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Mostrar mensagens com a etiqueta fixação magnética. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta fixação magnética. Mostrar todas as mensagens

domingo, 23 de setembro de 2012

Lamello, o Parafuso Mágico, o Caiáque desdobrável, e Instructables para tudo

Isto vai ser usado para muito mais que Mobiliário, como em Máquinas com peças que não se alcançam com nenhuma outra ferramenta...



Lamello Invis Mx

Invis is a totally invisible connector that can be taken apart and reconnected to give a very strong locking joint. Working like a dowel in 2 parts and not requiring any clamping it is suitable for many joints and will overcome design problems where components need to be joined then disassembled and reassembled or where it is just almost impossible to clamp. All that is required is one exposed surface, this would also be ideal for joining worktops. The Invis 12mm dowel is in 2 parts with a central male and female thread and a coarse outer thread which is screwed into a pre bored hole, bring the two components together and using the special ‘MiniMag’ box in a power drill, laying this horizontal to the joint and forward spin to tighten the connector together resulting in a solid joint.
http://www.axminster.co.uk/lamello-lamello-invis-mx-starter-kit-with-20-connectors-prod838984/





Um Caiáque desdobrável, que se leva no Comboio... Ora assim, as Férias e Fins-de-Semana na Terrinha, tornam-se muito mais agradáveis!!!




Oru kayak folds up like origami

By Ben Coxworth

We’ve already featured a folding rowboat and a folding canoe, so why not a folding kayak? Well, that’s what the Oru is ... and unlike existing folding kayaks that incorporate frames and skins that have to be assembled, it consists almost entirely of one piece of folded corrugated plastic.
The Oru is the creation of San Francisco designer Anton Willis.
Described as “the world's first origami kayak,” it can be folded down into the form of a suitcase-sized box. That, needless to say, would make it much easier than a regular kayak to store in an apartment, stick in a car, check at an airport, or carry through the wilderness.







Sempre à volta com o Rapberry Pi, o Computador numa caixinha, eis como acelerar o bicho, atenção ao sobre-aquecimento...

Overclock your Raspberry Pi - Squeeze more power out of your $35 computer

aeszok

After recently purchasing my Raspberry Pi, I found many of the Linux distros to be slow and often sluggish. Unless you are using it as a pure media centre, you'll definitely want to try this method to make browsing the web and typing up documents a smoother experience. This method is totally free, involves no soldering and, if you stick with clock rates and don't tamper with the voltage, doesn't even void your warranty. I am in NO WAY an expert, especially with hardware, but this is very commonly done among the Raspberry Pi community and reasonably safe as long as you follow the instructions well.

http://www.instructables.com/id/Overclock-your-Raspberry-Pi-Squeeze-more-power-o/





Míudagem, eis como se começa a Inventar cedo na vida... Mas atenção, as Nerfs devem PARECER Nerfs, fora de casa, para evitar problemas!

Semi-Automatic Nerf Nitron Mod

In this Instructable I'm going to show you how to mod a Nerf Nitron into a semi-automatic gun. You might ask yourself, who in their right mind would turn a fully automatic gun into a half automatic one? The answer is simple, it gives you better control, is lighter and who has ever fired a Nerf Nitron knows how ridiculously slow it normally is. This combined with a voltage mod makes this gun simply amazing (now it takes less than 5 seconds to fire 20 shots).

 

http://www.instructables.com/id/Semi-Automatic-Nerf-Nitron-Mod/

sábado, 15 de setembro de 2012

O Arranjo Halbach

Eis algo de bacano, de Diego Dandolini Pasini, para explicar o Arranjo de Halbach!

