OMEGA® Scanner 3D
User’s Guide
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Information in this document is subject to change without notice.
No part of this document may be reproduced or transmitted in any form or by any means, electronic or
mechanical, for any purpose, without the expressed written consent of The Ohio Willow Wood Company.
© Copyright 2014 The Ohio Willow Wood Company. All rights reserved.
OMEGA® is a registered trademark of The Ohio Willow Wood Company.
Names and examples used in this document are fictitious unless otherwise noted.
Published By
The Ohio Willow Wood Company
Mt. Sterling, Ohio
USA
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TABLE OF CONTENTS
Introduction ...................................................................................................................................................4
System Requirements ...............................................................................................................................5
Hardware .........................................................................................................................................................6
Scanner Components ...............................................................................................................................7
Setup ..............................................................................................................................................................8
Calibration ......................................................................................................................................................9
Scanning ..........................................................................................................................................................11
Maintenance................................................................................................................................................. 13
Technical Specifications ......................................................................................................................... 14
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INTRODUCTION
Highly accurate, portable, and intuitive, the OMEGA Scanner 3D provides a precise,
fast method for non-contact prosthetic and orthotic shape capture.
The OMEGA Scanner 3D projects a white light fixed pattern onto the surface to scan.
The distortion of the pattern allows the system to determine the position and shape
of the surface. When the surface being scanned does not cause sufficient distortion of
the light pattern, reflective targets can be applied to the surface to provide additional
detail.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT
This equipment is not intended for sale to the general public and is only provided to
trained clinical personnel.
Please do not use conventional disposal methods; return after the end of the product's
life to the following address:
WillowWood
15441 Scioto Darby Rd.
Mt. Sterling, OH 43143
USA
740.869.3377
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RECOMMENDED SYSTEM REQUIREMENTS
Operating System Windows 7 (64 bit)
CPU Core i7 (4+ Cores)
Graphics NVIDIA Quadro K1000m or greater
Memory 8 GB
Hard Drive 320 GB
Expansion Slot 2.0 USB port
Display 1920 x 1080
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HARDWARE
The OMEGA Scanner 3D and all necessary hardware fit into a protective case
equipped with a custom foam insert to ensure that every part has its place.
The calibration plate is located under the foam insert.
Flash Drive
USB Cable
Positioning
Targets
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Power Supply
OMEGA Scanner 3D
SCANNER COMPONENTS
White LEDs
(1 set of 4
around the
camera)
USB
Camera
Trigger
White Light
Projecter
Only WillowWood staff or authorized technicians are authorized to open the
scanner or any of its components. Unauthorized opening of the scanner or its
components could cause inadvertent damage and will void the warranty.
Please contact WillowWood in the event of any trouble or malfunction.
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SETUP
Important: DO NOT connect the scanner until Step 3.
1. Plug the power supply in to a wall
outlet or power bar. Connect the
other end to the USB cable.
2. Plug the USB cable into one of the
USB 2.0 ports on the computer.
If you purchased the computer from
WillowWood, the correct port will be
labeled.
3. Plug the USB cable into the scanner.
After completing a scanning project, unplug the scanner from the USB cable before
disconnecting anything else.
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CALIBRATION
Changes in the environment such as temperature or pressure variations may modify
the Scanner's mechanical configuration. To ensure the quality and accuracy of the
data acquired by this high precision equipment, calibration is recommended at the
beginning of each scanning session.
Calibration is accomplished using the calibration plate that was included with the
Scanner. The calibration plate should be at a temperature close to factory calbration
conditions (20-22° C, or 68 - 72° F).
The reflective targets on the calibration plate do not have the same coating as the
targets used for scanning. As a result, the calibration targets have a greater sensitivity
to exterior contaminants. If you touch the targets on the calibration plate with your
fingers or with any other oily substance, the calibration plate will have to be
replaced.
1. The first step depends on the software you are using:
• For OMEGA, click in the
Scan Shape step in the Capture
Stack, then select Calibrate
Scanner.
2. When the Scanner Calibration
screen appears, click Acquire.
3. Lay the calibration plate on a
stable and level surface. Make
sure that there are no reflective
objects nearby.
• For Tracer Version 12.2, select
Capture with Omega Scanner
from the Start screen, then click
Optimize Scanner.
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4. While holding the Scanner perpendicular to the calibration plate, point the Scanner
at the center of the plate. Bring the Scanner closer or farther to the plate to
position the white projection within the green square. Repeat for each of the
required distances.
Tips:
• Make sure to hold the Scanner perpendicular to the plate.
• Move the Scanner at a steady and slow speed.
