direct dimensions: 3d laser scanning for digital modeling and documentation

3D Laser ScanningFor Digital Modeling & Documentation

Company ProfileDirect Dimensions is dedicated to tackling the most difficult

challenges with the most advanced 3D technologies

available. Direct Dimensions’ staff has the tools and

experience to provide optimal solutions for any scale, from

microns to meters.

HistoryDirect Dimensions was founded in 1995 to provide 3D

solutions to the aerospace industry. Since then, we have

expanded to 25 employees and have completed over 5000

projects for automotive, industrial, medical, preservation,

consumer product, and architecture clients.

StaffDirect Dimensions scanning technicians have worked in

every environment from jungle to city center to boiler-room

basements using a variety of scanning and digitizing

platforms.

ServicesDirect Dimensions provides a wide variety of services:

• Laser Scanning

• Digitizing

• Reverse Engineering

• Digital Modeling

• Inspection/Analysis

• Replication

• Visualization/Animation

• Product Representation

• Training and Support

Industries

Aerospace Consumer Products

Automotive

Film

Mechanical Design

Medical

Art/Sculpture

ArchaeologyBuilding/Facilities

Client ListDirect Dimensions has a long list of satisfied customers, including:

Laser Scanner Target

“Time of Flight”

accurately determines

targets position in 3D

Space

Laser Outbound To Target

Laser Return Flight

The Scanning Process

ProductsDirect Dimensions is also a re-seller of a range of 3D solutions:

Scanners/Digitizers

ProductsChoosing a Laser Scanner

Feature

Size

Tim

e/A

rea

(re

lati

ve)

Resolution (inches)

Close-up

Detail

0-6 in

Artistic detail,

Bas relief

5-50 cm

Arch detail,

sculpture

25 cm – 2 m

Rooms,

Large sculpture

2 m +

Buildings,

Landscapes

10 m +

0.008 .0250.016 0.04 0.08 0.25 .5 1

= relative volume

measurementttstructured light

laser line

scanner

wide laser line

scanner

mid-range

spherical laser

scanner

long-range

spherical laser

scanner

Increasing point spacing

Incr

ea

sin

g s

pe

ed

DigitizersPortable Arm Probes

• Range = 0 to 2 meters

• Accuracy = +/- .024 mm

• Ideal Applications

• Automotive Parts

• Aerospace Parts

• Power Generation

• “Geometric” Shapes

Laser ScannersPortable Arm Scanners

• Range = 0 to 2 meters



• Dimensional Analysis

• Cad-based Inspection

• Alignment

• “Organic” Surfaces


Laser ScannersCMM

Coordinate Measure Machine

• Range = 0 to ? meters



• Dimensional Analysis

• Cad-based Inspection

• Alignment


* Must fit in the machine

3D ScannerStructured Light

• Range = .6 to 2 meters

• Accuracy = as low as .005 mm


• Small area inspection

• Miniature sculpture

• Intricate parts

Laser ScannerPatch Scanners


• Accuracy = as low as .04 mm


• Sculpture

• Face/Body

• Vehicle parts

Hemispherical ScannersPhase-Based


• Accuracy = as low as 1 mm


• Buildings

• Vehicles

• Large Sculpture

• Bridges

• “Overall” scans

ProductsDirect Dimensions is also a re-seller of a range of 3D software

Laser ScanningBenefits

Speed


Hand

Tape

Total

Station

GPS

Laser

Scanning

100s of points per day

500+ points per day

1000+ points per day

100,000+ points per second

multiple personnel

1 or 2 personnel

1 or more personnel

1 personnel

Speed


Accuracy


Anywhere from 5 microns (1/20 the thickness of an average

sheet of paper) to 1 cm (for large volume scanning).

Safety


Laser scanners can be operated remotely, allowing

personnel to remain safely on the ground.

Safety


Laser scanning is a non-contact measurement system.

Features can be recorded without disturbing fragile material.

On site access


Building Scanning

• Architectural

• Historical

• Mechanical

• Civil

Existing Conditions2D


New VA Medical Center; Phase 4

Las Vegas, NV; January 2009

Client: Clark Construction

Scope of Work:

• Direct Dimensions Inc. (DDI) digitally scanned nine rooms of the newly constructed VA Medical Center located in Las Vegas, NV.

• Two DDI technicians, 4 days on site

• DDI utilized the acquired scan data to create as-built surface models suitable for importation into client’s Navisworks software.

• Scan data accuracies of +/- 0.25” were achieved for this project

• Enhanced accuracy capabilities of +/- 0.020” are now possible

Existing ConditionsRevit

Holzapfel Hall

University of Maryland

College Park, MD

Scope of Work:

• Direct Dimensions Inc. (DDI) digitally scanned the complete interior and exterior of Holzapfel Hall.

• 100 + rooms

• 334 scans

• Two DDI technicians, 3 days on site

• Work completed while building fully furnished and operational

• All deliverables as “Native” Revit

Existing ConditionsRevit - 2D

West Section South Elevation (shaded)

Level 1 Level 2 Level 3

Existing ConditionsRevit - 3D

Point CloudPoints and

Extracted CAD

RenderedShaded CAD

Architectural Renovation

Historic ApplicationsConstruction History

Tudor Place, Georgetown

Historic ApplicationsConstruction History

Nail Location

Panel Location

Historic Preservation

3D modelDigital image

Ortho-rectified image


Historic ApplicationsFeature Replication

Monumental ChurchRichmond, VA

Historic ApplicationsFeature Replication

MEPMechanical, Electrical, and Plumbing

MEPExisting System

MEPSystem Addition

MEPSystem Addition - Revit

Civil ApplicationsInfrastructure

Civil ApplicationsLandscapeValley Forge

Civil ApplicationsSite Layout

Other Industries

Aerostructure

Automotive

Mechanical Design

Consumer Products

Sculpture

Body Scanning

Medical

3.72mm

Archaeology

Museum

Contact

www.directdimensions.com

[email protected]

Baltimore, Maryland, USA

1-410-998-0880

direct dimensions: 3d laser scanning for digital modeling and documentation

Technology

day laser

laser scannerclose

laser scanning benefits

variety of scanning

meters accuracy

productsdirect dimensions

existing conditions2d

servicesdirect dimensions