BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI - Universitatea ...

32 Eugen Străjescu et al.
The modern means for the assisted design (Catia, Solid Works, Ideas, Solid
Edge) are capable to make automatically sections in any point and after any
direction, pointing automatically distances between points or angles’ values.
In this way we can avoid the situations in which we are choosing for the
cutting tool a value for an angle at a peak, but in other sections or points the real
values are outside the domain of availability. Starting from these observations,
we want to develop a new method for the control of the manufactured cutting
tool, starting from the idea of the obtention of a solid model.
This demarche is extremely utile in the admission of the concurrent
engineering.
2. Using the Solid Model for the Cutting Tools' Control
2.1. Possibilities to obtain the 3D Models of the Real Pieces
2.1.1. The getting of the 3D model of the cutting tool by photography. The
software D Sculptor presents a relative new in the large landscape of the CAD
software and the software for treatment of the images and corps 2D and 3D. It
permits the creation on the computer photorealistic models for a large game of
objects using habitual photos, easy and fast. We do not need special hardware
elements, but only a normal
computer and a photo camera.
A digital camera is required,
but it is possible to use
scanned photos. The main
screen of the program is
presented in the fig. 1.
The basic processes for
the model’s construction are
presented down:
• it is positioned the object to
acquire the model on the
calibration plane;
• it is photographed the object
from many angles;
Fig. 1 – The main screen of D Sculptor software.
• the photos are imported in
the software D Sculptor;
• D Sculptor detects automa-ticaly the model;
• D Sculptor is calculating the three-dimensional model.
• The obtained three-dimensional model (3D) (fig. 2) can be used with software. In
time D Sculptor 2.0 was improved at a technical level and from the point of
view of the interface.