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19 

 

2.

 

Coarse level the laser. 

Power on the laser and use the speed control knob on the control panel slow the scanner spin until you 

can see the laser beam pass over the target (the farther away the target is located, the slower the 

scanner must spin). Turn the light switch for the bubble level vials ON.  Using the adjustment knobs 

and observing the position of the precision level vials, coarse-level the laser so that the laser plane is 

approximately parallel to the surface. 

 

3.

 

Position and secure the target. 

Place the target in the 

Near Position

 (see Figure 12). Move the target in its magnetic base until the 

laser beam roughly hits the mid-position of the target and turn the lever on the magnetic base to ON 

to lock it securely to the metal surface. 

 

Note:  As you move the target to the Near Position, Far Position A and Far Position B, mark where 

the base of the target sits on the surface so that it may be repositioned in the same place each time. 

 

4.

 

Set the readout. 

If you are using the A-1519 or A-1520 Wireless Targets with the R-1309 system or with Hamar 

Laser’s alignment programs, set the readout display through the software. 

You may also need to adjust 

the sampling rate to dampen the effects of atmospheric turbulence in the Read15 software (or in the Hamar 

Laser alignment program you are using).  

 

Performing the Three Point Buck-In 

 

1.

 

Center the target in the Near Position. 

With the target in the Near Position, zero the target. 

 

2.

 

Move the target to Far Position A and tilt the laser beam until the readout reads zero. 

With the target in Far Position A, tilt the laser beam with the 

laser

 adjustment knobs until the readout 

reads zero.  Be sure to use 

only

 the adjustment knobs that face the target (in the setup displayed in 

Figure 12, this would be the adjustment knob marked ROLL). 

 

Note:  When the target is in the Near Position, always use the appropriate zero function to center the 

target photocell. When the target is in the Far Position, always use the laser adjustment knobs to tilt 

the laser beam.  This is easily remembered by the phrase, “Center Near, Tilt Far.” 

 

3.

 

Repeat Steps 1 and 2 until the readout reads zero with no adjustments. 

Continue to move the target between the Near Position and Far Position A, zeroing the target at the 

Near Position and tilting the laser beam using the adjustment knobs at the Far Position until the 

readout reads zero without adjustments. 

 

4.

 

Move the target to Far Position B and tilt the laser until the readout reads zero. 

Be sure to use only the laser adjustment knobs that face the target when tilting the laser beam (in the 

setup displayed in Figure 12, this would be the PITCH adjustment). 

 

5.

 

Recheck the readings at the Near Position and at Far Positions A and B and adjust to zero if 

necessary. 

When all readings are zero 

without adjustment

, the laser plane is parallel to the surface. 

 

Содержание Dual Scan L-732

Страница 1: ......

Страница 2: ...ing the alignment measurements For best results do not start taking measurements until the recommended warm time has passed It is always a good metrology practice to periodically check your reference...

Страница 3: ...ticles of equipment manufactured by other companies and limited by a warranty extending for less than one year In such an event the more limited warranty applies to said instrument or article of equip...

Страница 4: ...al Pitch Axis 13 Checking the Levels for Accuracy 13 Measurement Overview 14 Selecting Reference Points on Machine Tools 14 Selecting Reference Points on Process Mills 14 Measurement Summary 15 Measur...

Страница 5: ...sfer line wing bases Injection molding machines and presses Aircraft assembly seat track alignment setting water butt and station planes wing to body and body to body join alignment etc Roll paralleli...

Страница 6: ...and targets fit into a small portable shipping case Diode laser 2 times more stable than HeNe based laser systems Battery or AC powered Laser planes flat to arc seconds 00003 in ft or 0 0025mm m in 18...

Страница 7: ...to body and body to body join alignment etc Saw mills Vertical press alignment Measuring and aligning The flatness of almost any horizontal or vertical surface squares frames ways flanges circles etc...

Страница 8: ...p times Applications for alignments with tolerances of 00002 in ft or 0 0017 mm m or higher Roll parallelism in paper mills printing presses and film lines Leveling almost any surface squares frames w...

Страница 9: ...m stability Applications for alignments with tolerances of 00015 in ft or 0 01 mm m or greater Normal or blown film lines roll alignment Rubber roll alignment Leveling almost any surface squares frame...

Страница 10: ...ine adjustments see Figure 1 Number of laser planes the L 743 and the L 733 have three laser planes and the L 742 and L 732 have two laser planes that can be factory configured for two vertical planes...

