Protótipos pró Povo, parte 5

Uma maneira simples, e quase Instantânea, de fazerem peças para as vossas Engenghocas, é  no que eu estou a pensar, agora.

Já vos tinha falado desta Pasta de Moldagem, da Inventables...

Mas, o que lá pôr, no Molde? 

Andei às voltas com o problema, mas estava já cá em casa, a solução...

A fiel Pistola de Cola!

Eis os primeiros resultados, e não aqueci o Molde, senão, a aderência seria mais perfeita, mas já assim, a Roda Dentada funciona!

Aquecida, sai logo assim, do Molde, sem necessidade de emendas...

E o nosso amigo Fernando Lopes, vem-nos lembrar, que até há Bastões de Cola com Bastões dum Produto mais rígido, por isso, vai de tentar, Rapaziada!

Novidades da FablabEDP

No FablabEDP... 

Oogoo!

Silicone e Maizena, mais uns pózinhos, e foi preciso ver para crer, resulta num Molde com as características da Borracha, e com uma fidelidade incrível, podem ver, no meio deste molde, o Logotipo do Ipod, apesar do tal Logo ter uma profundidade mínima, pois lá apereceu, sem tirar nem pôr!

Por isso, está aqui, outra vez, um Link para o melhor Instructable que eu já vi sobre o Oogoo, que podem crer, sou agora testemunha em primeira mão, é um Material fenomenal!

How To Make Your Own Sugru Substitute

mikey77 

I call it Oogoo, an inexpensive silicone clay that is easily made. It can be used as an excellent substitute for Sugru. It can be hand molded or cast in forms. Or, it can be used as a casting silicone. It can be colored any color from white to black. It can also be made translucent to allow diffused light to shine through. It can even be painted on in thin layers. It has very good adhesive qualities and will stick to itself, glass, fabric, paper, wood, and some plastics and metals.

 http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/

Mas não fica por aqui, também lá vi esta técnica de endurecer a Esferovite, ou Isopor, no Brasil, com Biscuit, ou em Inglês, Cold Porcelain, é lá usada para Moldes, mas podem-se assim fabricar peças num Material facílimo de trabalhar, como a tal Esferiovite, e depois, dar-lhe uma rigidez estrutural e uma sumperfície lisa o suficiente para peças de demonstração de conceitos...

E será que tenho um Link dum instructable, para fazerem a Mistura com materiais caseiros?
Claro que sim! 

 

Cold Porcelain Clay Recipe

Gomi Romi

I was wondering about polymer clay substitutes and decided to experiment with homemade air-dry clays.

This recipes is very fast and easy to make, not to mention inexpensive. There's no need to bake either.

The things that can be modelled from cold porcelain clays are incredible. Its possible to sculpt finer details than polymer clays.  Objects dry to a light-weight, stone like texture. Try it and see where your creativity takes you.

http://www.instructables.com/id/How-to-make-Cold-Porcelain-Clay-air-dry-modelling/

...Materiais inesperados e porreiros, ainda no FablabEDP, eis um Placa que eles lá usam para trabalhar na Fresa CNC, Placas de Fenólico, das que se vêem nas diviśorias dos WCs, dão um material bem rijo, que servirá para muita Engenhoca, eis o dito cujo, já trabalhado:

E mais esta peça, que serve para travar o cerne dum Motor de Máquina de Lavar:

Eis a Gigajoga, bastante bem bolada:

...E já feita, reparem na peça, pronta a ser montada no lugar:

Onde se encontram essas Placas de Fenólico?
Eis um Link:

Cabines e Divisórias Fenólicas de WC.

Cabines sanitárias, painéis fixos e móveis, de fecho e manobra em placas de resinas fenólicas termoendurecidas de 10 mm, estrutura de apoio superior em perfil de alumínio anodizado, ferragens de fixação, dobradiças e fechadura livre-ocupado em aço inox, inclusos. Sistema para fixação em paredes de alvenaria. 

http://www.mestriapt.com/pt/articles/cabines-fenolicas/cabines-fenolicas

 

Injecto-bot

Depois de pensar nas Máquinas de Moldes de Injecção de ontem, estou convencido que nada impede algum Geek de montar uma Máquina Automática de Moldes de Injecção para Fabbing.

Quem consegue fazer com que uma Cabeça de Impressão se mova em 3 eixos, e até, criar uma correia que faz com que o Makerbot fabrique uns objectos atrás dos outros, automáticamente... De certeza que, quem faz isso, automatiza o que vimos no Vídeo de ontem.

