Blog Posts

segunda-feira, 9 de junho de 2014

Uma Lanterna a àgua, uma Plotter barata, Wi-fi reciclado, e uma Bicicleta eléctrica Open-Source.

Divertida de fazer, barata e espectacular de mostrar, eis uma Lanterna que funciona a àgua, ou melhor dizendo, com uma Bateria que aproveita a reacção Redox, entre Cobre, e Zinco, ou Alumínio:



Water Powered Flashlight (v2)
ASCAS
Batteries are too mainstream, let's make Water Powered ones! This is my newer version of my previous flashlight project, this time we are using pennies (literally)! The flashlight works by using water as its electrolytes.
Getting Some Inspiration From My Vacation:
I spent a third of my summer hopping on the pristine islands of Palawan. We wake-up early everyday (4:30am). We rented a boat for the tour and one thing that I've noticed, the boatman used a flashlight to prepare the boat every morning, same for the fishermen who wakes-up early. I stared at the sea for quite some time and I remembered, these men can power their flashlights using the saltwater around them.
Is It Really Powered By Water?
Th internet currently has beer batteries, lemon batteries, potato batteries and water batteries. All of these batteries are powered by the same thing - the Redox reaction between copper and zinc or aluminum. The fluid (or potato) is just the electrolyte, and any solution with dissolved ions - which is basically any solution in water at all - will serve as an electrolyte. Some chemists will react bad to this title, some aren't 











Uma Plotter feita a partir de Sucata, eis o que podem fazer, a até serve também para se treinarem, para fazer depois uma Impressora 3D...



Cheap, nice and weird A4 graph plotter ($25 + some scrap)
mopsiok

Hi there!
At the begining I have to warn you... The solution presented below is quite inefficient and weird. There're some foolish techniques used in this project, e.g. power output stage for the motors or my own PC software. All of these were created mainly for fun and getting skills. It might be quite hard to clone it, but I decided to publish it anyway - just want to share what I made ;). Check the video above to see how my plotter works!

http://www.instructables.com/id/cheap-nice-and-weird-A4-graph-plotter-25-some-scra/










Hoje estamos na onda do Espectáculo, que tal mais esta, re-utilizar velhos Routers Wi-fi para ligarem e  desligarem coisas lá em casa, pela Internet?
Como as vossas Impressoras 3D, por exemplo... 
Está tudo interligado.





Repurpose an old wifi router for the internet-of-things
danasf

The popularity of internet-connected devices built with Arduino shields or single-board computers like the Raspberry Pi and Beaglebone has exploded, but for simple tasks like controlling a relay, reading a sensor, watering your garden or lighting LEDs there's an overlooked (and often free) option: old wifi routers and access points.
Used APs and routers are wasting away in our homes, offices, and landfills, and though they won't match the hardware of a Pi or Beaglebone, they do usually have a few GPIO pins, a serial port, wireless and ethernet connectivity, possibly even a USB host port or Power-over-Ethernet support!

http://www.instructables.com/id/Repurpose-an-old-wifi-router-for-the-internet-of-t/






Ao ver as tais Bicicletas Eléctricas desmontáveis a preços ridículamente altos, mais caras que um Carro em Segunda Mão dos bons, procurei...
E encontrei este louvável esforço, do Site Humble Hacker, uma Bicicleta desmontável Open Souce, que não custa essas fortunas:



The Flying Yankee- A DIY, Foldable E-Bike!

Humble Hacker

Objective-
  • Create an affordable, medium- range (20 Miles), motorized mobility alternative compatible with other transportation modes.
  • In Storage the compact form must fit into-
    1. The trunk of a subcompact car
    2. The baggage hold of an intercity motorcoach
    3. The ruggage rack of a passenger railcar without requiring special accomodations
  • Range must be sufficient for 20 mile one way trip before 6 hour charge

Criteria-

  • Must be affordable
  • Must be simple enough for a moron (i.e. me) to build
  • Must be Modular
  • Must be constructed out of easily accessible components
  • Must be easily customizable

http://humblehackers.wikispaces.com/The+Flying+Yankee-+A+DIY,+Foldable+E-Bike! 





