I never thought I’d be using a nursery rhyme to illustrate the selection of a 3D printer. But here we are…

Selecting the right 3D printer for your specific needs is a daunting task. Imagine if Goldilocks had to choose a 3D printer—too hot, too cold, just right? Okay, so maybe it’s a bit more complex than that. The reality is more like this: Is the material chemically resistant? Heat resistant? Water-resistant? Is it strong enough, flexible enough, or lighter than the material you usually use? And how will it interact with the environment?

Whether you’re building a prototype, creating a custom tool, or producing end-use parts, this guide will help you find the 3D printer and material that’s just right for your product’s success. Let’s dive into the plethora of possibilities and find that perfect bowl of porridge … I mean, material and printer combination!

Understand Your Product Requirements
The first step in choosing the right 3D printer is understanding your product’s requirements. Consider the following aspects:

1. Material Needed: This is a great starting point. Identify the desired material characteristics then look for a 3D printer that can use the material you require, Different 3D printers support different materials in broad terms the materials fall into several raw forms. Some are delivered on a spool or come in coil-fed canisters. Others are liquid resins. Yet others are delivered in powder form. One of our experts can help ensure the printer you choose is compatible with the material best suited for your product.

2. Print Volume: The size of your product and the quantity you need to be printed determines the size of the print chamber you need. The price of the material and whether or not you can print two or three pieces and bind them together is also a consideration. It could be a simple as, if you’re printing large objects, you’ll need a printer with a larger build area.

3. Detail and Precision: The level of detail and precision required for your product is crucial. High-resolution printers can produce finer details. Consider the layer resolution and precision specifications of the printer.

4. Durability and Strength: Depending on the product’s intended use, you might need a printer that can produce parts with high durability and strength. This is particularly important for tooling, functional parts and prototypes.

Types of 3D Printers
There are several types of 3D printers available, each with its strengths and weaknesses. Usually, our customers call one of our experts and discuss the desired application. Here are the most common types:

1. FDM (Fused Deposition Modeling)
FDM, or Fused Deposition Modeling, is one of the most popular and accessible 3D printing technologies. It works by extruding a thermoplastic filament through a heated nozzle, layer by layer, to create a solid object. FDM printers are widely used for creating prototypes, functional parts, and low-volume production items. They are favored for their affordability, ease of use, and the ability to use a variety of materials, including ABS, ASA, Nylon, ULTEM, and many others

2. PolyJet
PolyJet technology uses a liquid photopolymer that is jetted onto a build platform in ultra-thin layers and cured with UV light. This process allows for digitally mixed, high-resolution prints with smooth surfaces and fine details. PolyJet printers are often used for creating realistic prototypes, medical models, and high-definition presentation models. They can print in multiple materials, customized shore values(Hard or Soft), and colors simultaneously. Making them ideal for the times when you need to see the final product before you have a final product.

3. Stereolithography (SL)
Stereolithography (SL) employs a UV laser to cure liquid resin into hardened plastic in a layer-by-layer fashion. Known for its high precision and smooth surface finish, SL is perfect for detailed prototypes, casting patterns, and end-use parts. The technology is appreciated for its ability to produce large parts with intricate geometries and fine details, making it suitable for industries requiring large and or high-accuracy parts.

4. SAF (Powder Bed Fusion)
Selective Absorption Fusion (SAF) is a type of powder bed fusion technology that uses a heat-absorbing liquid applied to specific areas of a powder bed, which is then fused with infrared light. The SAF base material includes PA10 and PA-11 soon Stratasys will be adding polypropylene. SAF is used primarily for high-volume production of functional parts with good mechanical properties. It is ideal for industries such as automotive, manufacturing, and aerospace, where producing durable, high-quality components at scale is crucial.

5. DLP (Digital Light Processing)
DLP, or Digital Light Processing, uses various resins and a digital light projector screen to flash an image of a layer across the build chamber. DLP is known for its speed and ability to produce high-resolution, smooth surface finishes quickly. It’s commonly used for detailed prototypes, then used to produce multiple parts for low-volume production.

6. MoldJet
MoldJet technology combines aspects of 3D printing and injection molding to produce metal parts. It involves creating a mold using a 3D printer, into which material is then injected to form the final part. MoldJet is useful for producing parts with complex geometries and high precision in small to medium volumes. It is especially beneficial for creating detailed prototypes, functional parts, and low-volume production runs where traditional molding methods would be too costly or time-consuming.

7. SLS (Selective Laser Sintering) Metal Powder
Selective Laser Sintering (SLS) for metal powders involves using a high-powered laser to fuse metal powder particles layer by layer to form a solid part. SLS metal printing is used extensively in aerospace, automotive, and medical industries for creating strong, durable metal parts with complex geometries that would be difficult or impossible to achieve with traditional manufacturing methods.

8. Blue Laser Metal Wire-Fed 3D Printer
Blue Laser Metal Wire-Fed 3D printing employs a blue laser to melt metal wire, which is then deposited layer by layer to build up the part. This method is noted for its efficiency and the quality of the metal parts it produces. It is particularly useful in industries like aerospace, automotive, and maritime, where high-strength metal components are essential. The blue laser’s precision allows for the creation of strong, durable parts suitable for demanding applications. This process creates a near-net-shaped metal part that needs a secondary machine process to create a smooth finish.

Budget Considerations
Your budget plays a significant role in determining the right 3D printer. If you feel you are not given the required budget for an industrial 3D printer you might want to read one of these helpful blogs..

• “Did You Receive Get Out of My Hair Money?”
• “Justifying the Move to Industrial 3D Printing”
• “How to Recognize an Industrial FDM 3D Printer”

Prices can range from a 25K for entry-level Industrial FDM printer to tens of thousands for industrial-grade SLS or SLA printers. Consider not only the initial cost but also the ongoing expenses for materials, maintenance, labor, and potential upgrades.

Ease of Use and Support
If you’re new to 3D printing, the ease of use and availability of support can be crucial. Look for printers with user-friendly interfaces, comprehensive manuals, and active user communities. Additionally, know that a truly industrial printer has on-site support in times of trouble. Make sure to consider the availability of customer support and warranty.

Software Compatibility
The software you use to design your products needs to be modeling or 3D design software. Most of the time the software to calculate the tool path of the print system (called a slicer) comes with the machine. Sometimes the slicer program is separate. Make sure to research this point. We can help you figure this out.

Future-Proofing Your Investment
As technology advances, new features, new materials, and capabilities become available. Consider a company that has been around a while and is known for supporting its equipment. Make sure to ask how long they will support the printer and how long once the printer is discontinued will the support still be available. For example, Stratasys supports their equipment that has been discontinued for seven more years. They will also, offer substantial trade-in discounts to upgrade to the next-generation 3D printer.

Conclusion
Selecting the right 3D printer can feel like navigating a fairy tale, but with the right guidance, it’s achievable. By thoroughly understanding your product requirements, such as material compatibility, print volume, and precision needs, you can narrow down the choices. Evaluating the various types of 3D printers— FDM, PolyJet, SLA, SAF, DLP, MoldJet, SLS, and Blue Laser Metal Wire-Fed—based on their specific strengths and applications, further aids in making an informed decision. Considering factors like budget, ease of use, support, software compatibility, and future-proofing ensures a long-term, effective investment. With these considerations, you’ll find a 3D printer that’s “just right,” setting you on the path to success in your manufacturing endeavors.

We hope you enjoyed this light-hearted way of introducing you to the different 3D printing options that we offer. If there is a technology that you’d like to learn more about, please contact us at Prototyping Solutions. We are committed to helping you find the right solution and materials for your needs