In Norway, I met a really nice guy working on an ambient light display, which consisted of little round transparent patches containing oil and water. If one applies a (probably quite high) voltage to the patches, the oil will move to the side, thus letting light shine trough. If you line up an array of these things, and apply a current to specific ones, it's possible to display information. Kind of like E-ink is supposed to work i guess, but surely way cooler... you can build it yourself.
Then, last wednesday, I met this guy at the lab at Pakhuis de Zwijger, who is also trying to build an display, only he is using bacteria! Apparently, if you lower (or raise, not sure which) the PH value of certain bacteria, you can get the suckers to glow. So using these fluorescent bacteria, one can in theory create a display... how cool is that? You will have actual dead pixels!
I don't think our houses will be equipped with this technique for some time, because the stuff dies rather quickly, and is not really easy to handle. Real cool project though.
Check out his site: biodisplay
Showing posts with label 3D printer. Show all posts
Showing posts with label 3D printer. Show all posts
Monday, March 17, 2008
Tuesday, February 5, 2008
D/A conversion
Yesterday we started building the Fab@Home 3D printers...
With these printers, that you can build yourself, you can print 3D objects using material that hardens after being squished from a syringe... rubbers, clay but also icing for your cakes and desserts.
We worked in teams, about 5 per team at the beginning, slowly diminishing in numbers as we went along. some people (me) worked at the wiring, soldering, cutting wires and connecting stepper-motors to controller-boards. others began assembling the acrylic, while still others started on assembly of the mechanical parts (ball-bearings and the likes).
Today, at around 4, our first models where being printed. One of the teams made a square block with a hole, but I wanted something more difficult... so i found a model of the Penrose Triangle (see this site for the model) to print.
Since this model contains overhangs it was not possible to print (people who know about 3D printing or CNC machines will understand this problem). So I first tried to make a support structure in Blender, but since that would also contain overhangs or be incomplete, we decided to print into a layer of water, and see if the material would get enough support from that.
The model still has to harden, but it's looking good.
Click on one of the pictures for more.
With these printers, that you can build yourself, you can print 3D objects using material that hardens after being squished from a syringe... rubbers, clay but also icing for your cakes and desserts.
We worked in teams, about 5 per team at the beginning, slowly diminishing in numbers as we went along. some people (me) worked at the wiring, soldering, cutting wires and connecting stepper-motors to controller-boards. others began assembling the acrylic, while still others started on assembly of the mechanical parts (ball-bearings and the likes).
Today, at around 4, our first models where being printed. One of the teams made a square block with a hole, but I wanted something more difficult... so i found a model of the Penrose Triangle (see this site for the model) to print.
Since this model contains overhangs it was not possible to print (people who know about 3D printing or CNC machines will understand this problem). So I first tried to make a support structure in Blender, but since that would also contain overhangs or be incomplete, we decided to print into a layer of water, and see if the material would get enough support from that.
The model still has to harden, but it's looking good.
Click on one of the pictures for more.
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