Dec 26, 2015

Materials for Extreme 3D Printing, Talk by Walter Voit

Here is a great talk at Google about more advanced 3d printing materials and their properties. The talk is delivered by Walter Voit.

Talk description:
Adaptive 3D Technologies makes the toughest - and softest - 3D printed polymers on the market by creating custom materials specifically designed to be 3D printed. Advanced processing techniques eliminate anisotropy and result in durable, high quality parts that can be used directly in practical applications far beyond current stereotypes of 3D printing (prototyping). Walter Voit is the president of Adaptive 3D Technologies and an Assistant Professor in Materials Science and Engineering and Mechanical Engineering at The University of Texas at Dallas.

Factory In A Closet

Spiritplumber developed a small DIY digital fabrication manufacturing cell in his closet. He has made and installed a 3D printer, hybrid tool (extruder / laser cutter / liquid printer) and organometallic filament maker.

Very cool setup Spiritplumber! :-)

Do you see a smoke detector surrounded by burn marks? :-) Lesson to be learned there ...

Dec 25, 2015

Dremel Cutting Platform Made With 3D Printing

Dremel tools or their clones are very useful for everyday work. Now you can 3d print an adjustable cutting platform for them.

Here is a demonstration video:

All the files to make it can be found at:

Look, it can even cut trough metal rods and it will protect you from all the sparks flying :-)

Cheap DIY Linear Servo Based on SG92R Motor

Here is a simple way to make cheap linear servo movement with a 5 USD SG92R motor and some 3d printing. It can move some 200 gram at 6V.

Construction guide and testing video:

Files for it can be found at:

Dec 20, 2015

110 / 230 V Mains Powered Heated Bed

12V? Nah ...
Moritz Walter wants to power his print bed from the mains power line with 110 / 230 V!

Project description:
Like many, I'm fed up with the common MK2B heated bed. It has about 1.2 Ω when wired in 12 V configuration and 4.8 when wired in 24 V configuration. Both times it outputs about 120 W of heat when driven by the appropriate voltage, resulting heatup times to print temperature of 10 to 20 minutes.
Heatup time can be reduced to 2 minutes by simply driving it with 24 V while wiring it in 12 V configuration, but well, this almost max out a seperate 500 W 24 V power supply I dedicated to driving the heated bed. Additional requirements for this setup are at least AWG 15 wire and a high current MOSFET or SSR.
The additional cost of a 500W 24 V power supply, high current SSR and heavy wire is not neglectable at all, since the can easily be half of a printers price tag. Also, bulky power supplys and wires do not contribute to the overall design and weight aspects of a 3D printer.
There are many benefits of a mains voltage heated bed: I will be driven directly from mains, skips the need for an expensive power supply and can be driven by a cheap low current SSR without heatsink. It's also cheap and provides a structural support for your printing plate, be it glass, tufnol/garolite or PEI - which silicone heater pads do not do.
Thus, a mains voltage heated bed must exist, and this project is dedicated to make it real. Additionally, this is also an attempt in making this the safest heated bed available. If you have concerns with the design, please share your ideas in the comments.

Here is his project homepage:

Stay safe people!

3D Printable NFC Bracelet

Here is a nice little project on how to embed a cheap NFC tag into a 3d printed bracelet.

Detailed guide and files can be found at:

Is 3d printing useful?

Kent Watson has made this video showing some useful and useless objects ...

Project description:
3d Printed Watches which don't tell time! Items created to waste time! Has the world gone mad!?

This video highlights some of the more recent designs I have made using Fusion 360 and 3D printed in the Digital Craft Research Lab at UWM.

Dec 12, 2015

3D Printable Chording Handheld Keyboard

Here is a new 3d printable chorded keyboard project that is powered with Arduino Micro and can be used via BLE or USB. It was developed by 24hourengineer who has a nice DIY electronics blog.

Detailed build guide and code can be found at:

For a different version take a look at:

Laser Engraver from Discarded DVD Drives with 3D printed Frame

If you have few old DVD drives and an Arduino Uno you can make a simple laser engraver for some 15 USD. The supporting frame can be 3d printed or made from any material you can hack.

