Subscribe to our free daily newsletters
. 24/7 Space News .




Subscribe to our free daily newsletters



TECH SPACE
Dramatic improvement in surface finishing of 3-D printing
by Staff Writers
Tokyo, Japan (SPX) Mar 15, 2017


Visual comparison of printed surface before smoothing (1), with smoothing by conventional methods (2) and by 3D-CMF (3). CMF result (a-3) is more uniform than polishing (a-2), and CMF (b-3) accurately preserves more desired surface detail than solvent vapor method (b-2). Image courtesy Waseda University.

Waseda University researchers have developed a process to dramatically improve the quality of 3D printed resin products. The process combines greatly improved surface texture and higher structural rigidity with lower cost, less complexity, safer use of solvent chemicals and elimination of troublesome waste dust.

Kensuke Takagishi and Professor Shinjiro Umezu, both of the Waseda University Faculty of Science and Engineering, Department of Modern Mechanical Engineering, chose the Fused Deposition Modeling (FDM) type 3D printer, whose relatively low cost makes it most suited for in-home use, and addressed the issue of surface "ribbing," rough appearance due to grooves between layers of applied resin material.

This research is published in Nature's Scientific Reports.

One existing method for surface smoothing is polishing, or grinding down the high places to reduce the appearance of "ribs". However, the polishing devices add complexity and cost to the machine, and capture and disposal of the generated dust adds further complexity, making the whole machine impractical for household use.

Another existing method for finishing uses vaporized solvents to melt and smooth the surface of the printed piece. This method has the advantage of capturing some of the dissolved material in the bottom of the grooves, improving smoothness and structural integrity with less wasted resin; however complexity of the machine, indiscriminate dissolution of the entire surface, and handling of large amounts of flammable solvents are major issues.

The Waseda researchers developed and tested a method called 3D Chemical Melting Finishing (3D-CMF), which uses a tool like a felt-tip pen to selectively apply solvent to certain parts of the printed piece which require smoothing.

The new 3D-CMF method has major advantages over previous methods, which promise to move 3D printing into a much more attractive commercial position. 3D-CMF removes less material, creating less waste and achieving more precise shaping, and uses less solvent for better safety and lower cost. In addition, pen tips can be changed to further increase surface shaping precision.

Figures 1 and 2 explain the process and compare results visually between vaporized solvent and the 3D-CMF methods. Figure 3 compares methods by 6 variables.

The original article also includes data results of performance testing and photos of the devices used.

Research paper: Development of the Improving Process for the 3D Printed Structure - Kensuke Takagishi and Shinjiro Umezu - Scientific Reports 7, Article number: 39852 (2017) doi:10.1038/srep39852

TECH SPACE
Scientists develop new surface finishing for 3D-printing
Washington (UPI) Mar 13, 2017
Researchers at Waseda University in Japan developed a process they say dramatically improves the quality of 3D-printed resin products. The new technique improves surface texture and increases structural rigidity through a process called 3D Chemical Melting Finishing, or 3D-CMF, which uses a tool similar to a felt-tip pen to apply solvent selectively to specific parts of the printed prod ... read more

Related Links
Waseda University
Space Technology News - Applications and Research


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment on this article using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

TECH SPACE
New Plant Habitat Will Increase Harvest on International Space Station

NASA Releases Free Software Catalog

India has capability to develop space station, says top official

Orion spacecraft achieves key safety milestone

TECH SPACE
Space squadron supports record-breaking satellites launch

Europe launches fourth Earth monitoring satellite

Elon Musk: tech dreamer reaching for sun, moon and stars

Blue Origin shares video of New Glenn rocket

TECH SPACE
New evidence for a water-rich history on Mars

Humans May Quickly Evolve on Mars, Biologist Claims

NASA Orbiter Steers Clear of Mars Moon Phobos

Remnants of a mega-flood on Mars

TECH SPACE
Riding an asteroid: China's next space goal

China launches experiment satellite "TK-1"

China Plans to Launch 1st Probe to Mars in Summer 2020

China to launch space station core module in 2018

TECH SPACE
How low can you go? New project to bring satellites nearer to Earth

Teal Group Pegs Value of Space Payloads Through 2036 at Over $250 Billion

Iridium Safety Voice Communications Installs Surge Past 500 Aircraft

Eutelsat Signs up for Blue Origin's New Glenn Launcher

TECH SPACE
MIPT physicists predict the existence of unusual optical composites

Sandia creates 3-D metasurfaces with optical possibilities

First exact model for diffusion in magnesium alloys

New application of the selective laser melting method

TECH SPACE
Kepler Provides Another Peek at Ultra-cool Neighbor

Hunting for giant planet analogs in our own backyard

Faraway Planet Systems Are Shaped Like the Solar System

Biochemical 'fossil' shows how life may have emerged without phosphate

TECH SPACE
Juno to remain in current orbit at Jupiter

Europa Flyby Mission Moves into Design Phase

NASA receives science report on Europa lander concept

New Horizons Refines Course for Next Flyby




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement