Sep 30, 2014

Make your own 3d printed DIY chorded keyboard

Chorded keyboard is a computer keyboard where you get characters by pressing several keys at the same time.
This input method should improve speed, make your keyboard one hand usable, smaller and mobile or just make you look like ultra cool elite hax0r.

There are many different projects and now there is a Chordy KEY project with 3d printable case.

Chordy KEY combinations. Well, there is a learning curve if you want to be cool ...

Project homepage on hackadayio :

GitHub repostiory with all the details and STL files:

From project description:
Chording keyboards have been around for a while, but appear to not be taken seriously. Although you can see many data entry methods throughout science fiction but usually involve hundreds of buttons that require the user to look at them and appear to be hard to work in adverse conditions or with bulk such as gloves.
The chording keyboard can take on many different shapes and easily used with one hand. The keys can be easily acquired without the use of pips and build with proper spacing to be used with gloves. The lower amount of keys used makes the manufacturing of the device cheaper and simpler.
This project is a completed left hand proof of concept chording keyboard that currently has all functionality of a standard keyboard minus function keys and plenty of combinations to add them and many macros. The base microcontroller is a ATmega32U4 packaged as a sparkfun pro micro, 8 buttons and 6 indicating leds the case is 3d printed and backed with craft foam.

Collection of Blender 3d printing design tutorials from beginner to intermediate level

I want to learn how to use Blender more for my 3d printing modeling  needs. Here is collection of tutorial videos I found you may find also useful.

Here is simple Blender 3d design for 3d printing tutorial by Jim Craig:

Here is one slightly more complex and detailed made by EcTechTime:

Tutorial by Benjamin Morgan on basic model and Blender setup preparing it for 3d printing:

Here is the entire playlist with many detailed Bender tutorial videos if you want to get into it deeper created by Jason Welsh:

Enjoy learning!

Sep 29, 2014

How to make printable 3d models from complex datasets of water and sewage systems

Scott Kildall has several projects involving complex data sets processing and transforming them into 3d printable objects for information visualization.
He made and interesting tutorial on how to make 3d printable data crystals and now he published two tutorials on how to make 3d printable models that are three dimensional maps made from geospatial data of complex sewer and water city systems.
How to guides are treasure if you are into 3d visualization of complex data sets and map making.

Here are links to Instructables tutorials with detailed workflow ans software used. The entire process is not too complex and can be done even if you are novice:

San Francisco sewers:

San Francisco water system:

BTW: do remember that the map is NOT the territory ;-)

WirePrint wireframe 3d printable models for faster prototyping by Hasso Plattner Institute and Cornell University

Researchers from Hasso Plattner Institute and Cornell University developed WirePrint software for faster prototyping. It basically custs down the time needed to 3d print an object by replacing solid volumes with wire frames.

A question comes to my mind: if this is publicly funded institute will the release the code under one of open source license? Public money should provide public with some tangible goods and services ...
I don't know much about how this sort of institution operates, gets funding and disseminates knowledge form applied research ...

From video description:
WirePrint is a low-fi fabrication technique that prints 3D models as wireframe previews. By extruding filament directly into 3D space instead of printing layer-wise, we achieve a speed-up of up to 10x compared to traditional 3D printing.
This project is a collaboration between Hasso Plattner Institute and Cornell University.
More Information:
WirePrint is a research project by:
Stefanie Mueller,
Sangha Im,
Serafima Gurevich,
Alexander Teibrich,
Lisa Pfisterer,
François Guimbretière,
Patrick Baudisch,

This institute had a previous faBrickation project that uses Lego blocks for volume replacement in rapid prototyping:

Sep 28, 2014

PETG 3d printing filament

PETG is a 3d printing filament made from PET-G which is Glycol-modified PET, the modification is done by adding a second glycol during polymerization.
The resulting molecular structure is irregular and the resin is clear and amorphous with a glass transition temperature of 88 C (190 F).
Filament made from it gives good combination of toughness, clarity and stiffness

More about PET-G:

Here are videos from Mihai Oltean showing actual 3d printing with PETG and object properties:

Here are links to his blogposts about his PETG experiences with more details:

From his experience PETG doesn't stick to blue tape or to cool glass printbed.

Detailed post about testing strength of PLA vs. PETG printed objects:

Looks like PETG doesn't break but bends at much higher weight loads then PLA which breaks relativity easy.

Sep 27, 2014

First space 3d printer delivered to ISS by SpaceX Dragon riding on Falcon 9 rocket (including launch and docking video)

First 3d printer designed for microgravity and space station environment is successfully delivered to International Space Station by SpaceX Dragon capsule.

The space 3d printer was developed by "Made in Space" company.

Here is the video of SpaceX Falcon rocket launch:

Here is video of docking procedure of SpaceX Dragon on ISS and robotic arm capture:

I always watch videos since I'm space technology fan since the earliest childhood.
We are living in interesting times ... private companies developing space replicators and launching rockets and space capsules ... wow ...


Sep 25, 2014

Cerberus Gigante big Delta 3d printer made by Steve Graber

Large custom Deltas seem to be very popular recently. Here is a new Ceberus Gigante 3d printer made by Steve Graber and used by artist Kevin Caron to make big sculptures.  It is made out of CNC cut aluminum. It can 3d print 34" in diameter and 4'6" in height (metric is superior guys) and uses 3 mm filament (that's better).
Nice work Steve!

Here is Kevins website:

3d printing directly on aluminum surface

Radusava posted this video showing printing directly on heated aluminum print bed treated only with hair spray.
I'm not sure if its is heated or not and what exact material he is using, but the model looks like it is sticking solidly to the surface.

Easy method for acetone smoothing an ABS 3d printed model

Make has made a simple guide on how to smooth ABS 3d printed objects with acetone.