Nutfield Technology 3XB User manual

Nutfield Technology, Inc.
1 Wall St., Suite 113
Hudson, NH 03087
USA
91-0017 Rev. E
3XB
3-Axis User Manual

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This Page Intentionally Left Blank

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Table of Contents
1. Copyright Notice 4
2. Safety Precautions 5
3. Laser Shutter Installation 6
4. Installation Safety Requirements 7
5. Safety Precautions During Usage 7
6. Introduction 8
7. Unpacking 9
8. Setup and Connection Guide 10
8.1 Generate the Correction File 11
8.2 Mount the 3-Axis Scan Head and Laser 12
8.3 Set the Working Distance (Y-Radius) 12
8.4 Connect the Scan Controller 12
8.5 Start the WaveRunner application. 13
8.6FocusAdjustment 13
9. Connections 16
10. Specifications 17
PowerRequirements 17
Environmental 17
SizeandWeight 17
11. Outline Drawing 18
12. Service and Support 19
13. Return Procedure 19
14. Contact Information 19
15. Warranty 20
Appendix - A CorCalcII Information 21
A.1 10mm Aperture, 266nm, 6.0mm Entrance Beam 22
A.2 10mm Aperture, 355nm, 1.31mm Entrance Beam 23
A.3 15mm Aperture, 532nm, 4.0mm Entrance Beam 24
A.4 30mm Aperture, 1064nm, 8.10mm Entrance Beam 25
A.5 30mm Aperture, 10.6um, 11.55mm Entrance Beam 26
A.6 45mm Aperture, 10.6um, 14mm Entrance Beam 27
A.7 30mm Aperture, Dual Wavelength (532nm and 1064nm)
6.10mm Entrance Beam 28
A.8 30mm Aperture, 355nm, 3.5mm Entrance Beam 30
A.9 30mm Aperture, 532nm, 6.0mm Entrance Beam 31
Appendix – B Typical System Block Diagram 32

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1. Copyright Notice
Nutfield Technology, Inc. (NTI) has produced this document for internal use and for use by its
licensees, and potential licensees. Use of this document does not grant the user any license or
warrantee beyond the terms and conditions set forth in the written contracts and license
agreements between Nutfield Technology, Inc. and its customers. NTI reserves the right to
change the products described in this document as well as information included herein without
notice. Refer to your License Agreement for restrictions on use, duplication, or disclosure.
Government users and prime contractors are also governed by the following restricted rights
legend:
RESTRICTED RIGHTS LEGEND. Use, duplication, or disclosure by the U.S. Government
is subject to the Rights in Technical Data and Computer Software clause at DFARS 252.227-
7013 © (1) (ii) (Oct. 1988) and FAR 52.227-19 © (June 1987) or other agency provision is as
applicable.
Copyright © 2010 Nutfield Technology, Inc. – All rights reserved under the copyright laws of
the United States of America.

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2. Safety Precautions
Nutfield Technology products are designed to provide maximum flexibility and ease of use.
Such a design inherently requires the user to assure the overall safety of the configuration in
use. Please follow carefully the requests for the different laser classes.
It is the user's responsibility to ensure that the following is understood:
a. Before installation or usage of a laser system you have to be aware about the regulations
on laser safety.
b. During maintenance activities of laser systems the laser safety classes may change. In that
case the customer has to take appropriate actions in advance.
c. Certified lasers contain features to assist in their safe usage. These protective features and
the protective features within the Nutfield Technology products should not be defeated.
Prior to operating any configuration of the Nutfield Technology Scan Heads, you must
make a thorough analysis of system safety. Key information for this purpose is contained
in this manual. You must thoroughly familiarize yourself with all this information before
proceeding.
The first consideration in a safety analysis is the laser mated to the Nutfield Technology
product. The hazard level of the laser is roughly indicated by the Laser Class label that is on
the device. A brief description of the radiation classes are shown in the following table.
Note that besides radiation, lasers may present other hazards, e.g.; electric shock or creation of
poisonous fumes.
Classes and
Characteristics
of Lasers LASER CLASS DESCRIPTION
Class I Lasers are not considered to be hazardous.
Class IIa Lasers are hazardous if viewed for periods greater than
one thousand seconds.
Class II Lasers are chronic viewing hazards.
Class IIIa Lasers may represent acute, intrabeam viewing or chronic
or acute viewing hazards when viewed with optical
instruments.
Class IIIb Lasers are an acute hazard to skin and eyes from direct
radiation.
Class IV Lasers are an acute hazard to skin and eyes from direct or
scattered radiation.

