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This is a neat way to save a bit of money when you order boards. Normally you pay an extra $25-50 for a solder stencil, either a silkscreen or a sheet of metal with holes where the solder paste needs to go

Neat, but useful?
Currently I print my board on two transparencies, then aligning them on the UV-sensitized board, then placing whole thing under a UV light source. Two minutes of work followed by five minutes of wait?
This new method would have me remove the resin tank, align and mount the PCB to the build platform (double sided tape?), convert my gerbers to a jpg/bmp, then finally print to the 3D printer?
IF it’s saving time/money, it doesn’t appear that significant. Maybe if mounting and aligning the PCB was very quick and easy? Although I’m imagining a frustrating process involving double-side tape and wasted copper clad trying to correct the alignment.

Create it REAL, a Danish 3D printing technology provider is pleased to announce the first worldwide 3D printing real time processor. After 2 years of research and developments, our team have succeeded in producing a range of chips that are going to boost the 3D printer industry.
Speed is the key breakthrough - the 3D RTP v450 can reach up to 450mm/sec which is some three times faster than typical desktop printers on the market today. 3D printer manufacturers will be able to solve the speed issue - which is blocking market adoption - without changing current designs and mechanics.
The chips are initially targeting Fused Filament Fabrication printers, but are also ready to support SLA technology (Stereolithography) and will support SLS (Selective Laser Sintering) in a near future.
Create it REAL partners will appreciate the ease of integration in their current range of printers. Using only the 3D RTP chip (installed on a standard dim socket), or the full motherboard including all the controllers for the different printer parts, OEMs will be able to release new versions of their products quickly.
Finally, Create it REAL also offers an optional intuitive software to print 3D files, optimized to take advantage of all the features included in the 3DRTP chip. If needed, OEMs can get a complete tailor-made package to meet their exact needs and make sure they offer unique value to their customers.

“Our objective is to support all the 3D printer players, from small start-ups up to large OEMs, and to offer them easy to integrate, state-of-the-art technologies so they can spend their time and resources on their most important assets: their customers” says Jeremie Pierre Gay, Create it REAL’s CEO.

Key Features Summary

• Worldwide first 3D printing real time processor

• Boost 3D printers speed up to 450mm/sec

• 3 different versions to address the different market needs from desktop to high-end

• Improved print quality thanks to smoother X,Y,Z (simultaneous control)

• Integrated temperature control for optimum filament extrusion

• Supports 3 motors, up to 2 extruders, 1 heated bed, 2 fans and 6 limit switches (start/end positions)

• Create it REAL’s Motherboard also includes an innovative semi-automatic calibration mode to quickly set up the printer


The development kit will be available end-January 2014 for 3D printer manufacturers eager to integrate Create it REAL technologies into their products.

This 3D printer board electronics has been designed and developed using all the great contributions and feedback from the RepRap CloneWars group in Spain. All shortcomings from other similar boards have been addressed providing an affordable yet feature rich 3D printer electronics. The SAV MkI, improves upon the previous production-grade electronics set (Gen6, sanguinololu) by adding well dimensioned power MOSFETS, SD card support, on-board regulated 3.3V to connect to 3.3V level peripherals such us Bluetooth, as well as improving on USB link's reliability and reducing cost by eliminating the FTDI UART chip.
The SAV MkI is a derivative of Teensylu and the Printrboard, an AT90USB1286 development board originally based on Sanguinololu. The Atmel AT90USB1286 MCU has an on-chip USB, removing the need for the FTDI UART (USB-to-serial) IC. On-chip USB means that you will get faster firmware upload times, communications, g-code transfer and reduce the time file transfers take from the host to the on-board microSD card. The AT90USB connects at any baud rate regardless of firmware configuration, and operates virtually free of serial communication errors/pauses.

In addition, the SAV MkI has broken out the second UART with its levels adjusted to 3.3V logic. You will be able to connect any HC-05 or HC-06 bluetooth dongle to wirelessly control your printer.
Features
Feature rich yet affordable 3d printer electronics. The SAV MkI has been designed after taking feedback from the Clone Wars RepRapers out there. We have come through with an electronics that we believe will meet your expectations.

• Hotend and heatbed well dimensioned FETs that can take up to 15A without heat-sinks.

• High speed native USB interface connectivity going up to 12Mbps so that there is no lag on your prints.

• As opposed to the 38400-115200 baud via FTDI. The end result is: virtually no serial communication errors (common with Sanguinololu and Generation_6_Electronics).

• 12V built-in fan controller for your layer fan or hot end cooling.

