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When a design engineer from a robotics company specializing in custom engine mounts approached us at 3DP MFG, they needed a partner who could bring their ideas to life — fast. In the fast-paced world of product development, speed isn’t a luxury; it’s a necessity. They were under pressure to test fitment for 12 unique components with one clear goal: make rapid design iterations to keep the project moving.They needed parts by the next day, and we knew that our FDM print farm could deliver. From the very start, we became their rapid prototyping ally, allowing them to push forward without the wait times that traditional manufacturing would require. We collaborated closely, working around the clock to produce each component accurately and quickly. And because they needed to make design modifications on the fly, our ability to immediately print their updated models meant they weren’t stalled by any production lags.In just five days, they finished the first phase of prototyping. Twelve complex parts went from concept to reality and were refined through each iteration. With that phase completed, they’re now moving forward confidently into the next development stages — and we’re ready for the next call.This story shows the power of having a reliable prototyping partner in those critical early stages. At 3DP MFG, we’re here to make sure our clients’ ideas can become tangible products, one quick iteration at a time.

Accelerating Robotics Innovation

3D printing with PLA filament on an FDM (Fused Deposition Modeling) printer can be a rewarding experience, but getting the temperature settings right is crucial for achieving high-quality prints. Whether you're a beginner or an experienced maker, understanding the signs of incorrect temperature settings can help you troubleshoot and fine-tune your printing process. In this blog post, we'll explore common signs that your PLA filament is printing at temperatures that are too hot or too cold, and what to look for on a smooth PEI print sheet specifically.Signs Your PLA Filament is Printing Too HotWhen your PLA filament is printing at too high a temperature, you might encounter several issues that can affect the quality of your prints:⚫️ Stringing or Oozing: If you notice thin, wispy strings of filament between parts of your print, your nozzle temperature might be too high. This occurs because the filament becomes too fluid and continues to ooze out of the nozzle even when it shouldn’t.⚫️ Blobs and Zits: Small blobs or zits on the surface of your print are another sign of excessive nozzle temperature. These imperfections are caused by the filament oozing out too quickly and accumulating in unwanted areas.⚫️ Burn Marks: Dark or burnt spots on your print indicate that the filament is overheating. This can be particularly noticeable on lighter-colored filaments where the discoloration is more apparent.⚫️ Warping or Curling: Overheating can cause the edges of your print to warp or curl, especially on overhangs. This is due to the excessive heat causing uneven cooling and contraction of the material.⚫️ Loss of Detail: High temperatures can cause fine details to blur or become less sharp, as the filament is too fluid to hold the intricate shapes.⚫️ Over-extrusion: You might see excessive filament being extruded, leading to overly thick layers or blobs of material. This can cause dimensional inaccuracies and a rough surface finish.⚫️ Weak Layers: Layers might not bond properly, leading to a weaker print structure that is prone to breaking or delaminating.Signs Your PLA Filament is Printing Too ColdPrinting PLA at too low a temperature also brings its own set of problems, which can compromise the strength and appearance of your prints:⚫️ Under-extrusion: Thin or incomplete layers are a common sign of under-extrusion, where not enough filament is being extruded due to insufficient melting.⚫️ Layer Delamination: Poor bonding between layers can result in layers separating or peeling off, making the print structurally weak.⚫️ Brittle Prints: A lower nozzle temperature can cause the printed object to be more brittle and prone to breaking, as the layers do not fuse together properly.⚫️ Nozzle Clogs: If the filament does not melt properly, it can clog the nozzle, interrupting the printing process and requiring maintenance to clear the blockage.⚫️ Inconsistent Extrusion: Uneven extrusion can lead to gaps or an inconsistent surface texture, making the print look rough and unrefined.⚫️ Surface Roughness: The surface of the print might be grainy or rough instead of smooth, as the filament does not flow evenly.⚫️ Stringing: While typically a sign of high temperature, stringing can also occur if the filament isn’t melting smoothly, causing thin strands to form.Signs of Printing Too Hot on the Print SheetWhen printing on a smooth PEI (Polyetherimide) print sheet, specific signs can indicate that your PLA is printing at too high a temperature:⚫️ Burn Marks: Look for dark or scorched areas on the print sheet where the nozzle has come into contact while too hot. These marks indicate excessive heat transfer and potential damage to the sheet.⚫️ Residue: Excess filament residue or deposits left on the print sheet can be a sign of too high a temperature. These residues can be sticky and hard to remove, indicating that the filament is not cooling and solidifying as it should.⚫️ Deformation or Warping: If the print sheet shows signs of deformation or warping where the filament has been excessively hot, it’s a clear indicator that the temperature needs to be adjusted.⚫️ Excessive Adhesion: The print may stick too strongly to the PEI sheet, making it difficult to remove and potentially causing damage to the sheet. This can be due to the filament being overly fluid and bonding too well with the surface.⚫️ Texture Changes: Changes in the texture of the print sheet surface where the filament has been in contact, such as smoother or glossy patches, can indicate that the sheet has been affected by the heat.ConclusionGetting the temperature settings right for your PLA filament is crucial for achieving high-quality prints with your FDM 3D printer. By understanding the signs of printing too hot or too cold, and knowing what to look for on your smooth PEI print sheet, you can troubleshoot and adjust your settings for optimal results. Happy printing!