Ainda mais com estes Moldes feitos em Epoxy, que qualquer positivo feito por Makerbot, ou qualquer objecto, mesmo, pode servir para criar:

EPOXY MOLDS

Epoxy molds provide a low cost way for you to convert your hand-made models and prototypes into real plastic parts. You can make your original model from wood, metal, carving wax, random pieces of plastic glued together, or whatever combination of materials it takes to create the shape you want. That model can then be used to make the impression in your epoxy mold.

http://www.injectionmolder.net/moldmaking.htm

Nardos... Mãos à obra!

E para apenas uns poucos de Objectos, outros Materiais que o Plástico, ou principalmente...

Fazer Protótipos impressionantes, que parecem já fabricados em série, em Fábricas a sério...

Vejam isto, é um Exemplo passo-a-passo duma Empresa a criar um Protótipo impecável, e vão ver, as imagens aumentam, ao Link:

Moen Prototype Shop Uses Smooth-On Products To Spark Development 

Moen®, Inc. (based in Olmstead, OH) is one of the world’s leading manufacturers of bath and shower fixtures. Bringing a new fixture concept to market is a group effort and begins at Moen’s design center. Development involves several departments including Moen’s prototype team headed by Mr. Ed Solensky who is an experienced mold maker and caster.

Mr. Solensky uses the full spectrum of Smooth-On tin and platinum-based silicone rubbers as well as Smooth-Cast and TASK® plastics to develop and refine proposed designs. 

The following photo sequence begins with an original SLA model being extracted from a two piece Sorta Clear® 40 silicone rubber mold. Sorta Clear® is a high-tear platinum silicone used by many professional prototype designers because it offers the advantage of letting you see your model as you are cutting the rubber and minimizing damage to the model.

TASK® 2 urethane plastic is a premium urethane resin that offers higher performance properties vs. general purpose casting resins. The resin is mixed and injected into the mold with a syringe to produce a precise part that will be finished and presented for pre-production preparations to ultimately be sold as the Moen® “Icon Pulse” shower head.

http://www.smooth-on.com/gallery.php?galleryid=182

...E não é que os laboriosos Alemães já fabricam peças para o RepRap, usando estes Moldes?

Self-Replicating Machines
A replicating rapid prototyper (RepRap) is a 3D printer made out of parts that the machine itself can print. Although today's RepRaps still require a few non-printed parts (called vitamins) to help out, the bulk of the hardware needed to assemble a RepRap can be made from extruded thermoplastics like ABS or PLA. The Mendel is the second generation RepRap machine, and a popular variant–the Prusa Mendel–has been called the Ford Model T of 3D printers. The Prusa is made to be modified and as such has spawned a number of variants in the hobby 3D printing community.

http://www.smooth-on.com/a105/RepRap-3D-Printer-Parts-Made-with-Smooth-Cast%3D-ONYX%3D/article_info.html

ESPERA AÍ...

Estes Moldes, ver Vídeo abaixo, também podem servir para criar Objectos em Cera, certo?

Então, porque não criar moldes em Cera, com duas partes adicionais, para a entrada e a saída do Metal...

Depois, colocar em Gesso, que depois de secar, e de se derreter a Cera, fica com a forma da peça, em negativo, sim, um vazio...

Depois, é só derreter Alumínio, derramar por um dos Orifícios, e depois de solidificar, e de se partir o Gesso, têem a peça que quizerem... EM METAL!

Peças em Metal, quantas queiram, numa só tarde?
É bom! 

Plástico, Papel com plástico, CNC, e Vento

Para quem pensa que o Plástico não serve para os seus Protótipos, que é muito frágil, eis este exemplo:

How to make a Polymer AR-15 Lower at Home

Sebastian and a friend have described in detail their latest successful attempt at making an AR-15 lower at home. They used a CNC mill to machine the lower out of a block of Delrin.

Neither of the pair were machinists. Anyone with enough motivation can learn how to make an AR-15 at home. If you can't afford a CNC mill, you could always build one yourself.

http://networkedblogs.com/ujlbk

Voltando aos Materiais e ao que se vai inventando, eis um Material híbrido, Papel-Plástico, será que é assim que se vai finalmente produzir em 3D, sem gastar uma Fortuna?

The shell of your next device could be made of paper ... partly

By Ben Coxworth

It's possible that your next laptop computer could contain parts of your present-day notebook ... not your notebook computer, mind you, but your actual notebook. At least, it will if China's PEGA Design and Engineering has anything to say about it. The company's new Paper PP Alloy, made from a combination of recycled paper and polypropylene, is intended for use in the shells of consumer electronic devices.