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Nutfield Technology Scanners provide you with the ability to aim the laser beam over a
roughly polyhedral (pyramid) volume. The divergence of the focused beam beyond the focal
point, which is a function of the lenses selected and their position, can cause radiation to exit
the pyramid. When analyzing safety, you must consider all regions within this aiming pyramid,
the divergent beam, and the effects of all focal possibilities in the zone of hazard. Reflections must
also be considered.
3. Laser Shutter Installation
The laser attenuator (shutter) is not included with the scanners. Because each laser is unique,
it is the user's responsibility to ensure that such a device is incorporated in the installation in
conformance with CFR regulations (1040.10[f][6]), which reads as follows:
A beam attenuator is required on Class II, IIIa, IIIb, and IV laser systems. The beam
attenuator is a mechanical or electrical device such as a shutter or attenuator that blocks
emission. The beam attenuates or blocks bodily access to laser radiation above Class I limits
without the need to turn off the laser. The beam attenuator must be available for use at all
times during operation. Power switches and key controls do not satisfy the attenuator
requirement.
The beam shutter should be installed between the laser head and the Scan Head. The
following figure shows the recommended location of the shutter.
The figure shows
the laser's internal
and external optical
path towards the
target plane,
specifically where
the hazard zones are
located as the
optical beam passes
through a Scan
Head.
Laser Scanner
Hazard Zones
of a Scan Head
SCAN HEAD

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4. Installation Safety Requirements
Because of the possible hazard increase of scanning, stopping, or slowing to an unsafe
velocity, it is required that the controller software shuts down the laser power (a scanning
safeguard).
In all cases, we recommend that you fully enclose and interlock the zone of hazard for your
application to prevent possible opening while the laser is energized. When laser radiation
exceeding Class 1 levels may exit the enclosure, you must have suitable protection for eyes
available.
At no time should you stare into the beam, place any parts of your body in
the beam path, or expose yourself to reflections of powerful beams. You
should use only a Class 1 HeNe Laser for alignment. If this is not possible,
you should use the available laser's lowest power setting and remote beam
sensing techniques.
Using optical instruments with this product increases eye hazard.
5. Safety Precautions During Usage
To maintain the necessary safety during usage of Nutfield Technology scanners please take
following actions:
a. Please avoid any mechanical tension on the interconnection cables.
b. Protect the scanners from humidity, dust and aggressive steam to avoid damages to mirrors,
objectives or electronics.
c. Always use proper lens cleaning cloth or cotton swabs to touch optical components.
d. Protect the scanners from electromagnetic fields and electrical discharges. This can severely
damage interface and servo boards. Damage to the electronic circuits caused by electrical
discharge may not make it immediately apparent – but may result in malfunction at some later
time thus affecting reliability of the product.
e. Please follow

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6. Introduction
This manual covers the installation and use of the 3XB, 3-Axis Scanning System.
Nutfield’s 3XB is designed to deliver large field sizes up to 2000mm without the use of large
scanning lenses, XY tables, or gantries. These field sizes are achieved while delivering equal to
or better, field-size/spot-size ratios then those of standard laser scanning lenses. The integrated
design leverages the best of NTI's galvo technology to offer superior bandwidth, accuracy and
flexibility in 3-axis technology.
The 3XB is the only 3-Axis Scan Head, which offers different field and spot size combinations
by simply turning a knob to adjust the spacing between the translator and objective lens. The
lens translator houses an expander lens, which accepts a beam from the laser source. The beam
expands and then travels through an objective lens, which lies in front of the X/Y scan mirrors
in a post objective scanning configuration.
The expander lens moves linearly along the axis of the beam to correct for focus, in real-time,
as a function of an X/Y position within the scan field. Nutfield offers standard lens-sets with
prescribed input beam diameters. Lens-sets are available for 266nm, 355nm, 532nm, 1064nm,
10.6um, and Dual Wavelength 532nm and 1064nm. A full complement of fixed beam
expanders is also offered to properly adjust the laser’s beam size for the optical design.
Correction files are critical to any scanning application; 3-Axis systems are no different.
Further, 3-Axis systems require a 3rd, Z-Axis focus correction. CorCalcII is a utility offered
with 3-Axis systems to ease the generation of correction files, and also allow the operator to
quickly adjust working distances, and field sizes to optimize the system’s spot size for the
application.
3-Axis systems are designed to operate seamlessly with Nutfield’s WaveRunner Laser
Scanning Software, and Surfboard Laser Scan Controller Hardware.

