Roland LPX-250 - page 36

This example involves using the two scanning modes to scan an object that has a nearly cylindrical shape. You can use either mode for

scanning, but rotary scanning achieves the shortest scanning times. The scanning pitch is equivalent for both, but rotary scanning produces

smoother surfaces.

Rotary scanning

Pitch of 1.4 mm x 1.6 degrees

Scanning time of 3 minutes 30 seconds

Plane scanning

Pitch of 1.4 mm x 1.4 mm

Scanning time of 6 minutes

This is an example of an object finished using rescanning after rotary scanning and an object scanned using plane scanning. To determine

which of the two modes to use, you should decide how much you want to take advantage of the features of rotary scanning. Using plane

scanning eliminates the need to perform rescanning, but if smooth curves are important, then rotary scanning may be more effective.

Rotary scanning

(with finishing by rescanning)

Plane scanning

(four scanning surfaces)

4. Case Studies for Better Scanning

Contents

Main LPX-250 USER'S MANUAL For the USA FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT For Canada CLASS A NOTICE CLASSE A AVIS To Ensure Safe Use About and Notices About the Symbols Page Important Cautions Regarding Laser Light Items That may Not Be Copied About the Labels Affixed to the AC Adapter and Unit Table of Contents Copyright 2001 Roland DG Corporation http://www.rolanddg.com/ Part 1 Startup Part 2 Basics of the LPX-250 Part 3 Basic Operation Part 1 Startup 1. Checking the Accessories 2. Three Manuals for Using the LPX-250 3. LPX-250 System Configuration Scanning program Dr. PICZA3 3D-data editing program 3D Editor 4. Names and Functions Head retainer 1 Caps Head retainer 2 Head retainer 3 5. Installation and Cable Connections Removing the Head Retainers and Installing Connect the Cable Back of the scanner Computer COM ports 6. Switching the Power On and Off and Opening and Closing the Door Steps for Switching On the Power Switching Off the Power Opening and Closing the Door 7. Preparing the Programs Programs Installed and Set Up System Requirements Steps for Installing and Setting Up the Programs Starting Dr. PICZA3 Selecting the Communication Port Page 2. Suitable and Unsuitable Objects for Scanning Mounting Orientation for the Scan Object 3. Plane Scanning Features of Plane Scanning 4. Rotary Scanning Features of Rotary Scanning Finishing by Rescanning 5. Mounted Position of the Object and the Scannable Area Yes No Rotary Scanning Effective Sensor Area No Yes No Part 3 Basic Operation 1. Getting Ready to Scan Selecting a Scan Object Deciding on the Scanning Mode Mounting the Scan Object 2. Scanning Operation 3. Viewing the Results of Scanning Manipulating the Perspective and the Zoom Rate Changing the Display Method 4. Saving Data Saving in Dr. PICZA Format Exporting Data Page Detailed Scanning Conditions 2. Detailed Settings for Rotary Scanning Scanning Using Manual Settings Detailed Scanning Conditions 3. Finishing Detailed Areas Using Rescanning Finishing Areas That Could Not Be Scanned Areas joined because the laser light does not reach Areas with holes due to surface drop-out Page Scanning a Specific Area in Greater Detail 4. Case Studies for Better Scanning Scanning Results for Objects That Are Difficult to Scan Choosing the Scanning Mode Page The Scanning-start Direction for Plane Scanning Object Mounting Location for Rotary Scanning Part 5 Editing Scanning Results -- Using 3D Editor 1. What You Can Do Using 3D Editor 2. Importing and Exporting Data Importing Scanning Results Immediately Exporting Data in Other Formats Importing More Than One Set of Data 3. Basic Operations for Objects How to View the 3D Editor Window Let's Try Editing Data with 3D Editor Page Part 6 Troubleshooting Page Part 7 Appendix 1. Sample Data Sheet 2. Table Dimensional Drawing 200 254 XY-RS-34/14 cable connection Serial connector (RS-232C) 3. Specifications Please read this agreement carefully before opening the sealed package or the sealed disk package Roland License Agreement