3D printed clay natural refrigerator (Botijo)

Natural refrigerator (Botijo) is a project by Gianluca Pugliese, a maker that has collaborated with WASP for many years. To print the botijo he used a Delta WASP 2040 with Clay Kit - LDM WASP Extruder.

Botijo (Spanish name) is a traditional "bottle" to preserve cold water.

History

Botijo was invented in 1611 in wikipedia you can read a lille bit of history  https://en.wikipedia.org/wiki/Botijo.

Design

Gianluca studied the shape to obtain the same efficiency, but with a little bit of design, and because the goal is to print it with a 3D printer, He had to calculate the right hoverhang.

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Gianluca tried many shapes including a lowpoly and thin shell. You can download the STL file here: http://www.thingiverse.com/thing:1821124.

Material

The traditional one is made in red clay, to print Gianluca tried Paperclay that is a composite with cellulose, paper and clay. When you fire the piece, the paper will gone and the piece results well porous. Cellulose helps during the printing to obtain printing with big hoverhang.

Print

To print the botijo he used a Delta WASP 2040 with Clay Kit - LDM WASP Extruder, using a 2mm nozzle with a 0.6 layer height. He had a really good result.

Firing

Like all kinds of Clay you have to fire the piece, in this case paperclay needs a 1250 degree oven, in a ceramic shop you can choose what kind of temperature you needs in base of your clay.

SEE THE PROJECT ON THE WEBSITE OF INSTRUCTABLES >>


WASP launches the new professional clay extruder

WASP LAUNCHES THE FIRST PROFESSIONAL EXTRUDER FOR CERAMIC MATERIALS ADAPTABLE TO OTHERS 3D PRINTER

LDM (liquid deposit modeling) Wasp Extruder is the name of the new extruder for ceramic materials that can be adapted to most of the 3D printers on the market.

WASP’s work has always been focused on the development of systems that allow the use of functional materials like ceramics, porcelain, clay, alumine, zirconium and advanced ceramics, in order to promote digital handicraft and self-production. By launching this new product the group aims to promote the print of fluid-dense materials and advanced ceramics in the world.

In two years of time and after experimenting all the possible combinations of pressure, nozzles and materials WASP has created a model of extruder which is able to interrupt and restart the extrusion flow.

The new LDM Wasp Extruder  can reach a level of precision which is very close to that of plastic polymers extruders thanks to the combination of a screw extruder and a pressure extruder. With this technology it is possible to control with accuracy the flow of material and also to use retraction to interrupt deposition.

Innovation:

-Bubble eliminating extruder, it eliminates air bubbles in the mixture

-Extrusion controlling system with retraction option

-Outward pressure multiplier until 40 bar in the screw extruder

The new WASP Clay Kit includes a 3 kg tank, which can be substituted with a 15 kg one, on demand. The preceding needle experimental models did not allow middle size printing because of the limited amount of mixture they could contain. The tank can be refilled or cleaned simply by opening the caps located at the extremes. Inside, there is a piston with two 4 bar gaskets which pushes the material through the teflon pipe (diameter 12mm) which supplies the extruder. The cap located on the back has a safety valve set at 8 bar.

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On the stand of the tank there is a pressure regulator and a return preventing valve. Inside the chamber, the material is funneled toward a screw which pushes it out producing a pressure of 40 bar without damaging the system. It would be impossible to reach such a pressure level with a common pressure extruder. This technology allows the air to outflow upward , eliminating the probability of finding bubbles inside the mixture. Like for a common pressure extruder, if there were bubbles the flow would be interrupted and the print would be damaged. Furthermore, thanks to the screw, the density of the printing materials is higher. This allows to reduce the time for their change of state, from liquid to solid, thus eliminating the risk of collapse of the printed object. In case the screw or the chamber were damaged they can be easily substituted.

Adaptability to other machines

The set was created to be installed on WASP printers, but can be adapted to most of the existing machines. It is very easy to install LDM Wasp Extruder on other machines. Firstly, it is necessary to print the supporting cover (the source files are provided by WASP). Secondly, the extruder must be linked to the wire and the “number of steps per millimeter” must be set to 400.

This configurations are provided by the most common slicing softwares, like Slic3r or Cura.

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Clay 3D printing: ceramic pieces realized by Delta WASP 2040


Vinegraal on Kickstarter

Balsamic Vinegar of Modena 3D Printed Collection Bottles to celebrate 50 years of the Coterie

Vinegraal is a porcelain Bottle 3D printed with the Delta WASP 2040. It has been designed to celebrate a very important anniversary: 50 years of the Spilamberto’s Coterie, the Association that defends the Traditional Balsamic Vinegar of Modena.

The project:

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Vinegraal is a Project conceived and developed by SlowD, a Web Platform for Artisans and product Designers. The name is the result of “vinegar” and “Graal”, the legendary bowl. The bottle is 3D printed in bronzed porcelain and hand-finished by Potters from Faenza. A bottle stopper that could be utilized as a nib to decorate food course is included.

This is a project conceived by Ludovica Canzutti, a young Designer selected for her ability to reshape the antique ceramic bottle for Balsamic Vinegar.

Vinegraal is a collectors’ item. It will be produced in a limited edition: 500 signed, numbered and guaranteed pieces with Certificates of Authenticity. Vinegraal will be on Kickstarter for sale the next May from 9th to 23rd. Prices range is from 300€ to 700€, the kit could also include a Massimo Bottura’s Recipe Book or a Spilanbergo Tour.

Moreover, there is a Unique Piece that includes a dinner at the “Francescana di Bottura”, with a value of 3000€.

The 3D printing by Delta WASP 2040:

Press conference:


Evolution in clay 3D printing

We started printing clay vases a few moths ago, with a pressure extruder. Clay is a good material because it can be mixed again after the first printing, can be reused, can be finished after the printing and, as we said, it gives a commercial value and a concrete use to the printed pieces.
The pressure extruder didn’t consent to stop the flow, so we created another one: it works with a cochlea, and has the same retraction, interruption and the same control in laying down small ammount of material, of the PLA printing.

We’re preparing ourselves to go to Paris, that’s why we thought to print the emperor bust with new clay extruder, which arrives till 0,35 mm.First results were hilarious for us, but during the week we understood that they were just the starting point for a quick evolution. You can see in pictures underlying the difference between the first print and the last one. Between those there are just a few days of distance and a lot of work.

Napoleon used to say “Every day you loose is a chance of misfortune for the future”. He was famous for being quick, he was always in motion, even when it seemed to be vain. Playing in advance was one of his main quality and we feel we have it. The pressure extruder that we brought to Argillà was a real news but we didn’t stop and we’re going to Paris with the new one.

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In the picture you can see the first print of the imperor’s head, in which the mixture was too fluid and remained attached to the needle.  Despite of this, the laurel crown was closed and we were happy about the results. The second picture is the last print. After improving the extruder and the mixture we reached incredibly precise results. Between the first and the last one there has been a week.

It is clear that everybody, with a scanner that costs a few hundred euros and WASP system is able to realize clay busts (or anything else) in a few hours. The process we finished is a real chance of occupation, a concrete opportunity of work.

Enthusiasm stays haigh, just like curiosity and sense of challenge.

Stay tuned!

Zzzz

 

Here you have some pictures and videos:

 

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