According to PEGA, not only is the material strong and flexible, but it is also recyclable and reusable, and it's inexpensive to produce. Additionally, because it can be injection molded, it could be used in existing production facilities without having to make extensive changes.

http://www.gizmag.com/paper-pp-alloy-electronics-shells/21569/

E que tal uma Turbina que não se tem de empoleirar a 20 Metros, em torres ridículas, nem faz um barulhão?

Versatile Wind Harvester breaks from traditional turbine design


By Paul Ridden

From huge kites to sea-bound flywheels and roof-top installations to tree-like art creations, we've seen many different approaches to capturing energy from the wind. One design, though, reigns supreme - the tri-blade turbine tower. It's not exactly a trouble-free life at the top and there are those who do not look upon these monsters favorably, most often complaining about the noise and the not so picturesque view. With support from Nottingham Trent University's Future Factory project, Heath Evdemon is currently building a new type of wind turbine called the Wind Harvester that's claimed to be virtually silent, doesn't need to loom high over the landscape and can operate in a variety of wind conditions.

http://www.gizmag.com/wind-harvester-reciprocating-motion-wind-turbine/21565/

E que tal, um carro novo, em que estacionam 3 no espaço dos actuais?

Hiriko - the fold-up electric two-seater set for 2013

By James Holloway

That the Hiriko electric car prototype is small is obvious to anyone. Perhaps less obvious is that, in parking, the Hiriko becomes even smaller. Thanks to a folding mechanism that tucks the rear of the car in under the chassis, the Hiriko's length can be reduced to the width of an ordinary automobile. The result? It's possible to park three Hirikos in a single parking bay.

http://www.gizmag.com/hiriko-folding-electric-car/21506/

Para concluír, ainda mais um Vídeo sobre Maquinação CNC:

E como sou um adepto de FAZER ALGO, em vez de se andar a chorar, e ficar-se num Bem-Bom que sufoca, eis que apareceu uma E-revista grátis, de auto-aperfeiçoamento, vejam se gostam:

http://issuu.com/progredir/docs/revista_progredir_002?mode=window&backgroundColor=%23222222

Mindsets marca pontos

A Mindsets vem carregadinha de coisas boas...

Eis um incrível plástico, fácilmente deformável a frio, e que volta à forma original, quando imerso em àgua quente:

Cold Forming Plastic (CFP)
This plastic looks just like acrylic but has a toughness approaching polycarbonate and can be permanently formed into shape without heating – thus avoiding the use of ovens, strip heaters etc. It is also a shape-memory polymer since it will return to its original flat form on application of moderate heat – e.g., immersion in very hot water. To form the sheet, you can simply bend it by hand or using sheet metal folding equipment. (Alternatively, the sheet can be thermo-formed using conventional heating methods).
http://www.mindsetsonline.co.uk/product_info.php?products_id=1009730

E o que dizer deste Material que funciona pelo Efeito Quântico de Túnel?

Sendo normalmente isolante, passa a condutor, quando comprimido, torcido, ou esticado! 

Porreiro para toda a espécie de interruptores, sensores de peso, sei lá que mais!

QTC Pill (Quantum Tunnelling composite)

Quantum tunnelling composite is a flexible polymer that exhibits extraordinary electrical properties. In its normal state it is a perfect insulator, but when compressed it becomes a more or less perfect conductor and able to pass very high currents. Polymers loaded with carbon are, at best, only partially conductive. In QTC, the change from non-conductor to conductor is dramatic, and a tiny piece measuring 4mm square and 1.5mm thick can pass a current of up to 10 amps when squeezed!

http://www.mindsetsonline.co.uk/product_info.php?products_id=1144

Para a malta da Fabricação, eis uma folha de Alumínio Adonizado, que poderá ser cortada a Laser:

Anodised Aluminium Sheet

1 mm thick half-hard aluminium sheets with a minimum useable area of 290mm x 290 mm coloured both sides by high quality anodising. (Supplied slightly larger to allow for burning on edges). These brightly coloured sheets can be cut, punched, folded and generally post-formed without damage. (Uniform micro-cracking along a fold does not spoil appearance). This pre-coloured material is stunning in appearance and gives an immediate quality uplift to any application. (Quote colour - black, red, purple, blue).

http://www.mindsetsonline.co.uk/product_info.php?products_id=532

... E a bela da Folha de Policarbonato, resistente que se farta, para toda a espécie de Engenhocas, veículos, etc.

