3D scanning and Reverse Engineering

Design,

Engineering and

Reverse Engineering

REVERSE ENGINEERING:

Introduction – traditional relief

Example of output

Traditional relief

Method that uses meter, gauge, levels, lines, laser rangefinder and other tools

for the direct measurement of distances and angles.

REVERSE ENGINEERING:

3D Scanning Relief with 3D scanner

Method that employs structured light that

represents the surfaces of the object in three-

dimensional space

3D Scanning-Example

Example of a process applied to a

model of Mercedes SL

(Real object reported).

Acquisition phase made with the scanner Atos Compact Scan 2M

Single scanning

Image of all the object

Final Mesh (STL) gained

from the relief

Detail

Features and instrument parameters

Blue Light Technology

Portable measurement system

Software Gom Inspect for measurement and processing of data

Turntable for acquisition of properties

Volume

measurement

Resolution [mm]

Volume of

measurement

[mm]

Precision [mm]

MV250 0.153 mm 250 x 190 x 190 0.015 mm

MV500 0.309 mm 500 x 380 x 380 0.020 mm

Formal complexity

Shadows areas

Reproduction in scale of existent

objects

SCANNING OF EXISTING

OBJECT STL RAPID

PROTOTYPING (Stereolitography,

sintering, object, FDM)

Dimensional control, verifications of

variances.

Ability to associate the scan in Rapid Fit

Verifications of symmetry and surface

trends.

Verifications of discrepancies between

CAD and a real object (ex prototype),

between objects of the same series or

different batches (ex. Production of the

same object with different technologies),

including mold and real object.

Verifications deviations between CAD and real object

Structure for fixing the

components in their conditions of

use for the analysis of quality.

SCANNING THE EXISTING OBJECT

STL REVERSE various

- Relief for rebuilding damaged items (ex,

mold damaged)

- Relief for reconstruction of mathematical

objects non-existing (ex, the object on

which you want to start a new production

or storage.

- Relief for assembling parts or packaging

design

There are different approaches and

ways of working to “mathematize”

mesh, these changes according to the

purpose of the work and the

charasteristics of the object.

Photogrammetric Relief

Method that employs metrical rooms

or calibrated for the indirect

measurement of points in space.

1. Real object 2. Extraction of points 3. Modelling

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