THORLABS Vytran FFS2001 Series User Manual page 83

FFS2001 Series
from the command line. Alternatively, assign the macro "Home Cleave Blade.txt" to the user macro
selecting Splice | User Macro Path 1... from the menu bar, and then execute by clicking on the User Macro icon.
The cleave blade can also be homed by running the reset macro (click the reset
10.3.6 Reposition the Cleave Blade
Only a small portion of the cleave blade diamond edge is used to scribe the fiber. If this local portion of the edge
gets damaged, the blade can be re-positioned to a new "un-used" section. While the lifetime of a given section of
the blade can be very long (greater than 10 000 cleaves), it is also very easy to damage the blade due to excessive
lateral stresses (stresses perpendicular to the edge of the blade). This can occur if the blade is in contact with the
fiber and the fiber then moves sideways across the edge of the blade. The most common occurrence of this is a
result of the fiber slipping during the cleave due to improper cleave tension and/or fiber clamping. The fiber will
slide along the edge of the blade and take a small semi-circular "bit" out of the current section. For small localized
damage such as this, the blade can be re-positioned up to maximum of 5 times.
To reposition the cleave blade:
1. Loosen the two 2-56 socket head screws at the outside edges of the cleave blade assembly front plate
using a 5/64" hex key. Note: Do not loosen any of the 4 center screws.
2. Using a pair of scissors, cut a section of 0.010" plastic shim (brown) from the tool kit, such that it matches
in size with the bottom edge of the cleave assembly front plate.
3. Insert the shim under the bottom edge of the cleave blade assembly front plate. Note: The front plate is
difficult to raise due to the cleave belt tension. It may be necessary to fully remove the clamping screws
and angle the front plate upwards.
Do not add more than two 0.010" shims under the front plate of the cleave blade assembly. After adding two
shims, if adjustment is still required, remove all shims and rotate the cleave blade 180° so that the bottom edge
of the blade is now at the top (see 11.3.8 ). If the blade has already been flipped, and two shims have already been
added, then a new cleave blade must be installed.
• Apply downward pressure to the front plate assembly and retighten the clamping screws, securing the
front plate. Check that the front plate is flush side-to-side with the main stripper/cleaver base. Adjust if
necessary.
Home the cleave blade by sending the command:
•
MOTORTO (11 0)
from the command line. Alternatively, assign the macro "Home Cleave Blade.txt" to the user macro
by selecting Splice | User Macro Path 1... from the menu bar, and then execute by clicking on the
User Macro icon. The cleave blade can also be homed by running the reset macro (click the reset
icon).
Run some test cleaves to check both the left and right side cleave quality and to ensure that the blade is
•
striking the fiber in the middle of its oscillation cycle. Adjust if necessary (see Section 10.3.7).
Rev. A, August 14, 2024
Chapter 10: Maintenance
by
icon).
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