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3D Printed Small Internal Combustion Engine from Romania

Researchers from Romania 3d printed a small working two-stroke engine on a professional metal 3d printer.

Project description:

Romanian Valentin Stamate, a researcher at the Transilvania University in Brasov, presented a 3D printed two-stroke airplane engine prototype. It cost some EUR 20,000 to manufacture and the expense was undertaken by the Brasov University.

The engine is a 10 cubic centimeters one, with 10,000 rotations per minute. Most of the engine parts were produced by SLM and SLS-type 3D printers out of steel, aluminum, and steel and bronze powders. The only parts that were not 3D printed were the propeller, which is made of wood, the cone and its fastening system, the supporting bearings, the screws, the nuts and the spark. The engine is fueled by a mix of methanol and oil.

Now, I know what you are thinking: interesting project but 20 thousand euro is a lot of money for a small engine. Any you are right.
The first thing that came to my mind was my lawn mover broke a few days ago, and since I live in Croatia the replacement part was hard to find and too expensive for my taste. There are MANY small engines in the world and with right investment and economics of scale, this is a very large market. Just the replacement part market is huge with thousands of different engine models with hundreds of parts each.

THIS WORLD NEEDS CHEAPER and OPEN SOURCED 3D PRINTABLE SMALL ENGINES!!!
Now go and make it happen.

Source:

https://www.romania-insider.com/romanian-researcher-presents-3d-printed-plane-engine-prototype/

Using Common 3D Printers for Hard Science

Here is a great example on how simple 3d printers are being used by scientists to make low cost specialist equipment in field of chemistry.

Team of researchers form University of Helsinki used 3d printers to develop a chemical microreactor.

Gianmario Scotti, one of the researchers, published this video and the description:

In this video abstract we present a 3D printed polypropylene microreactor with an integrated stirring bar and nano-electrospray needle.

The nano-ESI needle is the ion source of our microreactor, and is used to couple it directly to a mass spectrometer. The microreactor is used to analyse chemical reactions with the mass spectrometer. The reaction is analysed as it happens.

We used polypropylene to 3D print the microreactor, because polypropylene is a very refractory polymer in the sense that it is neither affected by strong acids or alkaline solutions, nor by the great majority of solvents used in chemical synthesis.

This is the first 3D printed microreactor with an integrated ion source. It is also the first 3D printed microreactor with an integrated stir bar. These enable us to monitor the chemical reactions in real time.

Here are links to full research paper:

https://www.researchgate.net/publication/315119578_A_miniaturised_3D_printed_polypropylene_reactor_for_online_reaction_analysis_by_mass_spectrometry

http://pubs.rsc.org/en/content/articlelanding/2017/re/c7re00015d#!divAbstract

Here is the printed reactor connected to a spectrometer and held with 3d printed jig

Slovenian Makers 3D Printing and CNCing on Solar Power

IRNAS Institute is a Slovenian non-profit organization involved into DIY science projects, education and open source technology development.
They participate in many events and they demonstrated how additive and subtractive machines can be used powered by photovoltaic panels.

Here is their Troublemaker 3D printer in off-grid configuration:

Here is their GoodEnough Hybrid CNC making Aker planters on solar power:

Link to more extensive article and some other cool project by IRNAS:

http://irnas.eu/bio%20lab%20symbiolab,%20irnas,%20goodenoughcnc/2016/07/05/solar-powered-goodenoughcnc-and-diy-bioscience-at-art-kamp-lent-festival

Low Cost Fully 3D Printed UAV Developed by Airbus

Thor is a fully 3D printable UAV (unmanned aircraft vehicle) developed by Airbus with production price of some 20000 Euro. The cost could probably go even further down, but it is many times cheaper when compared with simillar drones.
Thor is made of some 50 3D printed parts, two electric motors, and a remote control with some 4 weeks needed for printing and assembly. It weights 25 kg and has some 4 meters in wingspan.
It has some 40 km in range and 18 successful flight missions behind it.