Here is the video of the same design with standard frame:

All files can be found at:

Detailed instructions are at:

Full Size 3D Printed Acoustic Guitar

Fouche 3D printing well known for their large functional parts like 3d printed car jack, just released the video of full sized fully functional 3d printed DIY acoustic guitar. We have seen 3d printed electric guitars before, but they are simple to make since there is no resonant body.

There have been acoustic guitars 3d printed earlier, but they were small, made from several parts or made on an industrial 3d printer.

This guitar print was made possible due to their large format custom build 3d printer.

Here is video of it being played:

Acoustic 3D Printed Guitar
And here is the video.... Acoustic 3d printed guitar....prototype 1
Posted by Fouche 3D Printing on Saturday, December 12, 2015

Dec 5, 2015

Iteration and Repair of Existing 3d Printed Objects Without Re-printing

I have seen the future! Changing already 3d printed objects without the need to 3d print them again! Group of researchers developed this method that uses multifinctional 3d printer with laser 3d scanner and CNC milling head to make changes to the already 3d printed object to add or subtract from the previous design.

You can also repair failed prints and make changes on the fly. The developers call this system "Patching". It saves a lot of time and material. Imagine spending few minutes repairing object that would take hours to reprint!

Seeing it in action is very impressive:

Hopefully this technique will find wider application and adoption on mainstream machines and design/control software.

Project description:

Personal fabrication is currently a one-way process: Once an object has been fabricated with a 3D printer, it cannot be changed anymore; any change requires printing a new version from scratch. In this paper, we propose a different approach: instead of re-printing the entire object from scratch, we suggest patching the existing object and replacing only the unsatisfactory parts. This saves material and reduces waste, making a first step towards more sustainable 3D printing.
This project is a collaboration between Hasso Plattner Institute and Cornell University.
More Information:

The machine has several additional axis of movement with laser 3d scanner and CN mill head

Patching Physical Objects is a research project by:
Alexander Teibrich,
Stefanie Mueller,
François Guimbretière,
Robert Kovacs,
Patrick Baudisch,

LaserStacker Makes 3D Objects by Laser Cutting and Welding

Researchers at Hasso Plattner Institute have made several 3d fabrication project with laser cutting and other methods. Here is the new one: LaserStacker where they use a laser cutter to weld together 3d objects.
They even made functional scissors.

Project description:
LaserStacker uses the laser cutter to not only cut but also to weld. Users place not one acrylic sheet, but a stack of acrylic sheets into their cutter. In a single process, LaserStacker cuts each individual layer to shape (through all layers above it), welds layers by melting material at their interface, and heals undesired cuts in higher layers. When users take out the object from the laser cutter, it is already assembled.
This is a project from the Human-Computer Interaction Lab at Hasso Plattner Institute.
More Information:
LaserStacker is a research project by:
Udayan Umapathi, Chen, Mueller, http://www.stefaniemueller.orgLudwig Wall,
Anna Seufert,
Patrick Baudisch,

Earlier project:

3D Printable Transformable Spider Robot

Someone on Instructables posted a full tutorial and files for nice Arduino controlled little transforming spider robot. It walks on its "legs" and drives on the wheels. Cool!

Spiderbot in action:

Detailed construction guide can be found at:

Anatomy of the spider transformer:

Apple and Autodesk Patent Color 3D Printing (Apple patents liquid metal casting also)

OMG NOOOOO ... Apple files a patent for a 3d printer that prints colored objects with color being applied by separate nozzle. Maybe it's a tipe of defensive patenting or some corporate IP strategy. I hope they develop it and make it cool, but after Apple Pen fiasco I'm not getting my hopes up ...

Patent page:


PS: I am really not an Apple fan ...

Update (21.2.2016.)

Autodesk has patented color 3d printing also. Maybe it is the beginning of color patent wars.

Update (19.3.2016.):

Apple has filed for a new patent connected to 3d printing and molding technologies:
Apple’s patent application covers a method for 3D printing investment molds to be filled with molten amorphous alloy. These alloys are configured to form a bulk metallic glass (BMG) on cooling. BMGs, (also known as Bulk Amporhous Alloys) are a new class of metallic alloys that are extremely strong, with superior elastic strain limits and resistance under shock impact. They are therefore ideal for the manufacturing of electronic device housings and cases.
Here is a patent page: LINK

Looks like Apple is going into transformable and liquid metals!!! Remember Terminator ...

Source and ore info: