New 3D printer works 100 times faster and produces much stronger material

[jimmy olsen]

The destruction of the Titans of Industry is at hand!

http://www.theguardian.com/science/2015/mar/19/scientists-create-terminator-2-inspired-3d-printer

Scientists create Terminator 2-inspired 3D printer

New technique works 100 times faster than conventional 3D printing and makes objects within minutes by simply lifting them out of a pool of resin

Hannah Devlin Science correspondent

Thursday 19 March 2015 18.45 GMT Last modified on Friday 20 March 2015 00.49 GMT

Scientists have created a Terminator 2-inspired 3D printer that lifts objects fully formed from a pool of goo in a matter of minutes.

The technique, which could transform 3D printing, works up to 100 times faster than current methods and produces objects that are considerably stronger.

And if the machine looks like the product of a science fiction author's imagination, it may be because its inventors were inspired by the killer robot, T-1000, that rises menacingly from a puddle of molten metal in the film.

"We were inspired by the Terminator 2 scene," said Joseph DeSimone, a professor of chemistry at University of North Carolina and a founder of the company, Carbon3D.

"Why couldn't you have an object rise out of a puddle in real time with essentially no waste?"

The new technique, called continuous liquid interface production (Clip), features a moving platform that lifts printed objects gently out of a reservoir of liquid resin. The technique combines pulses of light, which solidify the resin, and oxygen, which prevents it from solidifying, to craft intricate three-dimensional objects.

Crucially, it works continually, unlike current printers that construct objects by building layer upon layer.

"3D printing is actually a misnomer; it is actually 2D printing over and over again," DeSimone said. "There are mushrooms that grow faster than 3D printed parts."

In a demonstration, it took the Clip printer seven minutes to produce a hollow geometric ball – a task which would have taken about 10 hours with a conventional 3D printer.

Printing finished parts at speeds competitive with current manufacturing processes is "a game changer", said DeSimone.

In a study, published on Thursday in the journal Science, DeSimone and colleagues describe how their technique combines the manipulation of oxygen and light.

At the base of the liquid resin reservoir, is an oxygen permeable window – similar to a contact lens – which leads to an oxygen rich "dead zone", less than 1mm thick, at the bottom of the tank.

Oxygen stops the resin from solidifying, even when light is projected through it, meaning that the solidification happens just above the dead zone.

The precise shape that solidifies is controlled by light projections through the permeable window. Since the liquid layer is always present beneath the slowly-forming object, there is no need to wait for new resin to flow in and the object can be pulled upwards steadily.

The continuity of the process also means that Clip produces much stronger objects than the slate-like structure of objects printed in layers, which can be sturdy in one direction, but will shatter under force in the other.

The 3D-printed gun may have made the headlines, but it would have been useless at withstanding an explosion in practice.

Jonathan Rowley, of Digits2Widgets, a 3D printing company in London, said the strength factor was even more impressive than the new technique's speed.

"At the moment most 3D printers produce crap slowly and I don't need crap fast.

"If you add the speed of this technology to the extra strength it provides it means you could produce parts that start to compete with traditional manufacturing. It's probably something of a big deal."

[Caliga]

No it isn't.  Relax.

[garbon]

Crucially, it works continually, unlike current printers that construct objects by building layer upon layer.

"3D printing is actually a misnomer; it is actually 2D printing over and over again," DeSimone said. "There are mushrooms that grow faster than 3D printed parts."

Given that the layers made are actually three dimensional, seems pretty accurate to me.

[DGuller]

Crucially, it works continually, unlike current printers that construct objects by building layer upon layer.

"3D printing is actually a misnomer; it is actually 2D printing over and over again," DeSimone said. "There are mushrooms that grow faster than 3D printed parts."

Given that the layers made are actually three dimensional, seems pretty accurate to me.

[DontSayBanana]

Crucially, it works continually, unlike current printers that construct objects by building layer upon layer.

"3D printing is actually a misnomer; it is actually 2D printing over and over again," DeSimone said. "There are mushrooms that grow faster than 3D printed parts."

Given that the layers made are actually three dimensional, seems pretty accurate to me.

Hair-splitting.  It's only three-dimensional in the same sense that a sheet of paper is still three-dimensional.  It's just printing cross-section after cross-section after cross-section after factoring in how thick the extruding filament is.

At work, there's a book on 3D printing that proudly shows off a car (their words, it's more of a buggy) whose body parts were made with 3D printing, and the overall shape of the buggy isn't bad, but even the low-res picture used for the cover shows the limitations of the 3D printing process- there's all kinds of ridges and seams where curved pieces start to have a shallower slope.

Which is why I really like the sound of this tech- the comparison in build times doesn't even factor in time that needs to be spent "finishing" a model , filling in those ridges and sanding everything down to get a decently smooth surface.

[garbon]

Crucially, it works continually, unlike current printers that construct objects by building layer upon layer.

"3D printing is actually a misnomer; it is actually 2D printing over and over again," DeSimone said. "There are mushrooms that grow faster than 3D printed parts."

Given that the layers made are actually three dimensional, seems pretty accurate to me.

Hair-splitting.  It's only three-dimensional in the same sense that a sheet of paper is still three-dimensional.  It's just printing cross-section after cross-section after cross-section after factoring in how thick the extruding filament is.

Yes, thank you. I'm familiar with how a 3D printer prints.

[DontSayBanana]

Yes, thank you. I'm familiar with how a 3D printer prints.

So were you posting that to show how witty you are or just to up your postcount?

[garbon]

Yes, thank you. I'm familiar with how a 3D printer prints.

So were you posting that to show how witty you are or just to up your postcount?

Is that suppose to be a joke coming from you?

[DGuller]

Meow!

[Eddie Teach]

Meow!

That's not really a hostile noise.

[DGuller]

Meow!

That's not really a hostile noise.

Hiss!!! 

[Eddie Teach]

More like it. 

[Zanza]

The destruction of the Titans of Industry is at hand!

Titans of industry will just use this on an industrial scale and will still have a cost advantage over small scale 3D printing.

[Siege]

Timmay, industrial 3D printing started in the late 80s.
Cosumer 3D printing is the new revolution, but its only in its first steps.
There is lot to do for the technology to mature and be able to replace Walmart, as promised.