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L-702/L-702SP Spindle and Multi-Turn Alignment System 

 

The L-702/L-702SP 4-Axis Spindle & Multi-Turn Machine Alignment System is a complete alignment system for 
aligning spindles on lathes, turning centers and multi-turn machines.  There are two configurations: 
 

 

L-702

 – This version is used only to 

align spindles to subspindles, check 
flatness and straightness of the lathe 
and turning-center guideways, and 
alignment of headstocks to tailstocks. 
It can also be used to check the 
parallelism of the headstock to the 
lathe-bed guideways. 

 

L-702SP

 – This version adds an 

automatically rotating turret that 
sweeps a laser scan plane that is 
perpendicular to the spindle laser, 
which allows the capability to check 
squareness of cross slides or 
machining axes on lathes and multi-
turn machines.  With an added 
magnetic leveling base accessory, the 
L-702SP can also be used to check 
machine leveling, alignment and axis 
squareness.   

 

System Features 

 

 

Fast

: Easy setups let you do a quick alignment check in 20 minutes and get full alignment data in 30-40 minutes 

on most machines. 

 

 

Easy

: Laser and target mount directly into the spindle and tailstock, respectively, allowing the entire length of 

even the largest lathes to be quickly and easily aligned without changing setups, replacing cumbersome and 
impractical alignment test bars.  With built-in squareness capability, checking cross-slide squareness is a 5- 
minute operation 

 

 

Accurate

: Ultra-high resolution of up to .00001 in. (0.00025 mm) combined with software to correct mounting 

errors produces a very accurate alignment, less than .0001 in. (0.0025 mm) and .0001 in/ft (0.0083 mm/m) under 
good environmental conditions. 

 

 

Lathe9 Software:

 Large, easy-to-read alignment displays, live alignment data and spindle graphics, and a six-

step procedure that guides users through the alignment with on-screen help instructions. 

 

 

Spindle8 Software:

 Designed for transfer-line spindle alignments, Spindle8 features large, easy-to-read 

alignment displays, live alignment data and spindle graphics, and a four-step procedure that guides users through 
aligning spindles to master parts on transfer-line spindle applications 

 

Summary of Contents for L-702

Page 1: ......

Page 2: ...icles 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 equipm...

Page 3: ...11 Qualifying the L 702 Laser Beam to a Spindle AOR 12 The NORMIN Method 12 Adjustments 13 Pitch Yaw Adjustment 13 Hardware Requirements 13 Spindle Qualifying Procedure Using Lathe9 Software 14 Setup...

Page 4: ...quick alignment check in 20 minutes and get full alignment data in 30 40 minutes on most machines Easy Laser and target mount directly into the spindle and tailstock respectively allowing the entire...

Page 5: ...n milling axes Built in levels on the sides provide easy indexing when inverting for error correction readings A 0 50 in 12 7 mm mounting stud simplifies fixturing and can be removed to adapt the unit...

Page 6: ...er rotation and create a scan plane Press it again to turn it off Note The Pentaprism in the turret will need to be pivoted into place to create the scan plane See Switching L 702SP Turret into Scan M...

Page 7: ...4 L 702 L 702SP Laser Dimensions...

Page 8: ...utlined in Appendix C beginning on Page 31 Figure 6 T 261 Four Axis Target The R 358 Computerized Interface The R 358 Computer Interface provides high accuracy resolution is 00001 in or 0 0005 mm for...

Page 9: ...r beam A V angular value indicates the back of the target is higher than the front of the target A V center value indicates the target is lower than the laser beam A V angular value indicates the back...

Page 10: ...ck AOR Hardware Mounting Both the L 702 L 702SP Laser and T 261 Target have a standardized 4995 in 12 69 mm mounting stud that simplifies fixturing and that can be removed to adapt the unit to custom...

Page 11: ...rget is purchased separately it should be calibrated before use This can be done at the factory or on site using the A 807 Calibration Fixture and Read8 available for purchase from Hamar Laser The pro...

Page 12: ...s to the computer through the USB port Installing the Driver 1 Insert the Flash drive in an available USB port 2 Select My Computer locate the REMOVABLE DISK icon and click to open it 3 Select the US...

Page 13: ...nal splitter cable Make sure to screw in the flat head screws to securely hold the connector in place INPUT Front Back Note The R 358 power is turned on by the software when you click any of the Lathe...

Page 14: ...s which are always there After the alignment it is always a good idea to re qualify the laser to its mounting stud which puts the L 702 angular adjustments in the center of their adjustment range To r...

