Migatronic GREEN POINTER PRO CUT, User Manual

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5.  Safety procedures

•  Never use the product if the grinding disc is 

damaged

•  Use only diamond discs recommended by 

Migatronic A/S

•  Use the product only when all parts of the chamber 

is mounted

•  Use only the grinder with EP770 grinding liquid 

from Migatronic A/S

•  Only grind Tungsten electrodes with electrode 

holder 

•  Always use an appropriate size clamp to the 

electrode for grinding.

6.  Fastening of the electrode  
 

in the electrode holder

Select the size of the electrode clamp that match the 
diameter of the electrode and mount it loosely in the 
electrode holder. Then insert the electrode into the 
clamp, so that approximately 20 mm of the electrode 
is sticking out of the clamp. Tighten the clamp with 
your fingers, but not so tightened that the electrode 
cannot slide in the clamp.
Insert the electrode 
with the electrode 
holder into the stick-out 
setting), placed below 
on the right front side 
of the grinding (see 
picture), until it stops. 
Tighten the electrode 
with a smooth turn of 
the electrode holder clockwise.
Only fasten the electrode as tight, as it does not slide 
in the electrode clamp. If the electrode is too tight 
fasten, you risk damage of the clamp.
On the back of the stick-
out adjustment, there is 
a regulator screw (see 
picture), which can be 
adjusted to determine the 
length of the electrode 
sticking out of the clamp. 
The manufacturer has set 
the regulation screw to 
grind approx. 0.3 mm in order to obtain the highest 
number of grindings per electrode as possible.
This means, that you can re-grind the electrode up to 
450 times. It is necessary to adjust the stick-out as the 
diamond wheel wears down.
It is often not necessary to break off metal drops on 
the electrode before grinding. The metal drops do not 
melt together with the electrode; the grinding process 
will remove them.

7.  Setting the grinding angle

Adjust the grinding angle 
by placing the cursor (1) at 
the desired grinding angle. 
Tighten the electrode guide 
by tightening the screw (2).

Note: the grinding angle 
equals half the tip angle!

After the tungsten electrode 
is inserted in the electrode 
holder, it is inserted in the 
angle adjust unit until the 
electrode almost touches 
the diamond disc. Start the 
machine at the on/off switch 
and turn the electrode 
holder in a calm and steady 
pace and with light pressure 
until the electrode holder 
cannot go further in. Keep 
turning the electrode 
holder for at least five rounds to get the best possible 
grinding result.

It is not necessary to press the electrode hard 
against the diamond wheel, a light pressure and the 
rotation of the grinding disc is sufficient to grind the 
electrode.

Pull the electrode holder back a little, so that the 
electrode does not touch the grinding disc. Turn off 
the grinder and pull out the electrode holder after 
the grinder has stopped turning.
Removed the electrode from the electrode holder 
by re-inserting the electrode into the stick-out 
adjustment and turn it counterclockwise. Then pull 
out the electrode.
To create a flat tip on the electrode after grinding:
•  Setting grinding angle to 90° (while grinder is 

turned off)

•  Put the electrode holder with the electrode in the 

angle adjustment again

•  Turn the tightening screw on the angle setting 

down until you feel the tip of the electrode 
touches the grinding wheel.

•  Then turn the tightening screw down. A point on 

the brass bearing on top of the screw corresponds 
to remove 0.1 mm off the tip.

•  Pull the electrode away from the grinding disc.
•  Start the grinder and gently push down the 

electrode holder in a turning movement and the 
tip is flattened.

•  Turn off the grinder and pull out the electrode 

holder.

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