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ART Laser String II Triple Laser Four Wheel Alignment System





  The "Laser String II" is a triple laser head tool using laser line generation technology. Laser String II is the first 3D laser measurement device of its kind for performing four wheel alignments, chassis inspection, and chassis construction using the vehicle centerline as reference.

Laser String II simulates traditional three string alignment method used by racers but adds a third dimension in the vertical axis.

The Laser String is currently used by over 75% of the NASCAR teams and considered the corporate standard for many of the top championship teams. Not only is the Laser String the standard gauge for chassis setup, it is also considered one of the key components in stock car frame construction and body panel placement.

Laser String II is a custom built three head laser system for projecting three vertical parallel reference lines. The center laser beam is used to establish or target the vehicle centerline. The two outer laser beams, on each side of the race car, are calibrated to the center laser beam.

Using the triple is very simple. Place the gauge on the ground, level the high precision bubble level, align the center laser to your vehicle centerline, and your ready to go.

Each laser head has three axis adjustment capabilities for calibration or custom setup. The first adjustment is for "X" axis. This is performed by simply sliding the laser head from side to side on the supplied aluminum rail to set the spacing between the laser beams. The second adjustment allows the laser beam to "pan" for setting the laser beams parallel to each other. The third adjustment is used to tilt the laser beams so that they are vertical and plumb to each other. The standard tilt angle range is +/- 4 degrees and can be adjusted within this range for special applications. Steeper angles are available on request.

Both tilt and pan adjustments have a fine 80 pitch resolution. Individual laser heads are available for special applications that require custom fixtures.


Item Catalog # Price USD
ART Laser String II 85.120 please call



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