Page 27 Operating Manual Leica EM TXP 10/10
7.5
Milling the cutting face
Swivel the specimen pivot arm (3.1) to its end stop using lever (3) (indication 0). In
this position the specimen and miller axes are parallel. Focus the microscope on the
specimen using knob (1.6) on the stereo microscope carrier. Make sure the milling
tool will not touch the sample by moving the tool control lever (7). If necessary rotate
feed hand wheel (2) clockwise to retract, or use HOME button of the control panel.
Select appropriate rotation speed.
Switch on the motor by pressing the red button less than
one second. The spindle motor rotates until the button is
pressed again. If the button is pressed longer than one
second the spindle motor rotates until the button is
released. The spindle motor can be switched on by
pressing the START button as well.
While observing in the stereo microscope, move the milling control lever (7) slowly
down. If no material is removed rotate the feed hand wheel counter-clockwise
(advancing the miller towards the specimen).
One click stop of the feed hand wheel (2) corresponds to the selected step size on
the control panel.
Continue with the above mentioned procedure until a milled face is produced. For
best results milling should always take place from left to right. That means the
advance of the miller should be performed when the miller is on the left side of
sample. Also the milled material is then thrown down into the waste channel.
The best surface quality can be achieved using a 1 µm or 0.5µm step advance and a
very slow movement of the milling control lever for the final pass. The prepared face
can be judged by swivelling the specimen pivot arm (3.1) into the front face
observation position (indication 60). Additionally, the surface quality will be improved
by cooling the miller. In this case disconnect the hose of the extraction unit.
2
3
1.6
clockwise
7
3.1
