How works 3D prototyping for casting of plastic?

The term "prototyping" is a wide concept. The current version of the future car can be called a prototype - this is its functional prototype. The plaster figurine of the product, which reproduces only the geometric dimensions and shapes of the future part, is also called a prototype, although it is rather a layout.

In preparation for production for casting polyurethane products, the prototyping method is also used, or rather 3D prototyping. This is a technique for creating a physical object based on its digital 3D model. At the same time, there are such concepts as "rapid prototyping" and the "prototype" itself.

The prototype – is the initial model for making the first test piece. Later, such a model can be refined to obtain the so-called "master model". It allows you to achieve the final characteristics, shape and desired geometry of the required product. This is an essential point in the manufacture of a mold from silicone for casting of prototypes from liquid materials.

Rapid Prototyping – is a technology of quick creation of prototypes or a working model for demonstration to a customer or for testing the feasibility of implementation. It allows you to complete the amount of work in a few days, from an idea or 3D drawing to the final finished product.

Prototyping technologies used in Marabu

Among many different technologies, Marabu has chosen for itself the following most demanded on the market:

FDM printing – this method consists in layer-by-layer growth of a product from a plastic filament that has been previously melted. Suitable in cases where a product needs to be made quickly without high requirements for the quality of the final product. In addition, this type of printing is justified when the model has large overall dimensions or large volume. At the same time, it is necessary to carry out a large amount of work on mechanical surface finishing and painting. With a help of this method is difficult to manufacture parts of a complex structure with small elements. But it is already possible to assess the ergonomics, the conformity of the form to the ideas of the designer. You can understand the real weight of the finished product, evaluate the design, and determine the hardness, the required elasticity. In this case, the growing period is measured by hours.

SLA printing – is printing with photopolymer under the influence of a laser beam. The prototype obtained in this way is perfect. Having more accurate detailing, it allows you to check not only the structure and design, but also to check the product for assembly. When using SLA printing technology, an accurate and high quality prototype is obtained. The advantage of this technology is also the ability to print the entire product that means to obtain a “multibody prototype” as a result. In this case, the model requires less work, is ready for coloring and is similar to the finished product. However, the lack of products, which were made using this technology, is their insufficient strength. It is easy to break such detail and it is not always possible to check it in the operational mode.

Casting polyurethane into silicone molds – is an excellent and unique technology that allows you to combine the high quality of a properly prepared prototype with the capabilities of polyurethane and the amazing properties of silicone. The silicone mold allows you to reproduce the detailing of the product with an accuracy of 2 microns. This combination of qualities meets almost all the requirements of the designed 3D model for such product properties as: elasticity, transparency, stiffness, strength, resilience, hardness, heat resistance, color, texture, etc. The parts made in this way are completely ready for use. This technology is quite simple, but laborious, as it requires a lot of manual labor and high professionalism of the performers.

The specialists of the Marabu Company have been working on the high quality of products since 2010 and hope that they have already been able to achieve high skill in this. Satisfied clients and the growing number of new orders confirm this. The achieved level of quality of work distinguishes the Marabu Company from other companies and enterprises using this technology. This is the reason for the high cost of our work.

We use 3D prototyping technology for our main task - casting plastic products into silicone molds. We have developed unique technological solutions and formulas of liquid polymer composites, and we independently provide the entire cycle of small-scale production of plastic products.