The use of the high-base bevel depends on two parameters: the frame and the lens.
•
Concerning the lens, the main constraint is the thickness of the nasal and temporal edges.
•
Concerning the frame, the crucial elements are the bridge and shape of the groove. The hinge is an
additional factor in the case of a metal frame, the arms for a plastic frame.
For this job, the lens base must always match the frame base perfectly. Too great a difference
between the two could be detrimental to the quality of your job.
Cross-sectional view of a high-base bevel
1: Shelf bevel value
2: Width of the flat side of the bevel
3. Front surface tracking value
a. Captioned screens
1.
High-base bevel “front surface tracking” screen
2.
Work area
Image of the shape to be edged:
Frame shape at bottom of groove
Bevel trajectory on rear surface
U
SER
M
ANUAL
> II. E
DGING
A
LENS
29
Pro-E 600 > v1 -02.17
Summary of Contents for PRO-E 600
Page 1: ...User Manual ...
Page 5: ...I FIRST STEPS WITH PRO E 600 ...
Page 12: ...II EDGING A LENS ...
Page 66: ...III CONFIGURING THE EDGER ...
Page 77: ...IV MAINTENANCE SERVICING ...
Page 102: ...TECHNICAL DATA ...
Page 106: ...GENERAL INFORMATION ...
Page 110: ...GLOSSARY ...