Short answer

Consider incorporating internal void structures into your 3D printed designs, with the intention of filling these voids with a higher-performance material to improve mechanical properties.

Field: Final Production
Source: PLoS ONE (2015)
Method: Experimental testing and comparative analysis
Evidence: Strong effect

Strategically embedding voids within 3D printed parts and filling them with high-strength resins can significantly enhance material stiffness and tensile strength. This final production research insight is drawn from a 2015 study published in PLoS ONE. Using Experimental testing and comparative analysis, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Consider incorporating internal void structures into your 3D printed designs, with the intention of filling these voids with a higher-performance material to improve mechanical properties.

Study

Final ProductionHigh ImpactStrong effect

Fill Compositing Boosts 3D Printed Part Strength by 45%

Strategically embedding voids within 3D printed parts and filling them with high-strength resins can significantly enhance material stiffness and tensile strength.

PLoS ONE · 2015

Key Findings

01Fill compositing increased part strength by up to 45%.
02Fill compositing increased part stiffness by up to 25%.
03The technique retains the benefits of FDM, including speed and complex geometry capabilities.

Application

Design takeaway

Consider incorporating internal void structures into your 3D printed designs, with the intention of filling these voids with a higher-performance material to improve mechanical properties.

How to apply

When designing functional prototypes or end-use parts that require enhanced load-bearing capabilities, explore the possibility of designing internal lattice structures or cavities that can be subsequently infiltrated with a stronger epoxy or resin.

Project actions

01When designing your 3D model, plan where to put the hollow sections to best reinforce the weak points.
02Experiment with different types of resins to see which ones bond best and provide the most strength.

Method & Evidence

AimCan the fill compositing technique effectively increase the strength and stiffness of FDM-printed parts?

MethodExperimental testing and comparative analysis

ProcedureThe researchers developed a 'fill compositing' technique where internal voids were strategically placed within 3D printed ABS parts. These voids were subsequently filled with high-strength resins. The mechanical properties (strength and stiffness) of these modified parts were then compared to solid, conventionally printed ABS parts using three-point bend testing.

ContextAdditive Manufacturing (3D Printing)

Variables

IV["Use of fill compositing technique (presence/absence of voids and resin infill)"]

DV["Part strength","Part stiffness"]

CV["3D printing material (ABS)","3D printing process parameters (layer height, infill density of the printed part itself)","Geometry of the tested part (e.g., bending beam dimensions)","Type of resin used for infill"]

Strengths & Limitations

Strengths

+Directly addresses a key limitation of FDM printing: material strength.
+Provides quantitative data on performance improvement.

Limitations

The process adds extra steps and time after printing. The choice of resin and the quality of the bond between the resin and the printed plastic are crucial and can be difficult to control perfectly.

Reliability & validity

The study's validity is supported by experimental testing (three-point bend tests) and comparison against a control group (solid parts). Reliability would depend on the consistency of the printing process and the resin infill procedure across multiple samples.

Think critically

How might the added weight from the resin affect the overall performance benefits of the strengthened part, especially in applications where weight is a critical factor?

Design Principles

"Hybrid material integration for enhanced structural performance in additive manufacturing."

This technique offers a practical method for designers and engineers to improve the performance of 3D printed components without sacrificing the advantages of additive manufacturing, such as design freedom and rapid prototyping. It opens avenues for creating stronger, more durable parts for demanding applications.

What This Means for Your Design

You can make 3D printed plastic parts much stronger by designing hollow spaces inside them and then filling those spaces with a strong liquid glue (resin).

How to use in your project

1.Reference this study when discussing methods to improve the material properties of your 3D printed prototypes, especially if strength is a key performance indicator.

Add to My Project

Quick Cite

Paragraph starter

The fill compositing technique, as demonstrated by Belter and Dollar (2015), offers a viable strategy for enhancing the mechanical performance of FDM-printed components. By strategically designing internal voids and infilling them with high-strength resins, significant improvements in part strength (up to 45%) and stiffness (up to 25%) can be achieved, expanding the functional application range of additive manufacturing.

Source

PLoS ONE

Strengthening of 3D Printed Fused Deposition Manufactured Parts Using the Fill Compositing Technique

journal · 2015

View source

Questions About This Research

What does the research say about fill compositing boosts 3d printed part strength by 45%?: Consider incorporating internal void structures into your 3D printed designs, with the intention of filling these voids with a higher-performance material to improve mechanical properties. Evidence: PLoS ONE (2015).
Why does "Fill Compositing Boosts 3D Printed Part Strength by 45%" matter for design?: This technique offers a practical method for designers and engineers to improve the performance of 3D printed components without sacrificing the advantages of additive manufacturing, such as design freedom and rapid prototyping. It opens avenues for creating stronger, more durable parts for demanding applications.
How can designers apply this research?: Consider incorporating internal void structures into your 3D printed designs, with the intention of filling these voids with a higher-performance material to improve mechanical properties.
What were the main findings?: Fill compositing increased part strength by up to 45%.. Fill compositing increased part stiffness by up to 25%.. The technique retains the benefits of FDM, including speed and complex geometry capabilities.
What research method was used?: Experimental testing and comparative analysis.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2015 journal from PLoS ONE.
What should I do differently in my next project?: When designing functional prototypes or end-use parts that require enhanced load-bearing capabilities, explore the possibility of designing internal lattice structures or cavities that can be subsequently infiltrated with a stronger epoxy or resin.
What are the limitations?: The effectiveness may vary depending on the resin used, the geometry of the voids, and the specific thermoplastic material being printed. Adhesion between the printed part and the resin is critical.