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faBrickation a new approach to rapid prototyping of functional objects, such as the body of a head-mounted display. The key idea is to save 3D printing time by automatically substituting sub-volumes with standard building blocks — in our case Lego bricks.

When making the body for a head-mounted display, for example, getting the optical path right is paramount. Users thus mark the lens mounts as “high-resolution” to indicate that these should later be 3D printed. faBrickator then 3D prints these parts. It also generates instructions that show users how to create everything else from Lego bricks.
If users iterate on the design later, faBrickator offers even greater benefit as it allows re-printing only the elements that changed. We validated our system at the example of three 3D models of functional objects. On average, our system fabricates objects 2.44 times faster than traditional 3D printing while requiring only 14 minutes of manual assembly.

More Information: http://www.hpi.uni-potsdam.de/baudisc...
faBrickation is a research project by
Stefanie Mueller, http://www.stefaniemueller.org 

Tobias Mohr,
Kerstin Guenther,
Johannes Frohnhofen,
Patrick Baudisch, http://www.patrickbaudisch.com

Hasso Plattner Institute, Germany

Must-watch video if you are interested into DIY, desktop manufacturing machines, hacking, making and generally awesome stuff!

Nadya Peek speaks about the process and basics of making machines that make, technology, digital fabrication economics, MIT modern high-end CNC machines and their limitations, how g-code is very stupid  and how biologists buy expensive machines that are easy and cheap to DIY ...
She also talks and shows many interesting machines that you can make yourself like liquid transfer and auto pipetting machines...



From video description:

Making a new control system for a machine is often a slow and tedious task. Maybe you already have a 3 axis stage, and you already know how to move it around. But what if you want to add a camera and use it for position feedback? You'd have to redesign the whole hardware layer.

I'll talk about some ways I've built modularity into control systems for machines so that you can quickly iterate on different kinds of machine systems without getting stuck in hardware land forever. This includes connecting synchronized nodes across a network and importing legacy nodes for things like, say, an old pressure box you found in the trash and has rs232 in.

Down with gcode! Long live machine control.

You can see her PopFab factory in a briefcase here:

http://diy3dprinting.blogspot.com/2012/07/popfab-factory-in-briefcase.html

Here is the post about MTM Multifab and Fab-in-a-Box:

http://diy3dprinting.blogspot.com/2014/01/mtm-multifab-multitool-desktop.html

Nadya Peeks home page:

http://infosyncratic.nl/

I found one of her presentations which loosely follows the theme of the talk in PDF format:

http://cba.mit.edu/events/13.03.scifab/Peek.pdf

She also spoke about some high end CNC machines being monitored by gyroscope, sensors and GPS so they can not be moved without authorization to prevent them begin exported to blacklisted countries. Here you can see the perfect example of that crazy security policy: http://boingboing.net/2014/01/06/high-end-cnc-machines-cant-b.html


The talk was part of 30th Chaos Communication Congress (30c3) by the Chaos Computer Club (CCC) at Congress Centrum Hamburg (CCH)

Polypropylene (PP) filament is semi-crystalline thermoplastics which is produced according to US FDA regulations and the relevant EU standards. Basically, it is made so you can print plates, cups, beakers, food containers, spoons and other food serving utensils.
This filament can be used with all printers that have a 3mm hotend and it comes in black color (very appetizing color). 2,1kg spool is priced at 99,95 euro and the 750g spool is priced at 54,95 euro.
Now, maybe the material itself is food safe, however, when you push it trough the hot extruder and deposit it two food un-safe things could happen:

1. The 3d printed object could have small (micro) pores where bacteria could develop and get into your food
2. You could get some heavy metals residue from your brass hot end.

Still, it is good to see that food related filament technology is advancing.
























Product page:

https://shop.germanreprap.com/en/categorie?cat=62

From the Printupy product page:

http://www.2printbeta.de/product_info.php?products_id=253

This 3D printer is the quintessence of the state-of-the-art technology - a professional looking desktop accessory:

• All 3 axes are independently controlled by stepper motor driven T2.5 belts which guarantees highest printing precision
• Rigid aluminium frame
• Screw-on linear bearings for extra precision
• Core: A autonomous Echinus Board with SD-card-slot and an elegant Echinus Vision contoller
• A precisely manufactured 3D printhead type J-Head (with in-house modifications)
• Integrated heated printbed
• Integrated power supply
• Lasercut acrylic glass housing
• CNC made gears
• 3 optical endstops for highest calibration accuracy of the printing origin
• All wires disappear inside the smooth acrylic housing
• USB stick with clearly presented manual and pre-configured software

Technical data:

• LxWxH: 420mm x 420mm x 700mm
• huge printing dimensions: 200mm x 200mm x 220mm (X,Y,Z)
• Filament diameter: 3mm
• Materials: PLA, soft-PLA, ABS, Laywoo-D3
• Maximal print speed: 100 mm/s
• Minimal layer thickness: 50 µm
• Nozzle orifices: 0.5mm, 0.35mm and 0.25mm
• Weight: 12kg
• Powersupply: AC 230V, 50-60 Hz
• Supported file format: STL (stereo lithography)
• Input: direktly via USB or independent from the PC with a SD-card
• Price: 1200 euro for single extruder version, 1500 euro for dual extruder version

Advantages of a timing belt driven Z-axis:
Most 3D printer systems use a lead screw or a threaded rod as drive for the Z-axis. Backlash and imbalance cause errors in X- and Y-direction when moving the Z-axis. These errors are visible as vertical pattern on the printed object.
When using two timing belts as attachment for the Z-axis these errors can cleverly be avoided. Consequently the Z-axis is nearly error free, thus the layers of a printed object lie perfectly on top of each other.

