HAMAR LASER L-705, Manual

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2
Introducing the L-705/L-706 Laser Bore Alignment System
Bore alignment can be defined as aligning
or checking a bore for straightness or
making a series of bores concentric with
two reference bores. Reference bores are
usually the end bores, but they can be any
two of the series. A laser is placed in an L-
111 stand outside of the series of bores and
the laser beam is adjusted so it passes
through the center of the two reference
bores. This is accomplished by doing what
is referred to as a 2 point buck-in. Once the
laser beam is adjusted to pass through the
two reference bore centers, the remaining
bores can be measured using the same
target for their concentricity to the
reference bores.
Designed for high-accuracy bore
alignments, the L-705/L-706 Laser Bore Alignment System offers the most accurate, yet easy to use laser
alignment systems. With high resolution, capability to measure a wide range of bore diameters, and our
patented self-centering bore adapters, this is the best bore alignment system on the market.
The alignment system also offers a variety of target options, including self-centering, see-through, 2-axis
and 4-axis targets, hand-held readouts, and Windows
®
-based software to display and analyze alignment
data. The system handles a wide variety of bore alignment applications, including: aluminum can-making
machinery, bar-turning machines, bore straightness checks for cylinders, engine-block crankshaft bore
alignment, stern tube alignment, tail rotor bearing alignment for helicopters, and tube support plate bores
for heat exchangers.
Simplified fixturing and self-centering targets make it possible to set the system up in as little as 15
minutes. Bore straightness data can be taken and analyzed in 30 minutes or less in most cases. This
means even the longest bore application can be measured in just minutes versus hours for optics, tight
wire or other laser systems.
The laser has been designed with a standard aerospace tooling diameter of 2.25 in. (57.15 mm). Since the
laser beam is concentric to the OD to within .0005 in. (0.0127 mm), a simple flat face and .750 in. (19.05
mm) hole on center is all that is needed to hold the laser (powerful magnets hold the laser flush to the
face).
Any bore, from 3.75 in. (92.25 mm) up to 50 in. (1,270 mm) or more, can easily be measured with our
Bore Laser System. The system offers three bore adapters and a leg-setting gage to set the adapters to the
nominal bore ID. For bores from 2.0 in. (50.8 mm) to 3.75 in. (92.3 mm), we offer our A-510 Target and
A-510STA Self-Centering Adapter Hub and M-705CL Customized Measuring Legs.
When used with our R-1307 Readouts and Bore9 Software, the system provides a resolution of .00002 in.
(0.0005 mm). Under good environmental conditions, the laser is accurate to .004 in. (0.1 mm) over the
whole range. By carefully following the NORMIN procedure, (see Appendix A beginning on Page 37)
accuracies of .0003 in. (0.0075 mm) in 10 ft. (3.1 meters) can be achieved.