3D Printing issue help

[Sluis Van Shipyards]

I got some Elegoo PLA Silk silver and I've been trying to find the best setting to get it shinier. I printed out a little skull from a cartoony skeleton I had. The bone colored version used eSun PLA+ and it's completely smooth. The Elegoo silk has some artifact above the brow and on the right cheek (which you can't see). Both were printed at .1mm. Any idea what caused that artifact on the silver one? I'm new to 3D printing so no idea what caused this.

 

[Rahn420]

I'm no expert, but...

To my eye, as the layer paths get smaller, you're getting oozing that gets more prominent. I see some stringing, as well.

Maybe try reducing the flow or the temp. Doesn't look like you would need to change it much.

Also, some slicers have settings for such short path circuits.

The lighter one looks great.

Not all filament is created equal.

 

[Sluis Van Shipyards]

I'll check that out. I know they said the silk filaments can be finicky to get the smoothest (or shiny in this case), which is what I was testing. I just used the included Bambu PLA silk profile, which Reddit people suggested. My nephew said he thought the nozzle might have stuck to the brow, which is kind of what I was thinking at first, no idea though. So far that eSun PLA+ bone color is the smoothest I've seen yet. I'm printing a 20" tall Mythosaur skull (in four parts) with it right now.

 

[acesh007]

Youre other print is very smooth. I would try to bump up the temp up just a little to see if it helps, its just going to take a bunch of small adjustments to dial in the settings on the new filament.

 

[Sluis Van Shipyards]

I think the issue was the temp was too high. I was taking the spool off and noticed it said (Elegoo - 220 degrees). I printed out another one and it was shinier, but still had a little, though smaller blemish on the brow. I'm going to bump it down to 215, from what some people have said, and see if that does any better or worse. The Bambu Silk PLA profile I used previously is set to 230 degrees.

 

[JPH]

I got some Elegoo PLA Silk silver and I've been trying to find the best setting to get it shinier. I printed out a little skull from a cartoony skeleton I had. The bone colored version used eSun PLA+ and it's completely smooth. The Elegoo silk has some artifact above the brow and on the right cheek (which you can't see). Both were printed at .1mm. Any idea what caused that artifact on the silver one? I'm new to 3D printing so no idea what caused this.

View attachment 1880820

Turn heat up to 3- 5 degrees below MAX.

turn down print speed 10%

Play with retraction settings.

 

[Sluis Van Shipyards]

I've got the wall speeds turned down. I think from the last result I just need to fiddle to get it right.

 

[publiusr]

A new plastic has been developed for 3D printing

Team solves a nearly 200-year-old challenge in polymers to offer independent control of stiffness and stretchability

Researchers at the University of Virginia School of Engineering and Applied Science have developed a new polymer design that appears to rewrite the textbook on polymer engineering. No longer is it dogma that the stiffer a polymeric material is, the less stretchable it has to be.

phys.org

Odd

3D-printed particles propel themselves across the surface of a fluid

A small team of physicists at the University of Amsterdam has demonstrated the ability of 3D-printed particles to propel themselves across the surface of a fluid, given the right fuel. The group has posted a paper describing their particles on the arXiv preprint server.

phys.org

 

[publiusr]

More on the subject.

Simple fix can help generative AI create more realistic 3D shapes

Creating realistic 3D models for applications like virtual reality, filmmaking, and engineering design can be a cumbersome process requiring lots of manual trial and error.

techxplore.com

Fast-curing silicone ink opens new doors in 3D printing

Researchers at Lawrence Livermore National Laboratory (LLNL) have developed a new method to 3D print sturdy silicone structures that are bigger, taller, thinner and more porous than ever before.

phys.org

New Tullomer Filament Claims To Beat PEEK

Recently a company called Z-Polymers introduced its new Tullomer FDM filament that comes with a lofty bullet list of purported properties that should give materials like steel, aluminium, and vario…

hackaday.com

Stretchable, flexible, recyclable: 3D printing method creates fantastic plastic

Princeton engineers have developed an easily scalable 3D printing technique to manufacture soft plastics with programmed stretchiness and flexibility that are also recyclable and inexpensive—qualities not typically combined in commercially manufactured materials.

phys.org

Turning 3D printing's biggest flaw into its smartest feature

Civil and systems engineers at Johns Hopkins University have turned a longstanding problem with 3D printers into a multifunctional feature: The team developed a new printing technique that solves the fundamental weakness between the layers created during 3D printing. This work, which appears in...

techxplore.com

3D printing approach for shape-changing materials means better biomedical, energy, robotics devices

An Oregon State University researcher has helped create a new 3D printing approach for shape-changing materials that are likened to muscles, opening the door for improved applications in robotics as well as biomedical and energy devices.

techxplore.com

Bendable electronic parts can heat up by themselves to lower the manufacturing temperature barrier

A research team has developed a technology to manufacture high-performance liquid process-based electronic parts at lower temperatures than what was previously possible by harnessing the heat of combustion generated in materials.

techxplore.com

Bioprinting technique creates functional tissue 10x faster

Three-dimensional (3D) printing isn't just a way to produce material products quickly. It also offers researchers a way to develop replicas of human tissue that could be used to improve human health, such as building organs for transplantation, studying disease progression and screening new...

medicalxpress.com

New method discovered for controlling molecular patterns on liquid droplets

A team of researchers has uncovered a previously unknown phenomenon that could improve the way we design materials at the molecular level. By unlocking a transformation between two types of structural defects on the surface of liquid droplets, the research opens new possibilities for controlling...