Here is the video presentation (in German):

Source and more info:

http://www.airbus.com/newsevents/news-events-single/detail/airbus-tests-high-tech-concepts-with-an-innovative-3d-printed-mini-aircraft/

Precious Plastic DIY Plastic Recycling Machinery

Dave Hakkens developed a great set of open sourced DIY machines for recycling plastic. There are several machines including a 3d printing filament extruder. Every device is well documented with manuals, open sourced and uses simple and easy to find components. There is a shredder, extruder, injection molding machine and compression forming chamber.

here is the promotional video:

You can learn something about many types of plastics, which are everywhere! Like difference between thermoplastics and thermoset plastics:

3D printing filament extruder demo:

Here is a video explaining how you build it:

Here are some things you can make with recycled plastic, ranging from lamp shades to building blocs:

Project homepage where you can learn how to build each machine and about the plastics as a material:

http://preciousplastic.com/en/

You can find all the documentation on:

https://github.com/hakkens

Now, recycling plastics is great idea and useful skill to have, but will it decrease the usage of plastics in general? I do not have the data, but i have strong doubts that it will not. There is a something called Jevons paradox that notes that the more efficiently we use a resource, the rate of a consumption of that resource will increase. Think about it ....

BTW: Dave is a very cool guy, do check his youtube channel: https://youtube.com/user/hakopdetak

Here is his pro-tip video on how to get organized as a DIY / Hacker / Maker guy with industrial plastic crates:

Ikea Footstool Hacked into a 3D Printer

StefanoG from Genova, Italy, used an Ikea footstool and some Prusa i3 Rework parts an made a 3d printer.

You start with this (BTW: I HATE Ikea furniture)

And you get a 3D printer with wooden frame

Here is a detailed build guide with all the files needed:

http://www.instructables.com/id/From-an-Ikea-Footstool-to-Poang-3D-Printer/

Creators homepage:

http://www.arsenalidigitali.it/

BTW:

It is not a first 3d printer made from parts made of Ikea furniture, the first I saw was this Delta:

http://diy3dprinting.blogspot.com/2013/12/custom-delta-3d-printer-built-from-ikea.html

Ourobotics Low-Cost DIY Renegade Open Source Bioprinter

Ourobotics is an Irish company that is developing bioprinters. They published an open source low cost bioprinter based on some standard RepRap parts named Renegade that can be sourced for some 900 USD. I doubt that someone will 3d print a kidney on it in a home workshop but some interesting biohacking project could come up in the future.

Ourobotics also developed high-end bioprinter that can print with 10 materials, has enclosed warm chamber for keeping the cells alive and costs some 12500 Euro.

... here it is printing an ear:

Ourobotics homepage:

https://www.weare3dbioprintinghumans.org/

PDF with build instructions based on a common RepRap:

http://www.3ders.org/images2016/ourobotics-bioprinter-instructions.pdf

More detailed article about the project:

http://www.3ders.org/articles/20160204-ourobotics-releases-completely-open-source-renegade-3d-bioprinter.html

BQ Hephestos V2 3D Printer is Great for Flexible Materials

BQ is well known technology producer from Spain and they have launched their new Hephestos V2 3d printer. It has many powerful features but does not include heated print bed. Reviews show that it is ideal for PLA and elastic filaments due to extruder configuration.

Hephestos V2 Tech Specs:

PRINTING SPEED

Maximum: 200 mm/s* Subject to materials, profiles and software used.