RAMPS version 1.4.2 open source controller electronics board is available.




























From product page (google translated from German):

The new RAMPS 1.4.2 promises significantly fewer failures and has other improvements , such as 2 motor connections per socket or a labeling slots . The RepRap Arduino Mega Pololu Shield (short: RAMPS ) is the centerpiece of a RepRap 3D printer . On the board there are all electronic components such as mosfets transistors , fuses, plug-in connections for the Pololu stepper motor drivers, etc. Previous versions of the shelf had the problem that the electronics are often failed.

The RAMPS 1.4.2 is equipped with automotive fuses instead of the usual thermal fuse now. These new backups are less sensitive to heating . In order to enhance availability, the strength of the traces of 35 microns were increased to 70 microns and its course optimized. The limit switches now have a capacitor that prevents accidental turn off .

Further improvements can be found at the bases for the Pololu motor driver . You have the RAMPS 1.4.2 through two ports and can use it to drive two motors per connection . There is now a slot for external reset, which has advantages when the RAMPS is installed in an enclosure , since you do not have to do without the reset button . By labels on the slots for a warmed bed , fan and extruder also the wiring is simple .

Our RAMPS 1.4.2 is of course open source. The board is a fork of the open-source project of ultimachine / Ramps 1.4 ( https://github.com/GermanRepRap/Ramps-1.4.2 ) and retrieve in Github .

It can be applied to all RepRap 3D printer with RAMPS electronics, such as the PRotos V2, use and runs on RAMPS 1.3 and 1.4 firmware with no change , so it can easily be exchanged for existing RAMPS .

The following connections are provided:

Smart people of Uni Postdam made this hand guided laser cutter. User draws with laser pointer and laser cutter follows the path. There are different laser pointer types for different materials which trigger different operations by laser cutter.







Project homepage:

http://www.hpi.uni-potsdam.de/baudisch/projects/constructable.html

Detailed paper in PDF:

http://www.stefaniemueller.org/wp-content/themes/f8-lite/images/constructable/2012-uist-mueller-lopes-baudisch-constructable.pdf

More FFF 3d printers every day ... NEO was presented on EuroMold 2013 by German RepRap





Technical specification:

• Price: 799 euro
• Dimensions: 330 x 330 x 330 mm
• Weight: ~ 6 kg
• Printing volume (X / Y / Z): 150 x 150 x 150 mm
• Materials: PLA 1.75 mm
• Extruder temperature: max. 265 °C
• Speed: ~ 15mm³ / Sec
• Layer Thickness min: 0.1 mm
• Nozzle sizes: 0.3 / 0.4 / 0.5 mm (0.5 mm incl. in the delivery)
• Positioning accuracy: +/- 0,1 mm
• Component tolerance: +/- 0,1 mm
• Voltage: 230 V~
• Power consumption: ~ 50 W

https://www.germanreprap.com/


Source and photo copyright:

http://www.3ders.org/articles/20131204-german-reprap-introduces-new-3d-printer-neo-at-euromold.html

• Fully functional parts are produced rapidly with standard granulates, from 3D CAD files without a mould
• Clocked nozzle closure with piezo technology ensures high part quality
• 3 or 5-axis component carrier with linear motors for complex 3D geometries without support structure
• Intuitive operation using hand gestures on the high-quality multi-touch screen
• Quiet, dust-free production environment

About AFK process from the company page:

Unlike conventional additive manufacturing techniques, with ARBURG Plastic Freeforming (AKF) standard granulates are melted as in the injection moulding process. The freeformer produces the component without support structures, layer by layer from minuscule droplets. The discharge unit with nozzle remains stationary, while the component carrier moves.
The globally unique AKF process makes use of 3D CAD files, which are read in directly by the freeformer. After start-up, everything else takes place automatically. A nozzle closure with piezo technology builds up the desired component layer by layer from minuscule plastic droplets. During this process, the item under construction is moved by a component carrier with three or five axes.

• Unique: fully functional parts are created with minuscule plastic droplets, without a mould
• Versatile: low-cost standard granulates are used instead of expensive special materials
• No support structures: stationary discharge unit and moving component carrier for complex 3D geometries
• Combinable: AKF is also suitable for processing two components, e.g. in moving hard/soft combinations
• Effortless: parts are automatically built up layer by layer on the basis of 3D CAD files

Video and more information:

http://www.arburg.com/en/solutions/freeformer/#!prettyPhoto

Freeformer brochure (PDF):

http://www.arburg.com/fileadmin/redaktion/Mediathek/Prospekte/ARBURG_freeformer_680836_en_GB.pdf

This video shows how German midsize high-tech company is using 3d printing to optimize it's production process, cut costs drastically and reduce time needed for component manufacturing.

Detailed videos of design and build process of new DIY RepRap based 3d printer project: ProtoForge. It looks very high quality built and well designed printer.






From video description:

These are the key features:
Build volume: 300x300x300 mm³ with heated bed up to 110 °C
Material: PLA, ABS, PVA
Dual Print head: 200-300g
Controller: Arduino Mega + Ramps 1.4
Extruder System: bowden extruder with feedrate measurement and control
Housing: rigid aluminum frame and pmma (plexiglas) panels

Main goals:

• big build volume
• as fast as possible
• print quality as good as possible
• PVA support material

Video source:

Another day, another new printer. Or ten of them ...