• Micro SD reader for autonomous printing.

• Bluetooth dongle (dongle not provided, tested with HC-05 and HC-06) interface adapted to its logic levels for wireless operation.

• Expansion bus to connect a keyboard and LCD.

• Support for 4 standard pololu compatible stepper motor drivers.

The Cartesian Co. printer EX¹ transforms electronics and prototyping in the same way that 3D printing has made things possible that were inconceivable even 5 years ago.
The EX¹ printer is not designed to create any 3D object like normal 3D printers. It’s been crafted and designed for one key purpose, to allow you to 3D print circuit boards, layering silver nano particles onto paper or any suitable surface to rapidly create a circuit board. In 2011, an article in Wired said that within two years 3D printers could print electronic circuits. Two years to the day, we’re announcing the EX¹, a printer that allows you to rapidly 3D print circuit boards.
The process is as easy as clicking File > Print. This lets you create electronics, just as you've envisioned - wearable electronics, paper circuits, printed computers or whatever you imagine. A 3D printer creates the objects of your imagination; the EX¹ lets you create the electronics of your imagination.

Wearable circuits

One capability of the EX¹ we're really excited about is the ability to print straight onto fabric. Anyone who has used conductive thread will tell you how frustrating it is when the thread breaks but you can't find the break! With the EX¹ you can print circuits straight onto the material of your choice.

How it works

The reason we created the EX¹ is simple; we got sick of making PCBs by hand. We got so sick we set out to find a way to make circuits quickly and effortlessly.
The basic principle of operation is simple. Two inkjet cartridges similar to the ones in your desktop printer print images on a substrate, but instead of ink they lay down two different chemicals. When these two chemicals mix, a reaction occurs to produce silver nano particles, leaving a silver image on the substrate.

After a year of working on the EX¹ we believe we've finally created a printer that will allow people to design and make radically new things. With a print area of 17.5 x 8cm (6.9 x 3.2in) you'll be able to print boards well above the size of what you can design in the free version of Eagle. At a size of 43 X 32 X 17cm (17 x 12.6 x 6.7in) its roughly the same size as your Canon or Epson printer at home. Weighing in at only 6kg (13.5lb) it's very portable and will be perfect to take to work or your local hackerspace.

Software

How hard is it to use your home printer or office photocopier? Not hard (we hope), and that's exactly what we've aimed for with our software.
But of course printing electronics isn't exactly the same as printing a cute baby photo. We give you complete flexibility with our software, anything from just importing an image and clicking print, all the way through to having control over every printing variable.
We've included presets and tools to make getting into making electronics as easy as possible, while at the same time allowing experienced pros to push the boundaries of what can be done.

Materials

As well as making it easy for people to create complex circuits we wanted to make it easier to put them together. You can always solder the circuits but if you're not at that stage yet we've been successfully using conductive glues that's as easy as finger painting. In fact, when you use it with a paper circuit it almost IS finger painting!
We're developing new ways of treating and coating everyday materials to be printed on, so there's nothing holding you back from creating whatever your heart desires.
The materials you can print onto is only half of the equation. Equally important are the inks you're using to do so. We're actively working on new ink formulations and processes to ensure using your printer is as easy and reliable as possible.

The inks we are using are very safe and we won't be gouging you for refills like some printer companies out there (we hate that too!).

http://www.cartesianco.com/

They finished successful Kickstarter:

http://www.kickstarter.com/projects/cartesianco/the-ex1-rapid-3d-printing-of-circuit-boards

Here they demonstrate printed electronic circuits on 3d printed PLA:

Working electronic circuit printed on paper

Printed wearable electronic circuit

PARC is the Palo Alto Research Center which is one of the world's most famous R&D labs (ethernet, object oriented printing, guis, and much more were invented here). In this five-part tour you'll see what these smart people are working on now. Steve Jobs, famously, in the early 1980s, visited this lab and bought the rights to get a deep look at the technology that would become the Macintosh.
Here you see some really crazy new circuit boards that can be printed on a variety of flexible materials. All printed on an inkjet printer. Get a look at how this technology could change the future.

Video 2 - printed batteries 

This is part II of our PARC innovation tour. Here you'll see how PARC is inkjet printing lithium ion batteries and by doing that getting up to 30% more energy density without changing the chemistry of how these batteries work.

Video 3 - making things in democratic manufacturing with 3d printing (or how to get your custom printed SUV)

How do you make things? Well, a team at PARC is working on helping people who make things make them faster and cheaper through a new software suite that you'll see here. PARC is a famous lab in Silicon Valley and this is part III of a five-part tour.