Don’t worry, he’s mostly harmless!
Basílio, a goodfella, a Lobster, a good friend and a Google SketchUp ninja!Well, yesterday was AltLab meetup day, and the plan was: make a 3D model of an X axis carriage for a mini-mendel.It was a success! After a few hours using Google SketchUp, we’ve managed to create a darn good looking carriage.
The next step will be print it and assemble it.
At least it’s what she said! Violeta… the printer, I mean 🙂
From the beginning, tuesday it’s meeting day atAltLab and I’ve discussed with Mauricio the possibility of using the Mini-Mendel with an adapter, a Pen Holder to write the pcb’s layouts. The X axis carriage from the Mini-Mendel was disassembled and after I’ve finished assemble it, it looked a little wobbly, and we don’t want a wobbly printer!
So, Thingiverse to the rescue, and we found theMendel Mini-Carriage, and of we go… to the Makerbot!!!
This was my first interaction with a 3d Printer, and everything went well… until… when the print reached about 1cm of height, the extruder decided stop the extrusion… damn!
We started over, but there was a suspicion over the laptop, so we’ve tried using the SD Card to print… it didn’t work! Now the suspect is the version 3 firmware… and the laptop… it’s a cabala or lack of luck :p
Did we give up? No, of course not, we’ve selected a smaller piece of the Mini-Carriage and pressed “BUILD”, and all went as expected, the first piece of the Mini-carriage was a success!
Let’s try another… and all went well.. until the 1cm of height… the extruder failed again :p
It was getting late, so we’ve closed the shop for the day… err… night.
But not everything was lost, we’ve plotted a plan to develop a Gen8 electronics, just wait for it 🙂
Today went back to AltLab for a little learning experience. A great friend of mine, Fernando Afonso, came to Lisbon to the launch of MEO Kanal, a product he helped bringing to life. Since he was here, he was invited by AltLab to give a small workshop on “PCB Making… The Fernando Afonso way”. :)The method used was Toner Transfer, where you print the circuit layout with a laser printer on cheap magazine paper (the more glossier is better), then, with the toner side over the copper side and woot… the “sandwich” off it go into a slightly modified laminator (around 10 times) and the it’s submerged in freezing cold water.The low quality magazine paper it’s easily scrubbed off the pcb and it’s ready to the acid bath.
We used Acid Cupric Chloride as etchant, when the pcb is submerged it turns into a… kryptonite green… spooky I say!In the end we’ve got a Generation 7 Electronics pcb for the Prusa Air… next step, buy the components and soldering it 😀
Text by Filipe Cruz
On the 25 and 26 January, AZ Labs showcased some projects at the library of Vila Verde. This showcase was the first step in a series of iniatives promoted by Casa do Conhecimento in Vila Verde in colaboration with Audiência Zero. 500 students from local schools were brought to a secret room in the municipal library to discover creative, artistic and open source applications of technology we had setup to show them.
The response from the students, teachers and organizing comittee was great and we look forward to colaborate some more with the people of Vila Verde in the near future!
In total we showcased 7 projects.
Drawdio – An esoteric electronic instrument invented by some folks at MIT exploring the conductivity of graffite on paper or just common water. The user closes the electronic circuit through touch, triggering sound through a small speaker. Showcased by Ricardo Lobo and João Gonçalves.
GroundSpines Graffiti – The laser tagging prototype developed at xDA, inspired by theGRL laser tag system. This project was originally developed by Tiago Serra, Tony Gonçalves and Victor Martins to beautify abandoned buildings in Coimbra. Showcased by Pedro Salgado.
RC Micro Machines – Originally developed through a sprint session with people from the different AZ Labs, maintained by Nuno Barros, Ricardo Lobo, João Gonçalves and Pedro Salgado. Showcased by Nuno Barros.
AnonMirror – An interactive installation about social activism in our society. Made by Filipe Cruz using OpenFrameworks, Kinect and a wrapper developed by Victor Martins.
MakerBot – Ricardo Lobo showcased and did some live maintenance fixes on “Catarina”, one of the two AZ Labs Cupcake Makerbots we have. Printing some whistles and showingThingieverse.
New Picasso – A kinect controlled robot that paints the floor. Users wave their hands in front of the kinect to send commands through Arduino to the servo motors of the robot. Project by Guilherme Martins, Pedro Salgado and João Gonçalves.
Teleforma – Project by Ricardo Lobo, João Gonçalves and Mécia Sá dealing with the relationship that people have with speech and conversation. The project is based on a mechanical physical interface that allows two users to translate visually the form of their speech.
The AZ Labs residency at Espaço do Tempo in Montemor-o-Novo is sadly over for now. Folks have been working hard to finish things up for the proto exhibition of projects we had on Saturday.
A few projects were shelved or abandoned for different reasons. Not stable enough, not enough time, no right materials, not enough beer. In the end were left with 9 projects.
AR Cubes — André Sier developed a few experiments with cubes glued with printed augmented reality fiducial markers. Different markers trigger different effects. You can play with them to make different combinations of objects and lines interacting with each other.
Tracking Head — Tiago Serra, Andrea Inocêncio and Mauricio Martins worked on a manequin head rescued during a dumpster diving session. They equipped a box with IR leds and use a camera with filters to track the movement of the box. With these values they send rotation information to a servo motor equiped in the base of the manequin head. The same values are also sent to a software that selects a corresponding angle photo which is projected in the manequin. This system makes the freaky manequin head rotate in the direction of the object.
Talking Head — Next to the Tracking Head we have a speaker box equipped wih an arduino, an ir receiver and a wave shield. When the box handled by the user aims at the speaker box it triggers random samples from a sample pool, giving the illusion that the head itself is talking. Mauricio, André, Filipe, João and Rita worked on this project.
Tracking Boids — The floor of the Tracking Head space is covered with small light spots flying around. These boids, programmed by André Sier may look like random disco lights on first glance but when someone moves into the camera they flock towards the user.
Micro CNC — Tiago Rorke had been working on a Micro CNC project, pieces printed with the Makerbot. Tereza Cardoso gave him a hand making a project out of it by taking photos of the attenders of the residency, downgrading them to vector format and having the micro cnc sketch them. They are drawn on the walls of the residency itself, along with qr code linking to video interviews talking about each persons involvement with the different projects.
Paint Video Signals — Andrea Inocêncio recorded some short videos of red blue and black paint being applied to different mediums (water, paper, table). Filipe Cruz did a little processing sketch to extract midi values from a grid of pixels in the video and send them to reaktor. Some generative sound tests were recorded and mixed into a video dvd.
Blip Blop Blir Boxes — André Sier and Mauricio Martins worked on a few small boxes packed with an Arduino, IR sensors, LEDs and speakers. Boxes pointing to each other make the LEDs change their color. A third box pointed to the previous boxes makes them give out some blips and blops sounds.
“O mundo é em cada instante o que ele não pode não ser.” — A project conceived by Patricia Proença consisting of a hand drawn animation of a tree growing being projected into a wall. The animation is triggered when a watering can equiped with a cellphone is tilted into an alien plant object. Tiago Serra gave her a hand with the technical implementation.
Trailchi — Guilherme Cartaxo and Sónia Malaquias been working for while on their project involving long exposions to tai chi sessions performed in the dark with a sword and suit equipped with 12 LEDs. The captured animations makes some beautiful light trails art. Also helps analyse the motion of the session.