...Ainda aqui estão?
Então aqui vai uma surpresa, como seleccionarem texto, para o copiarem, e colarem esse texto com o botão do meio do rato, como no Ubuntu Linux...
Mas no Windows!
Funcionou, agora mesmo, a escrever isto, no XP:








X11 is better for fingers.
Copy with mouse.
Paste with mouse.
Focus without clicks.
Raise and lower windows.
So called X-Mouse.
One and only... True X-Mouse Gizmo.
Have you ever paid attention to striking difference in the thickness of forefingers in X11/Unix and MS Windows users, respectively? The latter have much more muscular forefingers that often suffer from chronic aches in their joints. They also much more often develop mouse arm, pain in the neck and shoulders, and other troubles known as Repetitive Stress Syndrome and associated with excessive usage of a pointing device. Why?

http://fy.chalmers.se/~appro/nt/TXMouse/


sexta-feira, 6 de junho de 2014

Biga! E imprimir em 3D uma Stranbeest, mais um Braço Artificial Open Source, e uma Bancada bacana

Ora aqui está uma óptima solução para todo o Engenhocas/Sucateiro que quer rondar a Vizinhança, à cata de Tralha para desmontar...
Um Reboque Articulado para a vossa Bicicleta!
E não só para Carga, também se pode ali pôr a roda da frente de OUTRAS Bicicletas, e ir buscar namoradas e amigos à Estação dos Comboios, por exemplo, e vêem todos de Bicla!
De notar também, a excelente apresentação gráfica, das Imagens estilo Desenho à linha, em Google Sketchup, sem dúvida...



Biga, the bike trailer
andrea biffi

In support of a bicycle workshop I have decided with my friends to build a trailer to carry the tools around the city.
We were not skilled in welding iron frames, but that didn't stop us, and with some advice we succeeded in building a nice, strong, and effective trailer, which remembers me an ancient Roman "biga".

http://www.instructables.com/id/biga-the-bike-trailer/








Querem IMPRESSIONAR? Eis como um Engenhocas, ou uma Fablab qualquer, podem imprimir em 3D, algo que chama a atenção a míudos e graúdos! 
É uma Strtandbeest, aquelas Gigajogas do incrível Theo Jansen , mas uma que podem imprimir em 3D!
É fantástico, este Instructable, e ainda, é uma Lição em como implementar as vossas ideias em 3D!



3d Printed Gears: Strandbeest Turbine
er1c3dp

I've seen a lot of amazing 3d printed things, and have often found myself trying to figure out how they were designed and modelled, how they went from being an awesome idea to becoming an actual physical 3d printed object. I believe gaining such an understanding leads to a deeper appreciation of the object, as well as the ability to make or repair that object myself.
Using my Strandbeest turbine kit as an example, I'll illustrate the general process I went through to design it, as well as some of the specifics of modelling the 3d printed gears that made this design work.
Following the steps in this Instructable, you will be able to make your own Strandbeest turbine kit, and more importantly, get a general idea of the design process which you can adopt for your own 3d printed projects.






Isto é muito meritório e louvável, e sobretudo duma enorme utilidade para quem mais precisa... Um Braço Artificial, de iniciativa dos nosso amigos Brasileiros, Saravá Brasil, que se pode construír em qualquer parte, tudo Open Source, o que quer dizer, muito mais barato, atenção, Àfrica, tão martirizada por Guerras e Minas!


Robotic Arm(Inmoov) with Cortex M3(Brazilian Open Hardware)
wcr

Após ver o "Inmoov" eu tive muita vontade de montar um, mas como base para futuramente desenhar meu próprio braço robótico, unindo um pouco dos meus conhecimentos com artes plásticas para deixar cada vez mais "humano" o braço, pretendendo com o tempo diminuir o tamanho com o intuito de servir como prótese para pessoas que necessitam.

O controle é feito com o Cortex M3, BROH(Brazilian Open Hardware), a plataforma foi projetada pelo Prof.Alberto Noboru Myadaira, meu professor na UTFPR de Medianeira, e utilizando Bluetooth.
Robotic Arm (Inmoov) controlled by Cortex M3(BROH)
After seeing the "Inmoov" I had long wanted to ride one, but as a basis for future design my own robotic arm, joining some of my knowledge with visual arts to let more and more "human" arm, intending to decrease with time size in order to serve as a prosthesis for people who require.
The control is done with the Cortex M3, Broh (British Open Hardware), the platform was designed by Noboru Prof.Alberto Myadaira, my teacher in UTFPR of Mediatrix, and using Bluetooth.




  



E para o Bicho Carpinteiro, isto é, os que têem de estar sempre a fazer alguma coisa, ou para toda a malta que quer ter uma Bancada de Trabalho de jeito, eis uma bacana duma Bancada, que podem fazer, e também é um gosto de se admirar!




Un petit établi
Toutenbois
Après le lit, la chaise haute, le lit cabane, le tableau noir, le maillet... et je doit en oublier, je lui ai fait un vrai établi, comme papa... sauf que papa il n'a pas de vrai établi... encore un projet !
Le bois c'est du pin de coffrage deux planches de 40mm pour environ 25€ et 30€ de tige filetée ( mais de quoi faire 3 presses) un budget très raisonnable et deux jours de travail




 

quarta-feira, 4 de junho de 2014

Mais um Portuga nos Instructables! E a Oficina Poeiras, separar Metais, e mais Moldagem

Já temos mais um Português nos Instructables, por isso, cá vai um Instructable dele, bem fácil, para fazerem o vosso próprio Espectroscópio, por menos de 1€:


DIY spectroscope under 1€
tgferreira184


This is my homemade spectroscope that I built for less than 1 €. I needed one becouse I am studying spectes, and for a lab research I needed to build one, So I also made this instructable for you to build your own diy spectroscope.








E mais um Blogue Português sobre Faça-Você-Mesmo, este da autoria de Leonor Poeiras, com dicas sobre projectos de Bricolagem, Actividades de Tempos Livres, Trabalhos Manuais, e muito mais.
Vão ver:


Bem vindos à Oficina Poeiras.

Diariamente, uma ideia partilhada. Qualquer coisa que possa ser feito por ti e pelas tuas mãos. Criatividade gera momentos especiais; criar qualquer coisa, por mais simples e imperfeita que seja, dá-nos um prazer e um orgulho diferentes. Para além de nos tornar cada vez melhores na arte de construir, fazer acontecer, criar. Dar largas à imaginação e encontrar as ferramentas certas para fazer acontecer o que desejamos, é o que pretendo. Neste blog cabem a bricolagem, arts&crafts, vida no campo, carpintaria, truques de cosmética, actividades de tempos livres, alimentação saudável, natureza, reciclagem, música, amigos, crianças…  aqui cabe tudo e também cabe um bocadinho da televisão. Este é o meu modo de vida!
Ideias para aproveitarmos melhor tudo isto que temos à nossa volta! Se eu consigo, tu consegues. Estamos juntos?
Like it ? ❤︎ Do it Yourself !
Leonor Poeiras
http://oficinapoeiras.com/








Mais um Projecto divertido da KJMagnetics, como separar Metais, com Ímanes, não só separar Metais Ferrosos, de Não-Ferrosos, e até Alumínio, de outros Materiais!



More About Magnetic Separation

Last month, we wrote about how magnets are assembled for magnetic separation applications – attracting iron, steel, or other ferromagnetic bits to get contaminants out of other materials. It was a fun example of some specific ways that magnets are selected and assembled for this task.
Still, some of you might be thinking, “Big deal, iron sticks to magnets. We knew that.” We have to agree that’s true.

What if there was a way to use magnets to separate metals that are NOT attracted to magnets? If we could separate aluminum cans (which magnets don’t stick to) from other, non-metallic trash, would that be amazing?
Read on to learn more about how this is really done!




 




E como fazer um Filme em que cai uma Chave Francesa, em cima dum Actor, sem riscos?
( sim, é assim que ESTAS Chaves se chamam, não as Chaves Inglesas, que são diferentes)...
Façam um ADEREÇO, que pareça uma Chave, mas que pode ser feito em qualquer Material, por meio de mais esta Técnica de Moldagem, desta vez, por Silicone.
Também bom para Filmes Históricos, de Guerra e Policiais, mas vejam bem a Legislatura correspondente, antes de fazerem Réplicas de Palco...
Não andem, por exemplo, com uma Réplica de Bacamante, no meio da Rua, depois de fazerem um Filme de Piratas!
LOL





Silicone Box Mold For Prop Making
Joe Sargent
Silicone box molds are a fairly simple and very effective way to mold simply shaped objects. I molded a pipe wrench, but you can mold many things (but not everything, which I will get to later) with this style mold. Very soon I will be posting the second half of this process, which is casting a part from the mold. I will be making a flexible foam wrench that looks exactly like the real thing, but that you can hit someone over the head with. Just creating a mold takes many steps, each of which is incredibly important, so just focusing on that should help maintain clarity. This style mold is best used with a simple, fairly uniform shape, with very little or no undercuts.

http://www.instructables.com/id/Silicone-Box-Mold-For-Prop-Making/





segunda-feira, 2 de junho de 2014

Impressoras 3D por catálogo, em Português! E outra Impressora 3D, mais uma Fresa 3D, ambas Faça-você-mesmo,

Sim, podem finalmente comprar em Português, as vossas Impressoras 3D, por catálogo..
São 8 Impressoras diferentes, das marcas Leapfrog, Printrbot, Ultimaker, e Makerbot, e com preços que vão de 545 a 2340 Euros:
 

Têem também à venda, esta simpática máquina CNC de Corte a Laser, por 5490 Euros:

...E também vendem artigos cortados a Laser, e outros, Impressos em 3D, como estas incríveis réplicas dos Corações em Filigrana feitos no Norte de Portugal:
  

Por isso, vão à Pipstore, e vejam lá de tudo um pouco:
Sobre Nós
 
Pipstore® is an online and garden store providing a wide range of design useful products for people who care about values like humanity, sustainability, tradition & identity. From an orange & lemon tree we have in our headquarters, we want to highlight the benefits of the contrasts about, for instances, craftsmanship & new technologies (3D Printing), design & engineering, stores & open air gardens, vintage & art. The concept includes products either with tradition or that have one of the following features: environmentally sustainable, customer-centric, multi-functional, reusable, inclusive or with cool & useful technology. Pipstore aims showing & sharing the best creative people and young brands from all over the word, which made quality design &  useful products. Pipstore values described above are the core of our initiatives and therefore 1% of te turnover will be spent in social responsibility products.










Se não estão para gastar dinbheiro, ou têem muita Sucata Tech em casa, a pedir uso, que tal, fazerem mais esta Impressora 3D feita em casa?
 


Poor Man's 3D Printer
Gelstronic

My goal was to build a cheap and inexpensive 3D Printer for less than 100 Dollar/Euro

What are the features of the Poor Man's 3D Printer ?


- Fused deposition modeling ABS/PLA
- Heat bed
- use of open source firmware, modified version of Tonokip
- free host software, Repetier-Host
- bowden-extruder
- max. build size 40mm x 40mm x 40mm
- resolution 0.08mm









E acaba-se por hoje esta parada de coisas boas para o Fabiing, com esta Fresa CNC, também feita em vossas casas!





