Universal Optical Drill Grinder
Operator's Manual Issue 06/01 Rev 02
12
Chucking drills
Chuck drills as follows:
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Insert drill in collet
-
A length of about 2 times drill dia.
must project from collet
e.g. drill dia.: 5 mm
projecting length: 10 mm
-
Tighten holder
Operating the machine
Aligning right-hand drills
up to 20 mm dia.
Align drills without 4-facet grind as well as possible
using the following procedure.
-
Slide holder using spigot sleeve
-
Lightly press drill against sapphire lens
-
View cutting edge in viewing screen
If the drill is not visible or only partly visible,
proceed as described in the next section on
Aligning projection image
on page 13. Then
continue as described here.
-
Turn drill until cutting edge is parallel to lines on
viewing screen
-
Lightly press drill against sapphire lens
-
Tighten tension nut
If the cutting edge is not parallel to the viewing screen
lines after the first grind, slacken the tension nut, re-
align the drill and re-grind.
