but what is it?
Until now, in order to accomplish any
object (from the glass to the hood of a car), the most common process was to create the three-dimensional digital model, which was then materially manually
(with a considerable amount of labor hours), or by means of milling (thus obtaining the object from the full,
but with a considerable waste of material and working hours).
Today you can turn any idea into a tangible object, a prototype, any shape, quickly and economically with 3D printing. By means of the various technologies of 3D printers can realize the object in different materials, which vary according to the need of the function of the same prototype responding to the specific needs such as:
must withstand high temperatures? must be functional? or purely aesthetic? etc. ..
Once the print you can see immediately if the object corresponds exactly to the project or the initial idea, without having wasted materials and labor hours. Defined the model, if you were to start a series production, we can then evaluate two ways:
- Print the whole series in 3D
- Only print a mold and use the traditional methods of casting.
The final product will in every case economic, precise, and realized in a very short time.
How does this work?
FOR THE RAPID
You just have to send the file of the model 3D CAD / CAM, and we'll take care of everything: from the development of the printing process until the completion of the finished prototype, to guarantee you complete satisfaction.
FOR THE PROJECT
You just have to send us a scan of a sketch made by hand, a CAD file to be edited, a description of your idea and we'll do everything by taking a design according to your needs and assuring you complete satisfaction.
The available technologies most commonly used
Today they are on the market different types of printing technology to create a product made with rapid prototyping.
The most used are the sintering (SLS) and extrusion (FDM) and printing with plaster dust; the main differences consist in the stratification that occurs during printing.
The method is evaluated on the basis of cost and technical specifications that the final product will be (see page materials)
Below is a brief description of the technologies mentioned above.
FDM (Fused Deposition Modeling)
ABS or PLA
Work principle of "additive", ie deposits
the material through a heated head fed from a
reel of ABS or PLA, which, moving the axes
XYZ controlled directly from a CAD / CAM software, releases
the polymer stratificandolo; lower the height of the
layers the greater the definition.
In the pre-press is essential to realize the additional supports to the model, because the nozzle during printing, issuing material very warm and soft layering and not having the time to cool down, could collapse or change the shape designed.
A quetsa technology today is the most used, both for the low management costs, both for the simplicity of use, but still of a lower quality than the sintering and stereolithography.
Laser Sintering) Sintering
METALS, CERAMICS, PLASTIC, PLASTER
Use thermoplastic powders, metal, siliceous or chalk, and by means of a laser sintering, the materials used for the construction of the prototype.
The process begins with the automatic drafting of a thin layer of powder and the laser provides the sintering where necessary. The first sintered layer a mechanism ridistende another layer of powder to then be sintered again, continuing the process until the last layer that will complete the object.
It's advantageous because you can use different types of powders and do not serve media do not collapse or deform the object.
At the end of the process will release the object from the excess powder and in case of metallic materials or ceramics will also subsequently subjected to a thermal treatment.
SLA (Stereo Lithography Apparatus) Stereolithography
Use special resins of different technical characteristics, creating objects with smooth surfaces to the touch, resistant, with sharp angles of excellent quality, vericiabili and of any shape.
They can be perfectly finished in the post printing according to customer requirements.
The original color of the object after printing can be black, white or transparent.
The technology used by the printer polimezizza a special photosensitive resin contained in a tank with a radius UVA, which affects the relevant section of the model on a mobile plate; after the first scan the plate is lowered to about 0.05 mm and the UVA ray strikes the section concerned.
For special items is necessary to ensure the parties inclined over 30 ° with support columns, which will be eliminated in post printing.
At the end of the process model is created will be placed in an oven to ultraviolet light to complete the polimeralition.