3D BUILD: Italian company WEERG explains the advantages of nesting in 3D printing

Italy-based Weerg is hosting the largest installation of HP Multi Jet Fusion Model 5210 3D printers at its Venice facility. The company, which offers online 3D printing and CNC machining via the weerg.com platform, has developed a new product aimed at high volume customers such as professional, service and industrial customers who are now purchasing a 3D build unit can.

HP Multi Jet Fusion Industrial Printing Systems print construction structures that can be filled with hundreds of 3D objects of the same quantity, size, shape, or properties. The manufacturing costs of a build structure are fixed regardless of the number of parts it contains. Therefore, by optimizing the parts that make up the structure, it is possible to reduce the unit production cost.

Above: The 2 new HP 5210 Multi Jet Fusion 3D printers [white] Image source: HP Inc.

The economic advantages of this system lie in the nesting, which allows multiple parts to be assembled by optimizing the content of the structure. “In order to guarantee optimal nesting, which theoretically could also be done manually with a considerable investment of resources, we recommend the use of specialized software, which is widely available on the market,” explains Matteo Rigamonti, founder of Weerg. This type of software automatically translates and rotates a set of 3D parts within the structure to minimize voids and optimize the quality and quantity of the parts printed. In addition, the user can define the number of parts and the minimum distance between the individual parts via the software.

Image source: Weerg

“The greatest benefits are achieved when nesting is used to fill the full capacity of Build 3D,” continues Rigamonti. The 3D build technique proposed by Weerg enables 3D printing with HP MJF technology in three different materials: nylon PA11, nylon PA12 and polypropylene. “Since its introduction, this new service has attracted particular interest from companies that have to outsource excess quantities to produce that exceed their production capacity, or that are struggling with temporary overload or machine downtime,” says Rigamonti. “The success of this formula is also due to the extreme ease with which customers can perform the nesting by sending us the 3D file of the structure with the guarantee that it will be delivered within 3 working days.”

For those who may not know, the term “nesting” comes from the English “to nest”, which means interlocking and denotes an organizational technique that aims to make production more efficient by virtually pre-positioning elements that interlock with each other make others like in nests. Weergs to this day 3D build service uses HP MJF technology, which guarantees industrial performance in terms of quality, productivity and delivery times.

“Our R&D department carried out a lot of simulations to develop this service,” explains Rigamonti. “If users who buy the structure utilize their full capacity through optimal nesting, they can benefit from savings of up to 60% compared to individual production of the parts.”

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