.
3/8" END MILL HOLDER (P/N 3079)3/8" END MILL HOLDER (P/N 3079)
3/8" END MILL HOLDER (P/N 3079)3/8" END MILL HOLDER (P/N 3079)
3/8" END MILL HOLDER (P/N 3079)
The 3/8" end mill holder makes it easy to use the popular
(and less expensive) 3/8" end mills. Using double-ended
end mills is economical and easy with this holder, as tools
are changed by simply loosening a
set screw and changing the tool.
Sherline now offers holders to hold
other size cutting tools in the same
manner. The following additional
sizes are available: 3/16" (P/N
6080), 1/4" (P/N 6079), 5/16" (P/N
3075), 6.0mm (P/N 3076), 8.0mm
(P/N 3077) and 10mm (P/N 3078).
ACCESSORIES FOR MILLING
MILL COLLET SET (P/N 3060)
(See Figure 65 on next page.) The main purpose of the mill
collet set is to hold end mills. The spindle nose has an internal
Morse #1 taper that closes the collet as the drawbolt is
tightened. Morse tapers are approximately 5/8" per foot
and are self-locking. Therefore, to loosen a collet, the
drawbolt must be loosened a few turns and given a few
light taps with a hammer.
LOCKING LEVER—
TURN LEVER
COUNTERCLOCKWISE
TO LOCK, CLOCKWISE
TO RELEASE
FIGURE 62—Mill
column saddle lock
SADDLE NUT
MILL SADDLE
COLUMN LEADSCREW
SADDLE NUT
ADJSUTMENT
SET SCREWS
The addition of accessories can greatly enhance the utility
of your mill. A few of the more popular accessories are
described below.
FIGURE 64—3/8"
End mill holder
Fig.63