3D Build: Weerg explains the advantages of nesting in 3D printing

October 25, 2021
New service for high-volume production customers New service for high-volume production customers

HP Multi Jet Fusion industrial printing systems print build structures that can be filled with hundreds of 3D objects, with the same quantity, size and shape, or with different characteristics. The production costs of a build structure are fixed, regardless of the number of parts it contains. Therefore, by optimizing the parts that constitute the structure, it is possible to reduce the unit production costs. Weerg's facility in Venice, Italy, is now hosting the largest installation of HP Multi Jet Fusion model 5210 3D printers in Europe. The company, which offers online 3D printing and CNC machining through the weerg.com platform, has developed a new product aimed at high-volume production customers, such as professional, service and industrial customers, who can now purchase a 3D Build unit.

The economic benefits of this system are related to the use of nesting, which makes it possible to assemble several parts by optimizing the content of the structure. “To ensure optimal nesting, which in theory could also be done manually with a considerable expenditure of resources, we recommend the use of specialized software, among the many available on the market”, explains Matteo Rigamonti, founder of Weerg. This type of software automatically shifts and rotates a set of 3D pieces within the structure to minimize empty space and optimize the quality and quantity of the printed parts. The user can also use the software to specify the number of parts and the minimum distance between individual parts.

The highest benefits are achieved when nesting is used to fill the full capacity of the Build 3D”, continues Rigamonti. The 3D Build technique proposed by Weerg allows 3D printing with HP MJF technology in three different materials: Nylon PA11, Nylon PA12 and polypropylene. “Since its recent launch, this new service has raised particular interest among companies that need to produce quantities in excess of their production capacity by outsourcing surplus, or that are dealing with momentary overwork or machine downtime”, says Rigamonti. “The success of this formula also derives from the extreme ease with which customers can perform nesting, sending us the 3D file of the structure with the guarantee that delivery will be made within 3 working days”.

For those who may not know, the term "nesting" comes from the English "to nest", which means to interlock and indicates an organizational technique designed to make production more efficient through the virtual pre-positioning of elements, which are interlocked with each other as in nests. To date, Weerg's 3D Build service uses HP MJF technology, which guarantees industrial performance in terms of quality, productivity, and delivery times.

To develop this service, our R&D department carried out many simulations”, explains Rigamonti. “If users who buy the structure take advantage of its full capacity through optimal nesting, they can benefit from savings of up to 60% compared to what they would have spent on producing the parts individually”.

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