India: Improving FDM 3D Printing Through Process Parameter Optimization

Share this Article

In ‘Process Parameter Optimization for FDM 3D Printer,’ researchers from India discuss varying ways to improve popular fabrication processes, exploring basic parameter settings like density, layer height, and shell thickness—and how they affect mechanical properties like surface roughness, hardness, and tensile strength of 3D printed parts.

Specimen printing parameter variations

Using 1.75mm PLA as their material of choice, the scientists used an I3D Minds 3D printer for testing, SOLIDWORKS for design, and CURA for slicing. The I3D Minds offers a build volume of 190x190x180 mm and nozzle diameter of 0.4 mm, and automated setup and manufacturing.

Design samples were opened in CURA, and varying parameters were set:

  • Different layer heights – 0.1mm, 02mm, and 0.3mm
  • Fill densities – 50%, 75%, 100%
  • Shell thickness – 0.6mm, 0.8mm, 1.0mm

Sample files were converted into G-Code, and then sent to the 3D printer:

“The nozzle was maintained a temperature of 215 ºC for the extrusion of the PLA material and the build plate was maintained at 60 ºC,” stated the authors. “The printer prints the layer through the nozzle print head onto bed, one layer by layer, from bottom to top, and the same test setup was used for all specimens. The post hardening was observed to investigate the unconditional effect of printing parameters on physical and mechanical properties of the printed specimens.”

CAD modeling

The researchers also touched on common issues such as how to prevent issues due to common errors that may occur at the .stl file stage, often easily averted with ‘repair’ fixes in the original model.

“Generally, STLs that have been produced from a model obtained through 3D scanning often have more of these errors,” said the authors. “This is due to how 3D scanning works—as it is often by point to point acquisition, reconstruction will include errors in most cases.”

Printing a ‘slightly oversized version’ of the object is also suggested for greater precision in parts.

In discussing the Taguchi method, created by Dr. Genichi Taguchi, one of the leaders in parameter design, the researchers suggest using an orthogonal array for balanced results. This balance also means that each part can be evaluated on its own because each one is equal.

“On the basis of varying different parameters in different levels a Design of Experiments was carried out which can be used for preparation of specimens for optimization of 3D printed products for different parameters of 3D printing,” concluded the researchers. “Testing machines are selected for testing mechanical properties such as tensile strength, hardness and surface roughness of 3D printed specimens.”

While many may refer to 3D printing as magical, plenty of brainpower—in labs around the world—still goes into thinking of ways to refine nearly all methods. In FDM printing, researchers explore ways to improve layer adhesion, review how products like sensors are created, and discuss popular types of composites. Find out more about how scientists are improving parameter optimization here. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com.

Surface roughness test

[Source / Images: Process Parameter Optimization for FDM 3D Printer]

Share this Article


Recent News

Dimension Inx Raises a $3.2M to Develop FDA-approved 3D Printed Tissue Implants

Fiat and Fraunhofer 3D Print First-of-its-Kind Car Suspension System



Categories

3D Design

3D Printed Art

3D Printed Food

3D Printed Guns


You May Also Like

3D Printing Design for Automotive to Be Supported by Lehvoss & FENA

3D printing materials provider Lehvoss North America, part of the LEHVOSS Group of chemical companies operating under parent company Lehmann&Voss&Co., announced that it is partnering up with Forward Engineering North...

3D Printing News Briefs, June 10, 2020: 3D Systems, nTopology, Jellypipe

We’re discussing an upcoming event and some business news in today’s 3D Printing News Briefs. 3D Systems is holding a virtual trade show next month. nTopology and Yamaichi have signed...

Playing a Big Part: Cummins Impacts Auto Parts Manufacturing With 3D Printing

What if you never had to hear, “They don’t make that part anymore” from your local mechanic? That fantasy may soon be a reality for car owners thanks to the...

3D Printing News Briefs: December 22, 2018

Starting with fashion news, moving to automotive, and finally on to business, we’ve got a short but interesting 3D Printing News Briefs for you today. An Israeli fashion and shoe...


Shop

View our broad assortment of in house and third party products.