The posiblocks and their corresponding pads are supplied with the edger.
• Always use Essilor pads: they are specially designed to ensure the performance of your
machine for quality jobs.
• The pads are non re-usable.
• Do not stick pads on posiblocks in advance as they may lose some of their holding power.
• The posiblock must never be placed on the rear (inner) surface of the lens.
Blocking in Boxing center or in optical center
Depending on your working practice, you can choose to block the lenses:
• In the boxing center of the shape (recommended),
• In the optical center
BLOCKING IN BOXING CENTER (BLUE CROSS) BLOCKING IN THE OPTICAL CENTER (TARGET)
In the event of blocking in the optical center, the posiblock position on the shape may be off center.
The selected blocking mode is displayed in the information bar:
• blocking in the boxing center
• blocking in the optical center
By default, the tracer-centerer-blocker blocks the lenses in the boxing center.
To choose a different blocking mode, consult the section Tracer-centerer-blocker configuration > Customize
> Work modes and display precision (F p.129).
Tubes
There are two diameters of tube:
• The smallest tube has a diameter of 42 mm. It is the standard tube mounted by default on the
machine
• The large tube has a diameter of 53 mm. This is an optional accessory and will only be used in
specific cases, such as hydrophobic lens stickers. It is mounted instead of the small tube, by a simple
system of bayonet assembly.
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