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7. Unpacking
a. Carefully cut the packaging tape to open the shipping box.
b. Inside the shipping box, you will find two items:
-3-Axis System
-25-Pin XY2-100 interface cable
c. Remove the 3XB from the shipping box, and place on a table top; remove the packing material,
and the protective plastic bag.
d. Remove the cover from the 3XB by removing eight 1.5mm button-head socket cap screws.
e. The Linear Translator’s lens carriage is secured during shipment with a nylon screw through its
housing firmly locating the lens carriage to one side. Locate the Linear Translator and remove
the tagged shipping restraint from the linear translator.
f. Remove any dust coverings from the input and output apertures.

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Y-GALVO
X-GALVO
8. Setup and Connection Guide
COVER X-SERVO Y-SERVO Z-SERVO D/A RECEIVER BOARDS (X/Y & Z)
NOTE: YOU MUST PROVIDE AN INPUT LASER BEAM ACCORDING TO THE
CORCALCII TABLES FOUND IN THE APPENDIX.
NOTE: TO GET THE SPECIFIED SPOT-SIZE, A BEAM EXPANDER MAY BE
REQUIRED TO UP-COLUMNATE, OR DOWN-COLUMNATE THE INPUT
LASER BEAM.
25-PIN XY2-100
INTERFACE
9-PIN POWER
CABLE TO
+/- 15VDC P.S.
INPUT
LASER
BEAM
FOCUS ADJUST
Y-MIRROR X-MIR.
OUTPUT BEAM
MARKING FIELD
OBJECTIVE LENS
LINEAR TRANSLATOR
Linear Translator
Shipping Restraint

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8.1 Generate the correction file
a. Open CorCalcII.exe the Nutfield supplied Correction File Utility. The following screen
will appear. In a typical installation, the CorCalcII Installation can be found in the
directory string \Scanner Application\Scanner Software\doc\CorCalcII V3.0 Install
NOTE: See Appendix A for wavelength specific CorCalcII Input values.
b. In the Input Field, all of the values are predefined by the optical design EXCEPT for the
Requested Field and the Y-Radius. These are the only two fields that are customer
adjustable.
c. Enter all predefined values, and Requested field. Typically the Y-Radius needs to be
20% larger that the Requested Field value.
d. Click the Validate Value Button. If the Requested Field/Y-Radius ration is acceptable,
the Outputs values will be calculated. If not, an error message will appear that reports
Reduce Requested Field. In this case, reduce the Requested Field value, or increase the
Y-Radius value and Click the Validate Values Button again. Continue this process until
the Output values are calculated.
e. Once you are satisfied with the Output values, click the Calculate Table Button. This
will generate the correction file for your system.
f. Click the File menu item, and save the correction. Note the file location on the
computer because you will need to point the WaveRunner Software to this file.

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8.2 Mount the 3-Axis Scan Head and Laser
Note: All mechanical mounting needs to have enough adjustability to accommodate
system optical alignment.
a. Kinematically mount the 3XB and the laser to a rigid structure MAKING SURE not
induce any mechanical distortion to the 3XB or the Laser though the act of fastening the
equipment to the structure.
b. Install any ancillary components. For example, laser mounts, beam expanders,
mechanical shutters, etc. Again, mount these to a rigid mechanical structure to avoid
misalignment.
c. Align the laser through the 3-Axis system. Confirm the beam’s centration through the
Lens Translator, Objective lens, X and Y mirrors, and output aperture.
8.3 Set the working distance (Y-radius)
Referring to the Section 11, Outline Drawing, use a scale to set the working distance from the
3XB to the work surface.
8.4 Connect the Scan Controller
NOTE: 3-Axis systems are typically shipped with Surfboard, or Pipeline laser scan
controller hardware. The following instructions are for both styles of hardware.
NOTE: 3-Axis systems are designed for specific wavelengths, NOT specific laser
manufactures or laser models. Laser’s control interface varies greatly from laser-to-laser,
and manufacturer-to-manufacturer. Laser Scan Controllers, either Surfboard or
Pipeline, have all of the required signal outputs to operate most laser interfaces. Nutfield
does supply laser control interface cables for some, but not all lasers. If a laser interface
cable is not supplied, it is the customer’s responsibility to understand, and properly
connect the scan control hardware to the laser’s interface.
a. Connect the 25-pin XY2-100 Interface Cable from the Scan Controller’s XY2-100 port to
the 3XB’s XY2-100 (DATA) interface. Secure the connectors using the captured Jack-
Screws.
b. Connect the laser interface cable from the Scan Controller to the laser. Reference the
Surfboard or Pipeline User Manual, and the manual supplied with your laser.