RESOLUTION

Very high - 50 microns
High - 100 microns
Medium - 200 microns
Low - 300 microns

DIMENSIONS

Product without PLA reel:
(x)450 x (y)516 x (z)571 mm (static)
(x)450 x (y)605 x (z)571 mm (dynamic)
Product with PLA reel :
(x)450 x (y)516 x (z)661 mm (static)
(x)450 x (y)605 x (z)661 mm (dynamic)
Enclosure: (x)627 x (y)465 x (z)207 mm
Printable area: (x)210 x (y)297 x (z)220 mm

MATERIALS

Filament diameter: 1,75 mm
PLA, PLA-similar, FilaFlex and other elastomers

EXTRUDER MECHANICS

Own design extruder with double drive gear traction setting and filament guide to maintain compatibility with flexible or soft filaments.
0.4 mm nozzle for 1.75 mm filament
Finned dissipator with axial fan controlled by firmware (low noise)
Cooling blower
Sensor specifically designed for 3D printing (auto-levelling)

GENERAL MECHANICS

Powder-coated aluminium base and frame
Hard chromed bars for the Y axis
Lineal ball bearing for the Y axis
Recirculating ball bearing guides with flat runner for the X and Z axes
Cable chain
Flexible couplings for the screwed rods of the Z axis
3-point print bed levelling system with shock absorber
Rapid system for changing print bed

ELECTRONICS

Proprietary Mega 3D control unit
Inductive sensor for automatic calibration
LCD display with navigation knob
Power supply unit: 12V 100W
Thermistor 100k at the Hot-End
Cartrige heater: 12V 40W

SOFTWARE

Marlin-derived firmware
New features: auto-levelling, manual levelling using inductive sensor exclusively designed for 3D printing, power-saver system
Improved user interface
Recommended environment: Cura Software, slic3r, Repetier, Kisslicer
Files accepted: .gcode
Compatible operating systems: Windows XP or later, Linux and Mac OS X or later

It will be priced at 849,90 €.

BQ homepage: http://www.bq.com/uk/hephestos-2

Hephestos V2 Reviews, Tests and Building Process

Here is an excellent review by well known expert Richard Horne (aka. Richrap) where he also shows his excellent results with flexible filaments in various forms of elastomers.

Blog post with more details:

http://richrap.blogspot.hr/2016/01/building-and-using-bq-hephestos-version.html

Here is Richards video about finalized build, how to build it and some upgrades:

Here is Trevor from 3D Print World Aylesbury with his build log and review:

DreBot Low Cost Belgian RepRap

Andreas Desmedt, a 15 year old student from Belgium developed a new RepRap 3d printer: the DreBot (or Dbot). It can be made for some 300 USD.
Dbot description and technical details:

The base of the printer is a 3030 aluminium extrusion, everything is mounted on this extrusion, wich means everything is tight and compact, making it easy to carry or put away.

The Z axis is made out off 2 12mm rods with a carriage attached to it using 4 LM12UU bearings. In this carriage, there are 2 8mm rods mounted, wich are for the X axis.

The carriage for the X axis is mounted using 3 LM8UU bearings, two on the bottom and one on the top. For the Y axis, I also use 2 8mm rods. The wooden plate for the heatbed is attached to the rods using 3 LM8UU bearings. Both X and Y axis are driven by NEMA17 motors using GT2 belts.

The Z axis is driven by a M8 threaded rod. The Dbot is controlled by a Ramps 1.4 motherboard, and powered by a 360W LED PSU, wich are both also mounted onto the 3030 aluminium extrusion.

The extruder is a fully self designed extruder, wich is also printable. This is done to keep the costs low. Both the extruder motor and the motor that powers the X axis are located on the opposite site and used as a counterweight for the X axis rods and carriage. The ramps board is located in a casing with a fan, for proper cooling.

The bed itself is a MK3 heatbed. The printers volume is 200(X)x190(Y)x185(Z), wich is almost the whole heatbed capacity. I invented my own heatbed nut mounts, so you only have to turn the screw to level the bed and don't think about the nuts.

