Bedienungsanleitung Proxxon MF 70 (Seite 7 von 10) (Englisch)

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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.

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