• Once the first position is matched, slowly move the Scanner straight up for the
other 9 positions.
5. Once all 10 positions have been
matched, press the Optimize
button and follow the recommendations displayed in the
Scanner Diagnostic area.
If the calibration procedure fails, check the following:
• If there are any reflective objects near the calibration plate, remove the objects and
repeat the calibration process.
• Verify that the targets on the calibration plate are in good condition. A single
damaged or misplaced target will cause the calibration to fail.
• Click on the Default button to restore the factory setting, and repeat the
calibration process.
If these steps fail, please contact WillowWood for assistance.
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6. Click OK to finish.
SCANNING
Before scanning the patient, apply reflective targets to any landmarks you wish to
capture.
Note: targets cannot be applied on the edge of a surface to be scanned; there must be
at least 1/2" between a target and the edge of the surface.
Stand-Off Distance: 40 cm (~16")
Depth-of-Field:
25 cm (~10")
Field of View:
30 to 55 cm (~12 to 22")
When you are prompted by the software to scan the model:
• HoldtheScannerapproximately15"fromthepatient’sbody
• AimtheScanneratanareaofthesurfacethathasthegreatestamountof
topographical detail.
• Pressthetrigger.
The Scanner's lights will help you to aim the Scanner correctly:
Scanner is running
Scanner is too close
Distance is OK
Scanner is too far
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IfyouhavedicultygettingtheScannerto"lockon"sothatthegreenlightislit,you
may need to apply more targets to the surface.
Once you have positioned the Scanner so that the green light is lit, move the Scanner
around to follow the contours of the shape.
Helpful Tips:
• Hold the Scanner so that it is perpendicular to the surface being scanned.
• Keep your wrist locked, hold your elbow to the side of your body, and move the
Scanner by moving your body.
• Attempting to scan a surface simply by flexing and extending your wrist (as if you
were painting with a brush) will not be eective.
• Avoid scanning any parts of the body that are moving; for example, if a child's
shoulders are moving during a cranial scan, avoid scanning the shoulders.
• You may release and press the trigger as often as desired; however, when you
resume scanning, be sure to resume in an area that has already been captured
before moving to an area that has not yet been captured.
As you scan, you will see the model being built on the computer screen. The model will
be somewhat rough in appearance; you will see a smoother version as you advance
through the software.
Release the trigger when you are done.
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MAINTENANCE
General Maintenance
The OMEGA Scanner 3D contains optical precision parts and must be handled with
care to avoid damaging its internal components or calibration system. It must be
carried in its protective case at all times. The system must be stored in a dry and
dust-free place and must be kept at room temperature.
While not being used, the scanner must be placed in its protective case.
Metal and Plastic Parts
1. Do not use solvent to clean the device.
2. Use a soft cotton cloth with a small amount of water or a soapy solution.
Optical Parts
Optical parts require very special attention to ensure optimal quality:
1. Spray dry air to remove any particles that may scratch the surface of the lenses
and lights.
2. Clean the objectives and lights using a damp cloth like the non-abrasive optical
towelette provided by Creaform or a microfiber cloth.
3. Wipe them with a clean and dry cloth, like a towelette or wipe.
4. Repeat steps 2 and 3 if necessary.
Calibration Plate
Do not touch the reflective targets on the calibration plate. If any of the targets get
scratched or marked, the calibration plate should be replaced.
Dirty targets may be cleaned with very special care:
1. Use a soft clean cloth with denatured alcohol to gently dab the retro-reflective
surface.
2. Do not use acetone or other solvent to avoid permanently damaging the targets.
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TECHNICAL SPECIFICATIONS
Weight 850 g (1.9 lb)
Dimensions 96 x 140 x 258 mm (3.8 x 5.5 x 10.2 in)
Light Source White light (LED)
Measurement Rate 550,000 measurements/second
Resolution 1 mm (0.04 in)
Accuracy Up to 0.500 mm (0.02 in)
Volumetric Accuracy* 0.500 mm/m (0.02 in/ft)
Stand-O Distance 400 mm (15.75 in)
Depth of Field (from stand-o distance) 250 mm (10 in)
Scanning Area 380 x 380 mm (15 x 15 in)
Connection Standard USB 2.0
*With reflective targets or an object presenting sufficient geometry.
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15441 Scioto Darby Road
Mt. Sterling, Ohio 43143 USA
Phone: 740.869.3377 or 800.848.4930
Fax: 740.869.4374
www.willowwoodco.com
Ohio Willow Wood Company B.V
Keizersgracht 62/64
1015 CS Amsterdam
The Netherlands
PN-2321-A 20 FEB 2014
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