Page 15: ...fixture is rotated 180 degrees to the INverted cable up or switch panel facing away from you position and a second set of readings obtained With a quick calculation the two sets of readings are averag...

Page 16: ...have a coarse and fine function Coarse Adjustment tighten the set screw to disable the fine adjustment Fine Adjustment loosen the set screw with the provided Allen wrench to enable the fine adjustment...

Page 17: ...k and tailstock spindles Mount the laser in the headstock spindle and the target in the tailstock or the T 230 Target Stand Both the laser and target should be in the NORMal position The NORMal positi...

Page 18: ...y 5 seconds Ensure the bubble level is in the center of the circle Note Do NOT rotate the laser in the chuck Always rotate the laser and spindle TOGETHER as one unit 7 Click RECORD Click or press Reco...

Page 19: ...button will turn gray Click Offset again to turn them back on 10 Adjust the V and H Angular slope adjustments Turn the Pitch and Roll adjustment knobs until the Slope values in the Step 2 display are...

Page 20: ...17 12 See the Lathe9 Manual for information on how to check straightness of the lathe bed guideways and parallelism of the headstock to the guideways...

Page 21: ...can measure straightness and squareness of a cross slide axis or of a multi turn machining axis To measure a cross slide or a machining axis of a multi turn machine the A 1519 2 4ZB Single Axis Wirele...

Page 22: ...beam that emits from the side of the spindle which is then rotated to create the scanning laser plane The flip mechanism is controlled by a screw in the top of the spindle Use a standard screwdriver...

Page 23: ...oss slide using custom fixturing or the magnetic base that comes with the target Adjust the height of the target so the laser plane is in the middle of the window by rotating the turret by hand to see...

Page 24: ...xis and Take Measurements Move the cross slide axis a short distance and note the value on the readout Write down the readings and the distance traveled Any deviations from zero are a measure of squar...

Page 25: ...Page 19 2 To Measure X Axis Straightness in C and Squareness to C Attach the A 1519 2 4ZB Target to the spindle using custom fixturing or the magnetic base that comes with the target Adjust the heigh...

Page 26: ...have to be mounted to the side of the headstock spindle and bucked in to the Y axis with the A 1519 2 4ZB mounted on the side of the X axis spindle Alternatively the L 742 Dual Scan or L 743 Triple Sc...

Page 27: ...tall the T 261 4 Axis Target into the machining spindle Move the machining spindle until the T 261 is close to the L 702SP within 4 in 100 mm In Lathe9 take data in Step 3 see the Lathe9 Manual by mov...

Page 28: ...25 7 Lathe9 Step 3 and Results Screen...

Page 29: ...involved in bore alignments True Bore Center Target Center and Laser Reference Centerline If mounting fixtures were perfect the Target Center would be located at the True Bore Center and if perfectly...

Page 30: ...he readout are also rotated Therefore although the Target Center appears to be to the right of and lower than the Laser Beam Center in Figure 20 the vertical readings will be positive and the horizont...

Page 31: ...ng errors The word is a contraction of NORMal INverted which briefly describes the method To take NORMIN readings the laser and target fixtures are set in the NORMal position cable down and the readin...

Page 32: ...et To measure both the angle and center a two axis target with an angle module the T 212 or a four axis simultaneous target such as the T 261A is required If the laser is being qualified to its own mo...

Page 33: ...002 would be the vertical angular set point Use the two vertical angular readings to calculate the set point for vertical angle The horizontal angle set points would be calculated in the same way 4 Ad...

Page 34: ...nually or calibration may be done automatically by the program Calibration Setup 1 Mount the laser and target Note Figure 22 shows the target mounted in the Hamar Laser A 807 fixture stand In order to...

Page 35: ...e horizontal axes see Figure 22 If working with a fixture that has a horizontal micrometer there is no need to rotate the target see Figure 23 Figure 25 Channel Port Selection Screen Figure 26 Calibra...

Page 36: ...record the reading 5 Re zero the target Turn the micrometer 025 in one full turn in the direction opposite that in Step 3 You are now ready to record the next calibration factor Note If using the Mod...

Page 37: ...025 in one full turn moving in the same direction as Step 1 This corresponds to Step 2 on the Calibration Screen The displayed reading should be close to 025 for the positive factors and close to 025...

Page 38: ...is connected to R 358 Check connectors for broken pins or wires Check for kinks in the cables Ensure laser is powered on Ensure laser beam is bright use white paper to see beam Ensure the beam is hit...

Page 39: ...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 op...

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