Страница 11: ...parallel to your references However doing this may result in some laser drift Accordingly if you use the laser prior to the warm up period it is recommended that you go back and check your references...

Страница 12: ...on speed control This control slows the scanner spin until you can see the laser beam pass over the target the farther away the target is located the slower the turret must spin Figure 3 shows control...

Страница 13: ...ure calibrates only one level vial at a time and must be repeated for the other axis Note 2 It is very important to warm up the laser for at least 30 minutes before starting this procedure It is also...

Страница 14: ...alibration of the Level Vials Roll Axis Note It is very important to warm up the laser for at least 30 minutes before starting this procedure It is also very important to level both the Pitch and Roll...

Страница 15: ...tance between the points The result is the calibration of the level vial in units of in ft or mm m To be within specifications the calibration result should be as follows Split Prism Vial Assembly 000...

Страница 16: ...ulating the Calibration of the Levels Vials Pitch Axis 1 Level the laser Rotate the entire laser unit 90 to calibrate the Pitch Axis level vial Using the adjustment knobs level the laser so that both...

Страница 17: ...Pitch Axis level you are adjusting Using the wrench provided adjust the level assembly until the bubble is centered in the window for the Standard Level vials or the two halves of the bubbles line up...

Страница 18: ...rence points carefully Poor reference points like those on the heavily worn portion of a machine bed where all the work is performed may mean extra time to bring the machine back into tolerance In oth...

Страница 19: ...d one vertical laser plane are needed 1 Mount a target horizontally at the closest reference point to the laser and adjust the target so that it detects the laser 2 Zero the target and move it to the...

Страница 20: ...ts described in Measuring Straightness and Measuring Flatness to determine the straightness and flatness of the machine s axes measuring squareness is a simple process To truly measure squareness one...

Страница 21: ...e error from the laser not being parallel to the surface Level to Earth Measurements The leveling of machine tools surface plates and different types of bases can be performed using scanning lasers as...

Страница 22: ...ny three points on a surface may be used however Hamar Laser recommends the setup illustrated in Figure 12 Figure 12 Three Point Buck in Using One Target recommended setup When performing this procedu...

Страница 23: ...ing the Three Point Buck In 1 Center the target in the Near Position With the target in the Near Position zero the target 2 Move the target to Far Position A and tilt the laser beam until the readout...

Страница 24: ...he laser beam must be adjusted to be parallel to or coincident with an edge or centerline The process of making that adjustment is called bucking in This section describes two types of buck in methods...

Страница 25: ...resents the distance from the laser to the first target L2 repre sents the distance be tween the two targets If L1 is less than one tenth of L2 the normal buck in procedure is used If L1 is greater th...

Страница 26: ...ding is to L2 Stated mathematically the ratio is Set L1 Far L2 If L1 L2 and the far reading are known the set can then be determined by the following formula Set Far reading L1 L2 Note This is a simpl...

Страница 27: ...two targets When using normal buck in the rule is Zero Near Point Far Buck in the laser beam by zeroing it on the near target and then pointing the laser beam using the appropriate adjustment knobs t...

Страница 28: ...eck A C power source Use second A C power supply if available 5 Noisy target A 1519 1520 readings on PDA NOTE On average the user can expect 00002 in ft to 00005 in ft 0 0025 mm m 0 004 mm m of noise...

Страница 29: ...low or high on target window it should be near the window It is possible for the laser to activate the auto wake up feature of target but not enough of the beam is hitting the PSD target sensor to get...

Страница 30: ...ime Error in software Do not unplug the A 910 from the USB port while still using the program Report to HLI the exact key strokes that created the Runtime Error 12 Software crashes upon loading Ensure...

Страница 31: ...27 Appendix B Equipment Drawings L 733 Precision Geometry Laser...

Страница 32: ...28 L 743 Ultra Precision Geometry Laser...

Страница 33: ...29 The L 732 Dual Scan Precision Roll Alignment Laser...

Страница 34: ...30 The L 742 Dual Scan Ultra Precision Roll Alignment Laser...

Страница 35: ...ted This makes is very likely that the error in measurement at the point where the target is zeroed is nearly identical to the error in each subsequent measurement because the difference in sensor are...

Страница 36: ...ea is 1 micron or less Approx 4 mm of measuring area each vertical line on the graph equals 1 mm Total Error 3 3 microns 2 microns 2 microns 0 000 Each green vertical line equals 1 mm of measuring are...

Страница 37: ...the type intended for nail polish removal NOTE When cleaning precision optics even with the best quality optical cleaning tissue use gentle pressure to avoid scratching the surface or damaging the opt...

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