T-261 Four-Axis Simultaneous Target

T-261 Four-Axis Simultaneous Target


The T-261 4-Axis target reads horizontal and vertical centering and angular (pitch and yaw) data simultaneously and provides continuous, real-time information to a live graphic display, enabling the user to see changes and adjustments as they are made. The target can be used with most of Hamar Laser’s readouts and interfaces, both manual and computerized. Two levels on the top and bottom of the target provide accuracy in rotational positioning for our NORMin procedure. The target’s .5 inch (12.7 mm) diameter mounting stud simplifies fixture design and building, and the stud can be easily removed and replaced with a custom mounting stud or fixture. A .500 inch (12.70 mm) hole reamed square to a face is all that is needed to mount the target. The T-261 is factory-aligned to tight specifications, with a angular resolution of .00001 center resolution of .00001" (0.00025 mm) inches/foot (0.000.8 mm/M). When used with Hamar Laser’s alignment software, our NORMin procedure compensates for mounting and other errors for even greater accuracy.


  • Aerospace Tooling/Fixturing
  • Boring Mill Spindle-to-Part Alignment
  • Printing Press Side Frames
  • Pumps, Compressors, Blowers
  • Rotary Dial Machine Spindle Alignment
  • Spindle Alignment
  • Transfer Center Spindle Alignment
  • Transfer Line Spindle Alignment


Size: (See drawing)
Weight: 14 oz. (400 g)
Material: .4995 inches (12.687 mm)diameter concentric mounting stud, replaceable
Cable: Length: 10 feet (3.05 M) Connector: 15-pin D Connector
Target Cell Concentricity: ±.0005 inches to mounting stud of target
Lens Axis Squareness: ±.0005 inches/foot (.043 mm/M) to rear of target
(with R-358 Interface)
.00001 inch (0.00025 mm) Center .00001 inch/foot (0.0008 mm/M) Angular
Measurement Range: ±.050 inches (1.27 mm) Center ±0.5 degrees Angle
Linearity: Within ± .025" (0.64 mm): linearity is <1% Outside ± .025" (0.64 mm): linearity is <5%
Mounting Dimensions: 1.500" (38.1 mm) O.D. with .500" (12.7 mm) diameter concentric mounting stud


Diemensions T-261 Four-Axis Simultaneous Target