Troubleshooting Temperature Issues in PLA 3D Printing on FDM Printers

Custom made orthoses designed digitally and created with a 3D printer

Rapid prototyping is a cutting-edge approach to creating 3D parts or assemblies for research, development, and product testing. Using 3D computer-aided design (CAD) and modern manufacturing techniques, it allows designers to quickly develop prototypes without the time and cost constraints of traditional methods.Understanding Fidelity in PrototypingPrototypes can vary in fidelity, representing how closely they resemble the final product. Lower fidelity prototypes loosely match the final product and are quicker to produce. Higher fidelity prototypes closely mirror the final product in terms of geometry, tolerance, and material properties, but take more time and cost more.Choosing the right fidelity depends on project goals, design maturity, and the designer's focus. Considering factors like geometry, material properties, fit-up, and finish at different fidelity levels helps optimize the overall design process. Types of Rapid Prototyping Technologies•Vat Photopolymerization: Creates parts layer by layer using light to convert photopolymer resin into a solid. Best for early design stages and proof of concept.&nbsp;•Selective Laser Sintering (SLS): Uses thermoplastic polymer materials suitable for part geometry and overall fit.&nbsp;•Selective Laser Melting (SLM) and Direct Metal Laser Sintering (DMLS): Ideal for metal materials and prioritizing material properties.&nbsp;•Multi-Jet Fusion (MJF): Similar to SLS but with faster cooling and post-processing times, suitable for detailed prototypes.•Fused Deposition Modeling (FDM): Versatile for thermoplastic materials but with lower dimensional accuracy. Best for early prototyping phases.•Material Jetting: Accurate but not suited for functional prototypes. Ideal for proof of concept or marketing prototypes.•Nanoparticle Jetting (NJP): Deposits metal nanoparticles for intricate structures.•Binder Jetting: Produces high-finish, brittle parts suitable for overall fit and geometry in prototypes. Advantages and Disadvantages of Rapid PrototypingAdvantages:•Early visualization and testing •More design iterations at lower cost •Cost-effective for product design and research Disadvantages:•Overuse may not save costs or time •Not suitable for all prototyping stages Commercial Applications of Rapid PrototypingRapid prototyping finds applications in various stages of design and manufacturing:•Proof of Concept: Quickly produces 3D prototypes for evaluating product viability, facilitating discussions, generating interest, and comparing designs.•Design Optimization: Accelerates optimization by evaluating product functionality or specific attributes early in the design process.•High-Fidelity Prototypes: Enables the creation of prototypes closely resembling the final product for demonstrating functionality and reliability testing. In conclusion, rapid prototyping revolutionizes the design process, offering benefits in cost, time, and flexibility. However, careful consideration of fidelity, technology selection, and application stages is crucial for successful implementation.

