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Introduction to Fused Filament Fabrication (FFF) 3D printing technology

3D Printing Technology, technically known as Additive Manufacturing (AM) or Rapid Prototyping, is a manufacturing process in which layers of material are built up to create a solid object. There are countless 3D printing technologies, each with its own benefits depending on the application, but this White Paper will focus on Fused Filament Fabrication (FFF) for plastics. 


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BCN3D Technologies_Introduction to FFF_Additive manufacturing technologies

Introduction to FFF: Fused Filament Fabrication

FFF is an extrusion process where the object is built by depositing melted material layer-by-layer. The plastics used correspond to the same thermoplastics that can be found in conventional manufacturing processes, such as ABS or Nylon.BCN3D Technologies_Introduction to FFF_Work

FFF led the expansion of desktop 3D printers and nowadays is the most widespread 3D Printing Technology in the market. This was essentially due to the low initial investment needed, the immense variety of applications offered and the little specific knowledge required to access and use this technology professionally.

How does FFF work?

As previously mentioned, FFF consists of an extrusion process of melted plastic. In order to generate the part, a print head travels around the printing surface depositing the material. Here is the FFF fabrication workflow:

BCN3D Technologies_Introduction to FFF_Fabrication_workflow

• The first stage consists of generating the 3D model with any design software, such as Solidworks, Catia, Rhino or Inventor. The 3D model needs to be exported in STL format.
• File preparation: To configure the model to be printed, it is necessary to use a slicing software where all the printing requirements will be included. This configuration will contain the material selection and the nozzle size of the printer. The software also separates the model into layers, and the printing quality, and movement commands can be configured.
• The printing phase is the deposition of the melted plastic.

In-house desktop 3D printers: FFF vs SLA

The most popular 3D printing technologies are FFF and SLA. SLA consists of a liquid photopolymer selectively cured by UV light.

Both technologies have their own benefits and disadvantages, and the choice between them will depend on business needs such as material type, budget available and planned end-use:

BCN3D Technologies_Introduction to FFF_Desktop 3D printers comparison

Professional desktop 3D printers compared to industrial printers and outsourcing

Within the FFF technology market, there are different printer categories based on the relation between price and printing quality.

Should the number of parts to produce be low and the usage planned to be sporadic, there is the option to outsource the 3D printing service through a 3D printing service bureau. If the plan is to work in a medium-long term project, the acquisition of 3D printers can reduce costs significantly. This acquisition implies an initial investment, but then the price per part becomes approximately 30 times cheaper.

BCN3D Technologies_Introduction to FFF_Professional Desktop Printers vs Industrial FFF Printers vs Outsourcing 3D Printing production

Which solution better fits your needs

As explained before, there are many options when choosing how to print the 3D models. It is important to define all the requirements and select which the best option might be depending on your business’ specific needs, and taking into consideration parameters such as cost and lead time:

BCN3D Technologies_Introduction to FFF_The Right Solution For Yours Needs_

In-house FFF printers offer the best combination of costs and lead times. However, investing in both FFF and SLA printing technologies will give your company full versatility when producing parts. Each technology has its own benefits and applications, so the answer to the following questions about your 3D printing needs will be crucial when choosing the best solution for your company.

• What is my budget?
• Does my company have specialized equipment to support the 3D Printer?
• Do I have a need to print out mechanically demanding parts?
• Will there be designing and application versatility?
• How many printed parts does my company required?
• What is the lead time my company requires?

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Would you like to know more about 3D printing? Check out the following white papers:

Introduction to FFF technology and its most important parameters
• Anatomy of Sigma & Sigmax R19 extrusion system

Ready to save time and cut costs with a BCN3D printer? Request a customized quotation for a BCN3D Printer.