Dbot in action:

RepRapForum project thread:

http://forums.reprap.org/read.php?166,544217

Andreas will release all the files soon. Here is his blog:

https://andreasdesmedtrc.wordpress.com/

Lewihe Play 69 Euro 3d printer kit from Spain

This must be the cheapest 3d printer in the world! 69 euro! BUT WAIT! It comes without some essential parts like motors, hot end, electronics ...
What is the point of this concept? I'm not sure ...
Maybe if you already have all the steppers and other parts or you salvage them you can easily get the frame ...
People are interested in it since the first batch is sold out so it must be a market niche for it ...

Technical specifications:

Kit includes

Iron plate structure
Extruder support
Print surface
Metal shafts
Complete assembly video
File with all printed parts (also extruder)

Not included

3 motors Nema 14 and 1 motor Nema 17
Standard metric screws 3 and 4
6 units 624zz bearings and 10 units LM6UU bearings, pulleys and belts gt2
Electronics. Ramps for example.
Hot end between 0,2 y 0,8 mm
Power external supply 12V 4A

Printing

Print Technology: Fused deposition modeling
External dimensions: 210 x 210 x 250 mm.
Build Volume: 105 x 105 x 130 mm.
Filament: 1.75 mm
Print rigid and elastic filaments
Compatible with almost all extruders and hot ends

Software

Software: Cura, Repetier, Pronterface, Octoprint and others
3D Model File Types: .stl, .gcode, .obj
Supported OS: Windows (7+), Mac OS X (10+), Linux

Mechanical

Ultra compact system H-bot
Weight full assembled: 2.5 kg.

Electrical

Power supply: External power supply DC 12V 4A

Lewihe Play in action with all the non-included parts:

Company homepage: http://www.lewihe.com/

Sardauscan is the cheapest DIY 3d scanner in the world

Sardauscan is probably the cheapest 3d scanner in the world and there is very little space to reduce the price.
You can build this 3d scanner for under 30 USD. It is controlled by cheap Chinese copy of Arduino Nano and you only need two USB ports on your computer to power it. The most expensive part is a Hercules HD Twist webcam.
The Sardauscan is developed by Fabio Ferretti from Belgium and it is open sourced! Great work Fabio!

All the files needed to build it yourself with some instructionscan be found at:

http://www.thingiverse.com/thing:702470

Software to run it (still under development) can be found at:

https://github.com/Sardau/Sardauscan

Detailed building guide on Instructables:

http://www.instructables.com/id/Build-a-30-laser/

Here is the summary Bill Of Materials with estimated prices:

Bunch of M3 (16 and 20 mm)
Bunch of M4 (12 ans 20 mm)
1x Chinese Arduino Nano (Chinese copy, 4$)
1x Chinese Stepper Motor and controller (5$)
1-4x Line laser (2.5$ piece)
1x Hercules HD twist webcam (15$)
20x20 profile which can be printed: for example http://www.thingiverse.com/thing:280318
Optional 3x 4mm roller (0.3$ piece)
Total estimated price: 26.5$ (1 laser) to 35$ (4 lasers)

Here is the software showing the scan results:

Powerful 3d printable robot arm for your future home manufacturing robotic cell

If you thought that 3d printed robots are just toys, think again! Here is a strong and powerful 3d printed robotic arm with gripper that is based on well-known (I'm not sure which :-)) industrial version.
It is well documented and constantly updated. It comes in "blue" and "orange" version, the blue uses stepper motors, the orange DC-motors. Encoders provide 12 bit resolution with an arm length of some 500mm. That results in less than 1mm accuracy (more realistic is 2mm).

The arm is developed by Andreas Hölldorfer, a master student at the Karlsruhe Institute of Technology (KIT). Great work Andreas! You rule!