phys.org

Medical device mimics tapeworm hooks for soft tissue anchoring

Inspired by the diverse attachment organs of parasites, researchers have designed a millimeter-scale mechanism for soft tissue anchoring.

medicalxpress.com

Researchers develop hyper-sampling imaging to deliver ultra-high-resolution images

A research team led by Prof. Zhang Ze from the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences has developed a hyper-sampling imaging (HSI) technology that enhances the image quality and resolution of digital imaging systems. The study was published in Laser &...

phys.org

To design better water filters, engineers look to manta rays

Filter feeders are everywhere in the animal world, from tiny crustaceans and certain types of coral and krill, to various mollusks, barnacles, and even massive basking sharks and baleen whales. Now, MIT engineers have found that one filter feeder has evolved to sift food in ways that could...

techxplore.com

Plastic and glass

New catalyst can convert methane into useful polymers

Although it is less abundant than carbon dioxide, methane gas contributes disproportionately to global warming because it traps more heat in the atmosphere than carbon dioxide, due to its molecular structure.

phys.org

Machine learning helps optimize polymer production

Polymers, such as plastics, are essential in many aspects of life and industry, from packaging and cars to medical devices and optic fibers. Their value comes from diverse properties that are largely determined by their monomers—the single chemical units—that make up a polymer. Unfortunately, it...

phys.org

Catalyst 'breathes' new life into acrylonitrile production

A team of engineers is reimagining one of the essential processes in modern manufacturing. Their goal? To transform how a chemical called acrylonitrile (ACN) is made—not by building world-scale manufacturing sites, but by using smaller-scale, modular reactors that can work if they let the...

phys.org

Nature inspires self-assembling helical polymer

Helical structures are ubiquitous across biology, from the double-stranded helix of DNA to how heart muscle cells spiral in a band. Inspired by this twisty ladder, researchers from Hiroshima University's Graduate School of Advanced Science and Engineering have developed an artificial polymer...

phys.org

New foam filter achieves high microplastic removal rates in initial testing

Wuhan University-led research is reporting the development of a revivable self-assembled supramolecular biomass fibrous framework (a novel foam filter) that efficiently removes microplastics from complex aquatic environments.

phys.org

Cooperative motion by atoms protects glass from fracturing

We've all experienced the moment of panic when a glass slips from our hands, shattering into pieces upon hitting the ground. What if this common mishap could become a thing of the past?

phys.org

Do 3D Printers Dream Of LEGO Sheep?

Imagine the power to clone your favorite LEGO piece—not just any piece, but let’s say, one that costs €50 second-hand. [Balazs] from RacingBrick posed this exact question: can a 3D scanner re…

hackaday.com

3D Printer Eliminates The Printer Bed

Anyone who has operated a 3D printer before, especially those new to using these specialized tools, has likely had problems with the print bed. The bed might not always be the correct temperature l…

hackaday.com

Origami-Inspired, Self-locking Structures With 3D Printing

Researchers recently shared details on creating foldable, self-locking structures by using multi-material 3D printing. These origami-inspired designs can transition between flat and three-dimension…

hackaday.com

Danger-Klipper Fork Renamed To Kalico

Hobbyist 3D printers have traditionally run the open source Marlin and later Klipper firmware, but as some hobbyists push their printers to the limits, more capable and less conservative firmware w…

hackaday.com

Deformable mirror technology takes laser welding and 3D printing to new heights

Yongcui Mi has developed a new technology that enables real-time shaping and control of laser beams for laser welding and directed energy deposition using laser and wire. The innovation is based on the same mirror technology used in advanced telescopes for astronomy.

phys.org

Ore To Iron In A Few Seconds: New Chinese Process Will Revolutionise Smelting

The process of ironmaking has relied for centuries on iron ore, an impure form of iron oxide, slowly being reduced to iron by carbon monoxide in a furnace. Whether that furnace is the charcoal fire…

hackaday.com

From scrap to strength: Solid phase manufacturing transforms aluminum waste into high-value alloys

Metal scrap can be directly transformed and upgraded into high-performance, high-value alloys without the need for conventional melting processes, according to a study by researchers at the Department of Energy's Pacific Northwest National Laboratory.

techxplore.com

From Cans To Sheet Metal, With Ease

Aluminium drinks cans make a great source of thin sheet metal which can be used for all manner of interesting projects, but it’s safe to say that retrieving a sheet of metal from a can is a h…

hackaday.com

New AI cracks complex engineering problems faster than supercomputers

Modeling how cars deform in a crash, how spacecraft respond to extreme environments, or how bridges resist stress could be made thousands of times faster thanks to new artificial intelligence that enables personal computers to solve massive math problems that generally require supercomputers.

techxplore.com

Behind the model: Visualizing an advanced spectrometer with 3D printing

The Department of Energy's Thomas Jefferson National Accelerator Facility scientists have brought the Solenoidal Large Intensity Device (SoLID) experiment to life with a detailed 3D-printed model, small enough to sit on a desk, offering a tangible glimpse into the potential of the future...

phys.org

 

[JPH]

I got some Elegoo PLA Silk silver and I've been trying to find the best setting to get it shinier. I printed out a little skull from a cartoony skeleton I had. The bone colored version used eSun PLA+ and it's completely smooth. The Elegoo silk has some artifact above the brow and on the right cheek (which you can't see). Both were printed at .1mm. Any idea what caused that artifact on the silver one? I'm new to 3D printing so no idea what caused this.

View attachment 1880820

Well...

Did it work?