Table of Contents
Advertisement
1. Clean the REXT mounting face as recommended in
'Storage and handling'
on page 8.
2. Clean the mating surface of the mounting shaft/hub as
recommended in
'Storage and handling'
3. Move the axis to the mid-point of the required rotation, Ф.
4. Locate the ring so that the reference mark R1 is as
close to possible to the centre of the readhead, H1
(see figure 1).
Figure 1
0°
H1
R1
Ф/2
Ф/2
R2
H2
5. Rotate the axis to the full extent of required movement
in the counter clockwise direction. Ensure that the
readhead, H1, does not pass the other reference mark, R2
(see figure 2).
on page 8.
R1
Figure 2
H1
R2
H2
6. Rotate the axis to the full extent of required movement
in the clockwise direction. Ensure that the readhead, H1,
passes reference mark R1, but does not pass the other
reference mark, R2 (see figure 3).
7. Insert four M5 screws with flat washers into the four screw
holes by the fiducial marks.
IMPORTANT: DO NOT tighten the screws at this point;
simply engage the threads ensuring that the heads do not
touch the ring.
8. The ring is positioned correctly and can be adjusted.
See
'Adjusting the REXM/REXT ring
(full and partial rotation)'
on page 20.
Figure 3
H1
R2
H2
www.renishaw.com
R1
19
Advertisement
Table of Contents