Definitely not a toy. Power and strength. I wonder is it precise and fast. Is it durable and serviceable. Source: hackaday.io

Your coffee is served master. Source: hackaday.io

Here is a video playlist that goes trough development process stages:

Hackaday.io project page with additional information, build log and updates:

http://hackaday.io/project/3800-3d-printable-robot-arm

Thingiverse and GitHub with all the files:

http://www.thingiverse.com/4ndreas/collections/printable-robot-arm

https://github.com/4ndreas/BetaBots-Robot-Arm-Project

Project blog:

http://chaozlabs.blogspot.de/2015/01/3d-printable-robot-arm.html

Since the design is publicly available and looks relatively easy to make, I can see it as a part of future home manufacturing cells. Or as a personal assistant. You choose ...

Update:

Here is the latest development of this arm with many improvements.

Update 2:

Here is a new design of the robotic arm: the Mantis arm.

Here is the video of the robotic gripper:

Here is the parts list, more information and files for download:

http://chaozlabs.blogspot.com/2016/04/mantis-robot-arm-part-1-gripper.html

http://www.thingiverse.com/thing:1480408

Laser metal deposition five axis 3d printing for aerospace appliances by Merlin Project

Laser metal deposition (LMD) is DMLS process that is the future of aerospace industry. Since European Union is a manufacturing powerhouse it is investing in many R&D projects like Merlin.
Ever major technological power is in the race to rule the industry and advance in digital manufacturing age.

From project description:

A 5 axis laser metal deposition manufacturing method is being developed by TWI for an EU-funded project which is demonstrating drastic time reduction in the manufacture of aero engine casings.

In LMD, a weld track is formed using metal powder as a filler material which is fed through a coaxial nozzle, to a melt pool created by a focused high-power laser beam.

By traversing both the nozzle and laser, a new material layer develops with precise accuracy and user-defined properties. The application of multi-layering techniques allows 3D structures to be created.

To find out more please visit the project website: http://www.merlin-project.eu/ or go to TWI's website:http://www.twi-global.com/news-events...

Here is a video of the process. It took seven and half hours to print this thin walled casing prototype for jet engine test beds.

Here is a list of LMD technical advantages and disadvantages:

Advantages of LMD:

Metallurgical bond (not mechanical, thermal spray)
Wide variety of available powders
Very low dilution is possible
Relatively high deposition rates
Process is highly repeatable
Low impact on base material compared to similar processes (HAZ)
Superior metallurgy compared to similar processes
Virtually unlimited build height
Very flexible tool path compared to wire applications

Disadvantages of LMD:

High capital equipment costs
Powder cost is typically higher than wire
Capture ratio of additive material < 100% (based on process parameters)
Cannot control the process manually – CNC is required
Experienced, specialized staff required (e.g. laser safety engineer, skilled operators)

LMD laser toolhead schematics:

colorFabb XT-CF20 carbon fiber 3d printing filament

Dutch colorFabb just released their new carbon fiber 3d printing filament that gives new properties and deep matte black finish.

The print quality looks great but there are no independent tests or reviews

Here are the main features of XT-CF20 and technical specifications:

ColorFabb XT CF20 is a copolyester based carbon fiber composite material that is based on the unique Amphora 3D polymer from Eastman Chemical and is loaded with no less than 20% specially sourced carbon fibers suitable for 3D Printing.
Extreme High Flex Modulus (6.2 GPa) / twice as stiff as PLA
Moderate strain at break (8-10%), so no extreme brittle filament, butt toughness
High Glass Temp. (Tg = 80C)
Very high Melt strength
Very high Melt Viscosity
Good dimensional accuracy and stability
Low odor / Styrene Free solution
Easy processing on many platforms
High attractive matt black surface
Diameter Tolerance: ± 0.05 mm
Density: 1.370 g/cm3
Glass Transition Temperature: 75C
Price: 49,95 euro

One thing to keep in mind that this type of filament is abrasive and will wear out your brass nozzle much sooner then common thermopolymers, PLA, ABS and others.