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8.5 Connect the Power Supply
NOTE: 3-Axis systems are typically shipped with an external power supply and cable
with a 9-pin connector. If you have not ordered a power supply with your 3-Axis system,
reference the Specifications section of this manual for detailed power requirements.
a. Confirm the primary power is not connected to the power supply and it is not powered
ON.
b. Connect the 9-pin power cable to the 3XB’s Power Input connector.
8.6 Start the WaveRunner application.
a. Using the supplied USB cable, connect the Scan Controller to the PC.
b. Open the WaveRunner application by Clicking on the WaveRunner icon.
c. When asked for the License Key, enter the 16 – 24 character code supplied with the
Scan Controller.
d. Once the application opens, pull down the Settings menu, and go to the System
submenu. Under the System menu, click the Optic Tab.
e. In the Lens field, click the Browse button. Point WaveRunner to the correction file you
generated previously using CorCalcII. Note that the Size field now represents the
Requested Field entered into CorCalcII.

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f. Click the Advanced Button Under the Optic Tab.

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g. In the Mode field, select the appropriate laser type.
h. Power ON the 3XB’s +/-15VDC power supply.
NOTE: GREEN LEDs will be illuminated on the 3XB’s servo boards. There should
be no RED LEDs illuminated, the galvo’s mirrors should be stiff and not be
moving.
i. Power ON the Laser Power Supply. Test fire the laser and confirm its output.
8.7 Focus Adjustment
a. Confirm the Y-Radius is set properly. Reference the Outline Drawing in Section
11.
b. In the WaveRunner application, draw a small ~1cm x 1cm entity in the middle
of the mark field.
c. Place a piece of scrap material in the center of the mark field.
d. In WaveRunner, select the Mark menu item, and the submenu Start. A Mark
field will appear, click the repeat check box, then the Start Mark button.
CAUTION: The following step will cause the laser to fire. Take all appropriate
precautions.

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e. Rotate the Focus Knob back-and-forth to achieve the brightest plume of light at
the work surface. This method of focusing will achieve the most ideal focus
taking all system tolerances into consideration.
The system should now be ready for use.

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9. Connections
INTERFACE PIN ASSIGNMENT
25 Pin D-Sub female, XY2-100
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
- SENDCLOCK
+ SENDCLOCK
- SYNC
+ SYNC
- X-DAC CHANNEL
+ X-DAC CHANNEL
- Y-DAC CHANNEL
+ Y-DAC CHANNEL
- Z-DAC CHANNEL
+ Z-DAC CHANNEL
- STATUS RETURN
+ STATUS RETURN
don’t connect
don’t connect
don’t connect
don’t connect
don’t connect
don’t connect
NC
NC
NC
NC
NC
don’t connect
don’t connect
INTERFACE PIN ASSIGNMENT
9 Pin D-Sub male connector for
power supply
5
9
4
8
3
7
2
6
1
+VSS
+VSS
+VSS
GND
GND
GND
-VSS
-VSS
-VSS

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10. Specifications
10.1 Power Requirements
Voltage ±15Vdc - ±18Vdc
Current ±5A rms, 10A peak
NOTE: A power supply with sufficient output current should be used. The output current
required depends on the supply voltage, galvanometer model, mirror load, and command
waveform and duty cycle. Lower supply voltages, larger galvanometers, larger mirrors,
and more demanding waveforms and duty cycles will require more current. It is a good
practice to setup your application with a laboratory power supply and measure the
required current during the most demanding application your system can run. Then
select a power supply appropriate for your application.
Select a high quality power supply with good clean DC outputs. Power supplies with
excessive ripple or noise will cause scanning problems in your system.
The electronics internal to the 3XB have generous output capacitors that supply
instantaneous peak current to the output drive amplifiers, and lower the peak output
requirements of your system power supply.
10.2 Environmental
Operating Temperature: 0°C to +45°C (with appropriate cooling)
Storage Temperature: -10°C to +60°C
Humidity: Non-Condensing
Temperature Stability: 10 PPM per °C Standard
10.3 Size and Weight
Size 484.58mm (19.05in) x 246.87 (9.68in) x 215.7 (8.49in)
Overall - See Outline drawing for specific information
Weight13.6kg (30.0 lbs)

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11.0 Outline Drawing

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12.0 Service and Support
Your satisfaction is important to us. If you need assistance please contact your local
representative first. If the local representative is unable to assist you, contact NTI at the address
below.
13.0 Product Return Procedure
If a product is to be returned to the factory, please go to our web-site:
http://www.nutfieldtech.com/nutfield/service.asp
and fill out the RMA request form.
14.0 Contact Information
Nutfield Technology, Inc.
1 Wall St., Suite 113
Hudson, NH 03087
USA
TEL: [phone]
FAX: [phone]
www.nutfieldtech.com
[email protected]