- Title: Israeli scientists pave the way for 3D-printed wooden furniture
- Date: 12th September 2022
- Summary: JERUSALEM (SEPTEMBER 6, 2022) (REUTERS) MATERIAL SCIENCE P.H.D. STUDENT AT THE HEBREW UNIVERSITY, DORON KAM, WHO WAS PART OF THE TEAM DEVELOPING 3D-PRINTED WOOD, PREPARING PRINTER KAM PLACING WOODEN INK SYRINGE IN PRINTER VARIOUS OF 3D PRINTING WITH WOODEN INK TIME LAPS VIDEO OF 3D PRINTING WITH WOODEN-BASED OBJECT (MUTE) (SOUNDBITE) (English) MATERIAL SCIENCE P.H.D. STUDENT AT THE HEBREW UNIVERSITY, DORON KAM, WHO WAS PART OF THE TEAM DEVELOPING 3D-PRINTED WOOD, SAYING: "So what we are doing, we are placing an ink ... a wooden ink inside an extruder and then we are depositing the material onto a substrate. We are manufacturing 2D object or 2D object with thickness and then we're letting the water to evaporate and then the wood shrinks and warps. And if we are printing in high flow rates or high speeds or slow flow rate or if we're doing different patterns of the printing we can, the end result will be different. And we have this nice control both the theoretical side of the model of what will happen and both the practical side of really an ink that can change and warp through time and then can make a different curvatures throughout the different objects." TIME LAPS VIDEO OF 3D-PRINTED WOOD OBJECT WARPING WHILE DRYING UP (MUTE) VARIOUS OF 3D-PRINTED WOOD-BASED OBJECTS AFTER DRYING UP AND WARPING (SOUNDBITE) (English) MATERIAL SCIENCE P.H.D. STUDENT AT THE HEBREW UNIVERSITY, DORON KAM, WHO WAS PART OF THE TEAM DEVELOPING 3D-PRINTED WOOD, SAYING: "This is really really similar to what is happening in nature so if you take a tree and you chop it down water evaporates and then there is a volume decrease in the wood. And because of the volume decrease and the symmetry (inaudible) of the cell arrangement you have different warpings and this is really what we are doing. We are mimicking what happens in nature." WOODEN INK PRINTED IN ROUND PATTERN KAM WATCHING PRINTER TIME LAPS VIDEO OF 3D PRINTING WITH WOODEN-BASED OBJECT (MUTE) (SOUNDBITE) (English) MATERIAL SCIENCE P.H.D. STUDENT AT THE HEBREW UNIVERSITY, DORON KAM, WHO WAS PART OF THE TEAM DEVELOPING 3D-PRINTED WOOD, SAYING: "So I think the most important stuff of the material is that this is really sustainable material. So we don't have any formaldehyde based resin, there's no synthetic materials, everything is wood based. It's not only just wood based, we can take wood residues and use it. So, for example if you have a broken chair we can take the broken chair, chop it down and then you can print your own chair again, again and again. Again, we don't want stuff to last forever, we want it to last for three, four, five years and then you can print it again, because again we don't want materials to last forever in nature. So the material here is quite unique." VARIOUS OF SCIENTIST FILLING SYRINGE WITH WOODEN PASTE VARIOUS OF SCIENTIST SQUEEZING WOODEN PASTE OUT OF SYRINGE SCIENTISTS IN LAB (SOUNDBITE) (English) MATERIAL SCIENCE P.H.D. STUDENT AT THE HEBREW UNIVERSITY, DORON KAM, WHO WAS PART OF THE TEAM DEVELOPING 3D-PRINTED WOOD, SAYING: "And we're trying to deliver a message to engineers and to designers that you can use this tool to produce other stuff. But, indeed we can produce a meter-size length if you would like, you can have nice, different curvatures throughout the object. I think it's a really really nice fertile ground to further on do some applicative products with it." VARIOUS OF 3D PRINTING OF WOODEN OBJECT TIME LAPS VIDEO OF 3D PRINTING WITH WOODEN-BASED OBJECT (MUTE) WOODEN-BASED OBJECT AFTER PRINTING VARIOUS OF WOODEN BASED OBJECTS AFTER DRYING UP AND WARPING
- Embargoed: 26th September 2022 15:03
- Keywords: 3D printing 3D wood printing Hebrew University of Jerusalem Israel Wooden-based objects
- Location: JERUSALEM
- City: JERUSALEM
- Country: Israel
- Topics: Middle East,Science
- Reuters ID: LVA001449311092022RP1
- Aspect Ratio: 16:9
- Story Text: Could a 3D printer be enough for you to create a new wooden chair, table or bookshelf?
Israeli scientists in the Hebrew University of Jerusalem developed a wood-based paste that, after being 3D-printed, dries up and warps into the design set in advance.
The scientists seek to create 4D material which changes through time as does natural wood. Once the fluids in the the ink -- made of wood waste and other natural ingredients -- evaporate, the object dries out and changes its shape.
But unlike nature, the scientists say they have developed several ways to program and control the result. By 3D printing in a certain pattern, and controlling the number of layers and printing speed, they can determine how the wood will warp as it dries.
"If we are printing in high flow rates or high speeds or slow flow rate or if we're doing different patterns of the printing... the end result will be different," said Doron Kam, a P.H.D student of the Hebrew University.
"We have this nice control both the theoretical side of the model of what will happen and both the practical side of really ink that can change and warp through time and then can make a different curvatures throughout the different objects," he added.
The end product is designed to be recyclable, sustainable and "mimic nature" - qualities Kam said are needed in a world that suffers from long-lasting materials like plastic.
"If you have a broken chair we can take the broken chair, chop it down and then you can print your own chair again, again and again."
Scientists hope that in the future this would allow manufactures to produce complicated wooden objects.
"We're trying to deliver a message to engineers and to designers that you can use this tool to produce other stuff," Kam said.
"I think it's a really really nice fertile ground to further on do some applicative products with it."
(Production: Dedi Hayun, Ilan Rosenberg, Lee Marzel, Lianne Back) - Copyright Holder: REUTERS
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