Here is a video presentation of XT-CF20:

Product page:

http://colorfabb.com/xt-cf20/

First Austrian 3d printing classroom in polytechnic school Vorchdorf

In RepRap facebook group I saw very interesting news. In Austria they opened first 3d printing classroom in a polytechnic school in Vorchdorf. The teaching cabinet looks great and has 8 3d printers. Project was made possible by cooperation of government, school, RepRap Austria and Otelo.

My first thought was: WHY DON'T WE HAVE IT HERE IN CROATIA?!?!?!?

Austria is country we look up to and hopefully someone will create a similar project. I'm pessimistic since IT is still being thought with floppy disks.We are sooooo faaaar behind with everything ...

You go Vorchdorf! For The Win!

How is your school system doing? Is your country implementing any 3d printing educational program for the kids?

Source: Ben Ny facebook

The Kiosk by Bruce Sterling is dark vision of future and 3d printing

"The Kiosk" is an EXCELLENT must-read (or listen) science fiction novella by Bruce Sterling which deals with the dystopian future and 3d printing.
Bruce Sterling is a master SF writer famous for his work in fiction and technology theory and he currently lives in Serbia which is in my neighborhood and was once part of Yugoslavia.

The novella is clearly influenced by culture and history of Ex-Yugoslavia which makes it even more appealing to me.
It deals with life of kiosk owner Borislav from East Euroslavia who gets a "Fabrikator" machine. I will not spoil your enjoyment of the audiobook but it gets dark, violent, interesting ... there are 3d printed bullets printed with carbon particles and other 3d printed appliances ... the whole society of main protagonist is shaped by 3d printing...

You can download it here for free, it is read by Peter Cavell and starts around 10:30 into the podcast:

http://www.starshipsofa.com/blog/2010/01/13/aural-delights-no-116-bruce-sterling/

It is hour and a half well spent, I listened to it while walking my dog ...

FYI: it is not an optimistic work ...

For a similary themed dystopian short story you can also check out Printcrime by Cory Doctorow:

http://craphound.com/?p=573

"The Kiosk" inspired a project:

‘KIOSK’ explores a near future scenario in which digital fabrication is so ubiquitous that we see it appear on our
street corners. With KIOSK the user can ‘appropriate, sample, remix, improve, up/downscale or copy new objects
and 3D-print them on the spot.’ KIOSK operates as a portable 3D copyshop capable of producing a ‘custom made
fix for your broken shoe, materialise an illegal download of Starck’s Juicy Salif orange squeezer that you modified for better performance or quickly print out a present for your sister’s birthday.’ For The Machine Unfold, in collaboration with Indianen, created a new creative digital copy station.

A project commissioned by Z33, House for contemporary art and MU Eindhoven.
With the support of Bits from Bytes and Jo Van Bostraeten.
A collaboration with Indianen.

POP3D Second space 3d printer to be sent to ISS by ESA

European Space Agency is also sending a 3d printer to International Space Station. It will be the second 3d printer in space. The printer is named POP3D and it's developed in Italy. First ISS 3d printer is already working on ISS and was developed by "Made in Space" and delivered by SpaceX.

Here is the video by Altran:

From the source article:

Europe’s very first 3D printer in space is scheduled for installation aboard the ISS next year.
Designed and built in Italy, it will be put to the test as part as ESA astronaut Samantha Cristoforetti’s Futura mission, and is set to reach orbit in the first half of next year. Samantha herself will be launched on her six-month Station assignment on 23 November.

“The POP3D Portable On-Board Printer is a small 3D printer that requires very limited power and crew involvement to operate,” explained Luca Enrietti of Altran, prime contractor for the compact printer.

The unit is a cube with 25 cm sides and prints with biodegradable and harmless plastic using a heat-based process.

“Part of the challenge of designing a 3D printer for the Station was to ensure its operation does not affect the crew environment,” added Giorgio Musso of Thales Alenia Space Italy, principal investigator for the project.