Building your own CNC router/milling machine
Trochilidesign

Already at the age of 12 I was dreaming of making a machine which could make things! A machine which would give me the opportunity to create products for in and around the house. Two years later I stumbled ont the words 'Computer Numerical Control' or more specifically the CNC milling machine. After I found out people were able to build one themselves in their own shed, I knew it! I had to build one, I yearned to have it!!
...
This Instructable will show you how I built my CNC milling machine. I know a lot of CNC dreamers do not have the knowledge or tools to build a full metal machine. I still think and hope this Instructable inspires you to make your own machine. I include all of the necessary steps I went through in designing and building this CNC milling machine. All of the drawings I used to build my machine will be available.

http://www.instructables.com/id/Building-your-own-CNC-milling-machine/







sábado, 31 de maio de 2014

Mais uma Impressora 3D barata! E um Gerador de Biomassa para qualquer um

Qualquer dia, compram-se nos Supermenrcados, e nas lojas do Chinês...
Uma Impressora 3D por 249 Dólares, na Inddiegogo, e por isso já ultrapassou a quantia-alvo!


New Matter MOD-t: a 3D printer for everyone
New Matter makes 3D printing way easy. Low price. Wireless connectivity. And an online store full of cool designs that you can buy, customize, print, and share.

What if you could send a physical object to a friend like a text message? What if you could subscribe to a series of objects like you do with a podcast? What if adjusting a 3D model was as easy as Instagramming a photo?
Yeah, we thought that would be cool too. That’s why we created New Matter.








E aqui está um Gerador de Biomassa que pode fornecer Electricidade para localidades de todo o Mundo, cabe em cima duma Palete, e funciona a Biomassa com um mínimo de Manutenção.
Mais pequeno, e fazia-se um Carro a Biomassa!






Could this little-known biomass generator start an energy revolution?
Eric Mack

It could be the most important portable power plant you've never heard of. It's called the "Power Pallet" and it is essentially a combined biomass refinery and generator that fits on a single pallet and can kick out up to 20 kilowatts of electricity.

I came across the shiny yet unassuming contraption that looks like ... well, like a miniature refinery attached to a miniature power plant, while roaming the back lot at the Bay Area Maker Faire where many of the bizarre or vaguely steampunk Burning Man industrial art creations were also on display.






quinta-feira, 29 de maio de 2014

Foguetes nas Makerbots? E Tutoriais do FreeCad, e façam o vosso Robot de Tele-presença

Ora, se estes bacanos podem fazer Plásticos que propulsinam Foguetes, talvez um dia as Impressoras 3D caseiras poderão ter Bobines desse Material, e poder-se-há fabricar um Foguete, com propulsão e tudo!!!



SpaceShipTwo to be fueled by thermoset plastic similar to nylon
David Szondy

As the still-to-be-announced date of the first commercial flight of Virgin Galactic’s SpaceShipTwo approaches, more and more of the technology involved is getting nailed down. A case in point is the company's announcement that it has decided which fuel will be used in the first passenger-carrying flights of the suborbital spacecraft. The solid fuel grains that will fuel the world’s largest operational hybrid rocket will be a thermoset plastic similar to nylon.



 




O Programa FreeCad, que vos permite fazer DISTO...

...Pode-vos também fazer previsões de Movimento, para simular Mecanismos, o que é bastante bom, para um Programa Grátis...
Está tudo sobre como o fazer, neste Turorial:







Tutorials for freeCAD

In this section, we have tutorials, using which you can learn faster and can model and simulate your own mechanisms with ease.
The best place to start freeCAD is Quick Start Tutorial video with sound: Four Bar Mechanism.

http://www.ar-cad.com/freecad/tutorials.html








 ...E uma Fézada para as Fablabs, Dica da fantástica AppNeta,  eis como fazerem os vossos próprios Robots de Tele-Presença!




Introducing PETBOT: A node.js Telepresence Robot

Ari Rizzitano

Recently we added a new member to our engineering team. This is PETBOT, aka Providence Engineering Telepresence roBOT.
It’s a telepresence robot I built for our office, consisting of an iPad mounted on a lightweight chassis powered by an RC car. To operate it, you open up a video chat session with the iPad, then control the robot from your browser using the web interface.
PETBOT can see, move, talk, and, like any startup employee, play foosball. Or at least try to.