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Setting the spindle speed
The spindle speed can be adjusted continuously by
means of the electronic control.
In general:
Large milling tool diameter = low speed
Small milling tool diameter = high speed
The correct spindle speeds are indicated on the table
on the front of the milling machine.
Milling
Warning:
Use only accessories recommended for this milling
machine. Follow the instructions that accompany
accessories. Use of improper accessories may cause
hazards.
Warning:
Do not attempt to modify this tool or create
accessories not recommended for use with this tool.
Any such alternation or modification is misuse and
could result in hazardous condition leading to possible
serious injury.
Important
Always wear protective goggles when milling. Always
observe the enclosed safety regulations.
1. Fasten the work piece with the clamps supplied or in
a vice.
2. Switch on milling machine at switch 1(Fig. 4).
3. Adjust the required milling depth using handwheel 2.
(1 turn = 1 mm feed)
4. Tighten clamp screw 3.
5. Work with a suitable feed and with a suitable milling
depth. The feed must always be against the cutting
direction of the milling tool (Fig. 5).
6. Release clamp screw 3before readjusting the
cutting depth (Fig. 4).
Note:
The MF 70 MICRO Milling Machine is designed for
precise, fine machining. Therefore, adopt suitable
milling depth and feed rate. Otherwise, poor quality
milling results are to be expected. Furthermore, thermal
damage may be caused to the electric motor due to
continuous overloading.
Adjustment of scale on compound-type table:
Warning:
Disconnect the mains plug before making any
adjustments.
The scale rings on the handwheels are moveable and
can thus be set to zero without traversing the table. In
addition to the scale rings, the KT 70 micro-compound-
type table is equipped with a moveable scale for
adjustment in the X direction 19 (Fig. 1).
Maintenance
Adjustment of guide play
Warning:
Disconnect the mains plug before making any
adjustments.
All 3 axes of the milling machine are equipped with an
adjustable dovetail guide. If, after a time, a guide is
found to have too much or too little play, the play can
be reset via the adjusting screws (Fig. 6). In order to
adjust the play in the X direction, first release the nut 1
(Fig. 6). Then set the play using the set screws 2. Lock
by re-tightening the nut 1. Adjustment of play for the
other two axes is performed analogously.
Note:
Do not over-tighten the set screws as, otherwise, the
guide may be damaged. Evenly tighten all the set
screws.
Accessories recommended for use with
this tool
Milling cutters (NO 27 116):
These double flute cutters are made from solid
tungsten and are to be used for clockwise cutting. The
fishtail profile ensures cutting to the center, allowing
boring. Usable on cast iron, hardened cast iron, steel,
cast steel, brass, aluminium, and even glass, plastics
and carbon fiber. The set includes one each of 1/32”,
5/64” and 7/64” (1.0, 2.0 and 3.0 mm) shaft diameter.
3 jaw keyless chuck (NO 28 941):
Used to quickly and easily change accessories with
shanks from 1/64” - 1/8” (0,5 - 3,2 mm)
MICROMAT steel collets (NO 28 940):
One each in size 3/64”, 2/32”, 5/64”, 3/32”, 7/64” and
1/8” (1.0, 1.5, 2.0, 2.4, 3.0 and 3.2 mm) come as a set
in a practical holder for storage along with one
clamping nut.
Precision Steel Vice PM 40 (NO 24 260):
Milled of steel. Completely angular. Jaw with
1 13/16” mm, clamping capacity 1 3/16” mm.
Total length 2 3/4”. Especially suited for filigree
and accurate working with MICRO Miller MF 70.
Sliding blocks and fixing screws included.
Comes in a wooden box.
Dividing Head for MICRO Miller MF 70 and
Compound Table KT 70 (NO 24 264)
Used to drill off-set holes and to mill off-set slots,
rectangles, hex shapes, etc. The scale on the housing
enables high accuracy divisions.
Chuck with reversible jaws. The 14/32" mm bore allows
the passage of longer work pieces when used in the
horizontal position.
Supplied in wooden box with sliding lid.
For further accessories (e. g. millers for all kinds of
applications) please see our catalogue or visit our
website www.proxxon.com.
7


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