Funded by Italy’s ASI space agency, POP3D should take about half an hour to produce a single plastic part, which will eventually be returned to Earth for detailed testing, including comparison with an otherwise identical part printed on the ground.

“There is big potential all along the value chain, to save cost and mass,” noted Reinhard Schlitt, heading OHB’s Engineering Services.

“But right now the way parts are being produced in various different ways. As a satellite manufacturer, we need common standards in place so we can compare competing supplier parts on a like-for-like basis.

“Europe does have a lead in this technology – the latest laser machines are coming from here for export to the US and China – so we should build on that.”

Source:

http://www.esa.int/Our_Activities/Space_Engineering_Technology/Europe_s_3D_printer_set_for_Space_Station

POP3D space based 3d printer developed in Italy (Source: ESA)

Astronaut Samantha Cristoforetti, source: ESA

Using DC motors to replace steppers on x and y axis

Here is a new project of running a 3d printer with cheap DC servo motors. It was developed by misan from Spain and he used it successfully on x and y axis of his Prusa I3. Dc motors are controlled by Arduino Uno and the project is based on "servostrap" project. DC motors are cheap and can be found and salvaged in recyclable or scrap electronic device such as paper printers and others.

He made the code and bracket designs available. Thnx misan!

DC servo motor powering y axis of Prusa I3

You can find all the files and code here:

https://www.youmagine.com/designs/dc-motor-closed-loop-control-software

http://www.thingiverse.com/thing:618042

Here are the files for y-axis DC motor drive:

http://www.thingiverse.com/thing:620183

Here is video of stepper motor and servo running together:

Here is a video of DC servo motor powering the x-axis:

Here is a video of DC servo motors powering the x- and y-axis:

Project description:

This program uses an Arduino for a closed-loop control of a DC-motor.
Motor motion is detected by a quadrature encoder.
Two inputs named STEP and DIR allow changing the target position.
Serial port prints current position and target position every second.
Serial input can be used to feed a new location for the servo (no CR LF).
Pins used:
Digital inputs 2 & 8 are connected to the two encoder signals (AB).
Digital input 3 is the STEP input.
Analog input 0 is the DIR input.
Digital outputs 5 & 6 control the PWM outputs for the motor (I am using half L298 here).
Please note PID gains kp, ki, kd need to be tuned to each different setup.

BetAbram construction 3d printers from Slovenia

Slovenia is our little neighboring country to the west and they have several 3d printing projects like: KORUZA laser wifi, PrintGreen and TroubleMaker 3d printer. Now they have a bigger machine in the game that can print large concrete structures or buildings with BetAbram series of large 3d printers.
The machines are moving on a rail system and feature metal gantry with extruder that deposits concrete / cement mixture layers.

BetAbram has three different sized printers: P1, P2 and P3. Z-axis height is theoretically unlimited since it can be extended with a rails systems to print tall buildings.

In the X and Y axes, the P3 can 3d print buildings with plate surface of 4 meters x 3 meters (12 square meters), the P2 is capable of 12 meters x 6 meters (72 square meters), and the biggest, P1 is capable of 16 meters x 9 meters (144 square meters).

Prices will probably range starting from 15000 euro up to 30000 euro.

Here is a video of BetAbram machine in action:

BetAbram company page: http://betabram.com/index.html

Dimafix adhesive spray for heated beds

Dimafix is a new adhesive spray solution to improve bounding of printed objects to print surface and avoid warping.
This adhesive spray formula is activated when the temperature of the print surface reaches around 50C and up to maximum at 80C. The objects can be removed when the temperature drops below 40C.
It is priced at 9,48 euro per 1 unit DIMAFIX (400 ml / 10 oz). The spray is non-toxic, has low odor and it can be washed away from the surface with water.

Dimafix homepage:

http://www.dimafix.com/features.html

Here is video review and test of Dimafix in realistic conditions but it is in Spanish:

First product of this kind for adhesion improving was 3DLac which is produced near the Dimafix origin town.

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