Polycarbonate Sheet

This optically clear material is distinctive amongst sheet plastics because of its supreme impact resistance and toughness – and is used extensively in applications including:

- architectural glazing
- interior fittings
- safety guarding
- riot shields
- optical & medical instruments

It is not commonly available in smaller sheets and so we hope that the clear optical grade now supplied by TR will help to satisfy needs for small-scale prototyping. Despite its toughness and impact resistance, it can be guillotined, sawn, machined, drilled and thermo-formed very easily. 

http://www.mindsetsonline.co.uk/product_info.php?products_id=1009380

Por isso, vão lá que em cada um destes exemplos, aparecem em rodapé mais coisas parecidas, ou coisas que quem comprou estas, comprou também, por isso, passam um bom tempo, de boca aberta...

http://www.mindsetsonline.co.uk/

Notícias

Uma Nave Espacial propulsionada a...  Àgua!

Water-Powered Spaceship Could Make Mars Trip on the Cheap

Mike Wall, SPACE.com Senior Writer

Spaceships powered primarily by water could open up the solar system to exploration, making flights to Mars and other far-flung locales far cheaper, a recent study has found.
A journey to Mars and back in a water-fueled vehicle could cost as little as one space shuttle launch costs today, researchers said. And the idea is to keep these "space coaches" in orbit between trips, so their relative value would grow over time, as the vehicles reduce the need for expensive one-off missions that launch from Earth.
The water-powered space coach is just a concept at the moment, but it could become a reality soon enough, researchers said.

http://www.space.com/11230-water-powered-spaceship-mars-solar-system.html

O incrível Robô-Minhoca:

Crawling, squirming modular iMobot designed to advance robotics

By Ben Coxworth

Building a robot, it's probably safe to assume, is a daunting project. It would doubtless be considerably easier if designers didn't have to build everything from scratch, but could instead use pre-built modules. That's where the iMobot comes into play. Designed by University of California, Davis alumnus Graham Ryland and professor of mechanical and aerospace engineering Harry Cheng, the modular iMobot is a small robot in its own right, but could also be used as part of a larger robotic system.

http://www.gizmag.com/imobot-designed-to-advance-robotics/18233/




Um Circuito Electrónico em Plástico:

The First Plastic Computer Processor
By Tom Simonite 

Silicon may underpin the computers that surround us, but the rigid inflexibility of the semiconductor means it cannot reach everywhere. The first computer processor and memory chips made out of plastic semiconductors suggest that, someday, nowhere will be out of bounds for computer power.

Researchers in Europe used 4,000 plastic, or organic, transistors to create the plastic microprocessor, which measures roughly two centimeters square and is built on top of flexible plastic foil. "Compared to using silicon, this has the advantage of lower price and that it can be flexible," says Jan Genoe at the IMEC nanotechnology center in Leuven, Belgium. Genoe and IMEC colleagues worked with researchers at the TNO research organization and display company Polymer Vision, both in the Netherlands.

http://www.technologyreview.com/computing/37126/?p1=A2

...E os Livros de Fibonacci, em Leilão:

Historic 15th century Fibonacci manuscript up for auction

By Bridget Borgobello

A collection of revered mathematical works will soon be put to auction in New York, including significant pieces of the Liber Abaci or Book of Calculation by Fibonacci. Esteemed as one of the most brilliant mathematicians in Western history, Leonardo Pisano Bigollo (Fibonacci) translated Arabic numerals, whilst explaining the superiority of these numerals and the importance of zero. Above all it was Fibonacci's work that has helped modern day mathematicians find breakthroughs in mathematical equations, whilst also defining sequences used for computer programming and the financial markets.
Fibonacci is of course well known for bringing the Fibonacci code to the West (first understood by Indian mathematicians in the 6th century). Each number in the code simply represents the sum of the previous two numbers, starting with 0 and 1 (eg. 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987 ... ).

http://www.gizmag.com/historic-15th-century-fibonacci-manuscript-up-for-auction/18210/

2D, 3D, tudo da mesma loja

Já podem mandar fazer de tudo, no mesmo Site, na Ponoko, Corte Laser de placas de vários materiais E AGORA, tambem, Impressão 3D, em vários materiais!

Da Página Facebook da Ponoko:

announcing the Ponoko + CloudFab partnership

Ponoko is bringing the power of product design to the masses. We began in 2007 by offering laser-cutting and earlier this year added electronics to the mix. Today we are elated to announce that the new Ponoko Personal Factory 4 offers 3D printing!!

CloudFab has joined our global digital making network, giving Ponoko customers the ability to create 3D printed designs. All with no set up fees, no minimum orders, and a free one year replacement policy.

