A ESPERANÇA ESTÁ ONDE MENOS SE ESPERA

Lourenço was happy with his life, until his father lost his job. Than big changes started to occur and Lourenço got to handle a lot of reponsabilities, but the best thing you do, is go check the movie yourself  ;)

Oh! And don’t forget to participate on the challenge “Declama Para a Tua Dama”.

http://mgnfilmes.pt/aesperanca/

Servo Motor Hack @ AltLab

Here’s another way to hack a servo motor. This time Njay shows us how to do it, and it is quite easy. The code to use is the same for a normal servo, when you point it to the center (90 degrees) it will stop, than if you increment the angle it will start moving on way, if you decrement the angle it will move the other way.

(the video is in portuguese)

zezinho, the poser – interactive installation

This is the final result of the first stage of this project. An installation where zezinho calls for visitors and when a visitor reachs the mixing controllers he waits for new poses.

If you are nearby Lisbon, you can visit zezinho until 9 of July at:
FABRICA FEATURES Lisboa. Rua Garrett, nº83 | Megastore United Colors of Benetton, 4º andar | 1200-203 Lisboa

el sapatero

OddBot is going to China, and he created several packs with robotics stuff and came up with a great creative challenge wich is to create a video with the keyword FUN. One of the extra points was to build something with paper, wood, and cheap materials, no techy thing here, the main purpose was to spend a great time creating a cool video to make others laugh. The other extra point was to build a PCB with non PCB materials like, paper, card, or any other thing, I’m so happy to know that paperduino was one of the inspiration to this competition.

“el sapatero” came with this great challenge in mind, and I wanted to build something really nonsense.. and started to play with stuff I have, and my wife appear with this silly boots made out of recycled card. This card boots(?) are used inside shoes to keep their original shape and I knew in that precise moment that I have to use them! :)


and the video for the challenge: http://letsmakerobots.com/node/8630



This was the first layout. I thought that I could build some kind of a walker… but I was wrong :D


This is a motor plug made with polymorph..


Polymorph plugged into the motor and with a plastic bit.. (can’t explain this in english)  lol


The polymorph structure was shaped in a way that gives fully support to the card boots.


This is the circuit, I wanted to try other non conventional PCB materials, and this time I tried with acrylic. I kinda like it.. its different…  but not an easy task..  I don’t know how many hours I spent with this..

It was a great disapointment when I saw that only the body spins.. and the boots remained still.

So I have to create another polymorph structure to give some traction to the entire system.


1st test drive

And the final result  :)

I used hotglue to reinforce the card. And this makes a cool accoustic sound coming from the boots  :)

And another quick testdrive :)

Zezinho, the poser

This is Zezinho, a humanoid robot that likes to pose! :)

All the microservo supports where made with the amazing material Polymorph.

For now he is being controlled by 8 analog inputs, each input controls one microservo. In the future (as I hope) he will be controlled by a computer vision system where he will try copy real human poses in real time.
I’m still programming servo control functions and movements presets.


This is the analog inputs setup and a custom servo shield.

I’m using an Arduino Mega because I need more than 6 analog inputs that the regular Arduino boards have and I don’t have the time (or should I say patience) to digg around multiplexers.. I’m very lucky to have the support of InMotion.pt, they sent me the Arduino Mega for the first test drive. Thank you so much Filipe!! ;)

This robot will also be my final project for the course ‘O Som do Pensamento’. It will be an instalation where the user will be able to control his poses with physical controllers. I’ve made a controller box in acrylic and will post photos as soon as I have it with me.

Playing with movements and poses.

Testing movements and different servo speeds.

________________________________________________________________
Update (21.08.09)
Other posts related to Zezinho:

Experimental video made for OddBot robot competition:
http://lab.guilhermemartins.net/zezinho-meets-el-sapatero/

Zezinho, the Poser interactive installation:
http://lab.guilhermemartins.net/zezinho-the-poser-installation/

Filtering servo movements:
http://lab.guilhermemartins.net/filtering-servo-movements/

POP UP LX 09 – Vox Pop from popupcity on Vimeo.

POPUP is an Urban Art event realized by Hugo Israel, there will be installations, performances, sculptures, live music, illustrations and many other cool things. If you are near Lisbon you got to mark this spot on your agenda.

I am participating with Bruno Canas on two interactive video instalations. Will have more details soon ;)

Talkie Walkie

Lusorobotica.com and EmbeddedDreams.com made a challenge to build a robot only with one servo, and this was what I came up with.

I used the sound sensor I’ve done a few days ago and a little paper-boat + a servo and a box and this is the result :)

This how the puppet works:

A hole was digger on a card box, and the micro servo is glued to the box as you can see.
One piece of paper is glued to the servo horn, and this will make the puppet talk movement.
Another piece of paper is glued to the box and it will be fixed and hold the puppet.

This is how the puppet is glued to the paper supports.   ;)