O Arranjo de Hallbach

E quem quizer comprar uma Armação para o Arranjo Halbach, seja o Circular, de 12 Ímanes, ou o Linear, de 5 Ímanes, cortado em Laser, ou em 3D, é só irem a estes lugares:

12 Ímanes, cortado a Laser:


5 Ímanes, cortado a Laser, um conjunto de 4 Armações: 


12 Ímanes, circular, num Objecto impresso em 3D:

Sculpteo:

Shapeways:

 


5 Ímanes, linear, num Objecto impresso em 3D:
Sculpteo:

Shapeways:


quarta-feira, 29 de junho de 2011

Campos Magnéticos, guias no escuro, e CNC em casa

91,4 Teslas!
Um Recorde Mundial de força, num Campo Magnético!


German Lab Generates the Strongest Magnetic Field Ever Created
By Clay Dillow

Call it another victory for German design. Researchers in Dresden have set a new world record for the strongest magnetic field ever manufactured at the High Magnetic Field Laboratory Dresden (HZDR). Using a two-layer, 440-pound copper coil the size of a water bucket, they managed to coax 91.4 teslas from their creation for just a few milliseconds, surpassing the previous record of 89 teslas.

That’s a lot of teslas. Your standard high-power copper coil would be torn apart at something like 25 teslas, the researchers say. That’s because the magnetic field and the electric current that creates it work at cross purposes at higher energies. The current running through the coil generates the magnetic field, but the magnetic field pushes back against the electrons flowing through the coil. The stronger the current, the more the magnetic field pushes back, and once the current crosses a certain threshold the magnet will quite literally tear itself apart.

http://www.popsci.com/science/article/2011-06/german-lab-generates-highest-magnetic-field-ever-created-lab



Um cinto vibrátil, que orienta Soldados no escuro, talvez um dia,  essa tecnologia, mais barata, oriente Cegos, na vida civil:

Haptic Vibrating Belts Guide U.S. Soldiers Through the Darkness
By Rebecca Boyle
Soldiers already have plenty of nighttime tech to help them navigate battlefields, but goggles can be clunky and obtrusive, and backlit GPS displays can betray a lurking warfighter’s position. A new haptic interface developed by Army researchers will help soldiers feel their way through the darkness instead.
Researchers at the Army Research Office developed a vibrating belt with eight mini actuators — “tactors” — that signify all the cardinal directions. The belt is hooked up to a GPS navigation system, a digital compass and an accelerometer, so the system knows which way a soldier is headed even if he’s lying on his side or on his back.


http://www.popsci.com/technology/article/2011-06/new-haptic-system-guides-us-soldiers-through-darkness



E uma máquina de CNC feita em casa, por 300 Dólares!

Desktop CNC machine for $300 — an open hardware project on Kickstarter 

When Edward Ford told us about his plan to launch a Kickstarter project for his self-built CNC machine — made with SparkFun electronics and laser cut with his Personal Factory — we jumped at the chance to support his project.

The ShapeOko is a complete, desktop CNC machine that anyone can build for about $300. And its all open-source!

From the ShapeOko Kickstarter page: “From CAD and CAM software to the CNC controller; every step has an open source solution. Did we mention the entire project itself is open source? Every nut, every bolt, every belt, fully documented with part numbers and vendor list. Do with it as you please!”

The goal is to finalize the ShapeOko design, make it repeatable, and then freely distribute it under an open source license.

And project funding will go to finishing the design (purchasing materials, paying for laser cutting time, testing new designs, and exploring ways to drive the final build cost even lower than $300)

This project needs just $1,500 by July 26th.

http://blog.ponoko.com/2011/06/28/desktop-cnc-machine-for-300-—-an-open-hardware-project-on-kickstarter/

quarta-feira, 7 de abril de 2010

Fusão em todo o lado?

Fusão em todo o lado?
We may even have to simply ground the excess in many cases.  Needless to say this technology if it succeeds will be a complete revolution of the global economy as we can expect these devices to be placed everywhere including trains and ships.  It will also be swift.  Both this technology and the polywell are amenable to early mass production since no radioactive shielding is needed.

segunda-feira, 1 de março de 2010