We’ve added five new 3D printable materials to our materials catalog including durable white plastic, superfine plastic, rainbow color plastic, stainless steel, and gold plated stainless steel.

Vão lá ver:

http://www.ponoko.com/

Mais uma firma de Fabricação em 3D, a partir de ficheiros

 Querem mandar fazer algo em plástico?

Agora, mais perto, em França, Sculpteo, mandem o Ficheiro 3D, e eles fabricam. O preço é calculado online, enquanto vocês encomendam, com desconto segundo a quantidade.

 Até fazem um Boneco das vosssas Fotos!

Portanto, vão lá é neste Link:

http://www.sculpteo.com/en/

Instructables

O primeiro e mais importante Instructable, como fazer Pasta de Molde de Silicone, mas BARATA...

Pode-se colorir, e tudo, uma maravilha!

http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/



Uma cama faça-você-mesmo:

http://www.instructables.com/id/DIY-Platform-Bed-with-Floating-Nightstands/




...E para que não vos falte nada, uma caixa pró Tareco, ventilada e tudo para os vossos gatos irem à cas-de-banho!

http://www.instructables.com/id/Built-in-self-venting-Cat-Box/

Imprimir um Rolamento!

Se tiverem dinheiro para isto, 1500 Dólares, e o Vídeo não vos compelir a comprar uma maravilha destas, não sei...

newbox.TV 

http://pp3dp.com/

Mais uma Impressora a 3D

UP! a nova Impressora 3D.

Esta, vem já montada, só 5 ou 6 parafusos, e já está.
Algumas palavras, do Facebook da Ponoko:

The complete story of Whystler’s adventure with the UP! printer is below (along with more pictures). It’s well worth the read, but I’ve also chosen a few key points.
Summary:

• It’s a real 3D printer. The company website may look a little sketchy, but the printer exists and it really works. (yay!)
• It’s basically plug-and-play with setup taking less than an hour.
• It prints in 0.2-0.4mm layers depending on the desired detail and speed.
• The detail is at least as good as a well-tuned Makerbot or Reprap, but don’t expect the perfectly smooth surface of a really high-end printer.
• Read the entire manual before setting up the printer.
• The PP3DP is selling the UP! for $1500 for the first 100 sold, then the price goes up to $3000. Here’s a pricing guide for some DIY printers.

A maquineta a funcionar:

newbox.TV

A história completa:

http://www.facebook.com/photo.php?pid=122689&fbid=119182658133806&id=100001262160214&ref=nf#!/notes/ponoko/review-of-the-up-3d-printer/427576357546

O Site da Empresa onde podem comprar:

http://pp3dp.com/

Mais peças

Mais uma peça para um possível jogo de construcção, 3 peças fazem um eixo:

Ponoko, e Gelados!

Lembrei-me agora daqueles Palitos de Gelados que davam para construír coisas, eram assim, mais ou menos:

Agora, com o Ponoko, podem usar esse conceito, e expandi-lo com placas, esquinas, curvas, aros, rodas, e sei lá o que mais!

Com só uns determinados furos, com todos, de todas as formas de que precisarem....

É bom!

Instructables!

Como dobrar Tubos em PVC, MUITO importante para toda a espécie de Protótipos:

http://www.instructables.com/id/Bend-PVC-Pipe/

Uma ponte de modilhão, para a vossa Quinta:

http://www.instructables.com/id/A-cantilevered-foot-bridge-out-of-logs-with-a-hu/

E por último, como costurar um Circuito:

http://www.instructables.com/id/How-to-sew-an-electronic-circuit/


.

Uma consola Nintendo!

Para uns momentos de Nostalgia, faça você mesmo a sua Máquina de Jogos!


http://www.instructables.com/id/How-to-build-a-Nintendo-arcade/

...Ou um Frisbee em cartolina!

http://www.instructables.com/id/Cardboard-Frisbee-1/

Mais Instructables!

Um sistema de moldes por vácuo:

http://www.instructables.com/id/30-Second-Demonstration-of-the-CIR-Sand-Casting-Sy/

Atenção Algarvios, uma fogueira de Pátio com ar forçado:

http://www.instructables.com/id/Air-pumped-up-patio-fire-place/


Pessoal das Raves!
Um sistema de fumos, e de temperatura regulável!

http://www.instructables.com/id/Homebrew-Cold-Smoke-Generator/

Uma Fonte de Alimentação inteligente:

http://www.instructables.com/id/Smart-MasterSlave-Power-Strip-for-your-PC-mod-/

E para terminar, um Candeeiro de pedra!

http://www.instructables.com/id/Stone-tile-lamp/