Exploring Rapid Prototyping: A Guide for Beginners

A Simplified Guide to Different FDM Infill Patterns for Beginners

Introduction:In the realm of 3D printing, Fused Deposition Modeling (FDM) stands out as one of the most popular and accessible technologies. FDM 3D printing is celebrated for its versatility and ability to bring digital designs into tangible reality. However, one critical aspect that can significantly impact the success of a 3D print is dimensional accuracy. In this blog post, we will explore what dimensional accuracy is in FDM 3D printing and why it matters.What is Dimensional Accuracy?Dimensional accuracy refers to the degree to which a 3D-printed object matches the intended dimensions specified in the digital design. In simpler terms, it is a measure of how closely the physical object replicates the computer-generated model. Achieving high dimensional accuracy is crucial, especially in applications where precise sizing and alignment are essential.Factors Influencing Dimensional Accuracy in FDM 3D Printing:<ol><li>Material Properties:
The choice of filament material plays a pivotal role in determining dimensional accuracy. Different materials have varying thermal expansion coefficients, which can cause parts to shrink or expand during the printing process. Understanding these material properties is key to mitigating potential issues.</li><li>Print Temperature:
FDM 3D printers extrude molten plastic layers to build up the final object. The temperature at which the filament melts and solidifies can impact dimensional accuracy. Setting the appropriate print temperature according to the material used is critical in minimizing warping and ensuring accurate layer deposition.</li><li>Bed Adhesion and Warping:
Proper bed adhesion is essential to prevent warping—the undesired deformation or curling of printed layers. Warping can lead to dimensional inaccuracies, especially in larger prints. Techniques such as using a heated bed, applying adhesion aids, and choosing the right build surface can help mitigate warping issues.</li><li>Print Speed and Layer Height:
The speed at which layers are deposited and the layer height selected can affect dimensional accuracy. Faster print speeds may compromise accuracy, while finer layer heights generally result in more precise prints. Striking the right balance between speed and layer height is crucial for achieving optimal dimensional accuracy.</li><li>Cooling Settings:
Cooling plays a vital role in FDM 3D printing, especially when working with materials prone to overheating. Properly cooling each layer as it is deposited helps prevent distortion and promotes accurate layer bonding. Controlling fan speeds and positioning can significantly impact the final print's dimensional stability.</li></ol>Why Dimensional Accuracy Matters:<ol><li>Functional Prototypes:
In fields like product design and engineering, accurate prototypes are essential for testing and validating concepts. Dimensional accuracy ensures that functional prototypes closely resemble the final product, providing more reliable testing results.</li><li>Parts Interchangeability:
In industries such as manufacturing, where components need to fit together seamlessly, dimensional accuracy is critical. Consistency in size and shape ensures that 3D-printed parts are interchangeable and can be integrated into larger assemblies without issues.</li><li>Quality of End-Use Parts:
For applications where 3D-printed parts are used as end-use products, achieving dimensional accuracy is paramount. Whether in healthcare, aerospace, or consumer goods, accurate prints enhance the overall quality and performance of the final product.</li></ol>Conclusion:Dimensional accuracy is a fundamental aspect of FDM 3D printing that directly impacts the utility and reliability of printed objects. By understanding the factors influencing accuracy and implementing best practices in material selection, printing parameters, and cooling strategies, enthusiasts and professionals alike can ensure that their 3D prints align precisely with their digital designs. As the world of 3D printing continues to evolve, the pursuit of dimensional accuracy remains a constant and essential endeavor.

Understanding Dimensional Accuracy in FDM 3D Printing

Introduction:
3D printing has revolutionized the way we bring our ideas to life, enabling us to create intricate and complex objects layer by layer. One critical aspect of Fused Deposition Modeling (FDM) 3D printing that often requires attention is bridging – the technique of creating horizontal spans between two supports without the need for additional support structures. In this blog post, we'll delve into the fascinating world of bridging in FDM 3D printing, exploring its challenges, techniques, and how it contributes to the overall quality of your printed objects.Understanding Bridging:
Bridging is the process of printing filament across a gap or void between two points without the support of underlying structures. Achieving successful bridges is crucial for creating functional and aesthetically pleasing prints, especially in designs where overhangs and unsupported spans are inevitable.Challenges of Bridging:
Several factors contribute to the challenges associated with bridging in FDM 3D printing:<ol><li>Gravity and Sagging: The force of gravity can cause the filament to sag or droop as it spans the gap, leading to an uneven and unsightly finish.</li><li>Print Speed and Temperature: Adjusting the print speed and temperature is crucial for maintaining the right consistency of the filament. Too high a temperature can result in excessive sagging, while too low a temperature can cause poor layer adhesion.</li><li>Layer Adhesion: Proper layer adhesion is essential for a strong bridge. Inconsistent extrusion or poor bonding between layers can compromise the structural integrity of the bridge.</li></ol>Techniques for Successful Bridging:<ol><li>Optimize Print Settings:<ul><li>Adjust print speed: Slower speeds during bridging can help minimize sagging and improve the overall quality.</li><li>Fine-tune temperature settings: Experiment with temperature settings to find the optimal balance between layer adhesion and reduced sagging.</li></ul></li><li>Support Structures:<ul><li>Consider using support structures for critical bridging areas. These temporary structures can provide additional stability during the printing process.</li></ul></li><li>Cooling Strategies:<ul><li>Use a cooling fan: Proper cooling can help solidify the filament quickly, reducing the likelihood of sagging. However, excessive cooling may lead to warping, so finding the right balance is essential.</li></ul></li><li>Design Considerations:<ul><li>Modify your design: Adjusting the angle of overhangs and incorporating chamfers or fillets can make bridging more manageable.</li></ul></li></ol>Conclusion:
Bridging in FDM 3D printing is a skill that requires a combination of thoughtful design, optimal print settings, and a bit of experimentation. As you master the art of bridging, you'll open up new possibilities for creating more complex and sophisticated 3D prints. So, the next time you embark on a 3D printing project, embrace the challenge of bridging and elevate your prints to new heights!

3DP MFG

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Accelerating Robotics Innovation

Troubleshooting Temperature Issues in PLA 3D Printing on ...

Exploring Rapid Prototyping: A Guide for Beginners

A Simplified Guide to Different FDM Infill Patterns for B...

Understanding Dimensional Accuracy in FDM 3D Printing

Bridging the Gap: Exploring the Art of Bridging in FDM 3D...