A Newsletter da CNCKing, e carradas de Instructables!

O nosso amigo Jon Cantin, fornece-vos esta Newsletter, a padido, e não é que têem à vossa disposição notícias e ainda, uma data de Projectos fantásticos, como a minha ElastomatiK?

 

May Newsletter

3D Printer, Laser & Table Router Files!

I've been rather delinquent on sending these newsletters out... always more work than hours but I'll try to get these out at least once a month from now on.

If you haven't already, be sure to subscribe to the blog, I've added a new option (right column) to make it easy for you to keep up to date as soon as something gets published.

http://us2.campaign-archive2.com/?u=ef894f5a8fb191e4d83332051&id=969907e81c&e=347ef607de

Nitinol, a fantástica Liga Metálica com memória!

Qual o Engenhocas que não quer experimentar com isto?

Pois agora, podem fazer este Metal-Maravilha em casa, e aconselho-vos vivamente a fazerem o Download do Pdf:

How to Form Memory Wire Nitinol 

Pickledkitty

Memory wire, a.k.a. Nitinol, a.k.a. Muscle Wire, a.k.a. Flexinol, is a nifty metal alloy (mixture) of Nickel (NI) and Titanium (TI). The NOL stands for Naval Ordinance Laboratory, where the memory properties were discovered by William J. Buehler and Fredrick Wang. If you are interested in buying Nitinol or the history and its many uses, check out these links:
http://www.robotshop.com/flexinol-en.html
http://www.musclewires.com
http://en.wikipedia.org/wiki/Nickel_titaniu

http://www.instructables.com/id/How-to-Form-Memory-Wire-Nitinol/ 

Para os Engenhocas, há sempre uma altura em que vão precisar duma Voltagem mais alta, Muáháháhá!

E é isso que esta simpática Engenhoca faz, aumenta a Voltagem dos vossos Circuitos, e dá por exemplo, para recarregarem os Télélés a partir dum par de Pilhas de 1.5 V:

Adjustable Voltage Step-up (0.7-5.5V to 2.7-5.5V

Joohansson

Introduction:
A voltage step-up is a circuit that increases the voltage. It can be AC/AC, AC/DC, DC/AC or DC/DC.
This voltage step-up is a DC/DC adjustable voltage regulator. Usually a voltage regulator is fed by a higher input than output voltage, for example 9V IN to 5V OUT. This circuit will take a low voltage (down to 0.7V) and step it up to adjustable 2.7-5.5V. Since it is a regulator, the output voltage will stay constant regardless input voltage (0.7-5.5V), as long as output voltage is higher than input. It cannot step-down, only step-up. Are there any ICs that can do both?

I build it for usage in this project:
http://www.instructables.com/id/Battery-Charger-Powered-by-Fire/

Applications:
This is a typical circuit for a battery-powered USB-charger, for example two AA batteries (3V) to power 5V USB. There are tons of DIYs how to create that. They are often hard-specified to 5V output power. This construction can be used in a range of other applications. Many electronic devices work within 3-5 V and often you want to power them by low voltage power sources.

http://www.instructables.com/id/Adjustable-Voltage-Step-up-07-55V-to-27-55V/

Uma Bicicleta para dois... 

Agora que veio a Primavera, levem as Namoradas e / ou Esposas, nesta Bicilcleta, que é Romântico à brava:

Diy tandem

Gael - Tim

Ok, to begin with I'm sorry about the limited amount of pictures taken during the actual build. I was a little bit too excited while building this to think of regularly taking pictures, some of you might know a little bit about this... So if the pictures don't make it clear enough, feel free to ask questions! I've wanted to build a tandem for quite a long time but never really found the will power to do so... until I met my girlfriend! :D I asked her "If I build a tandem, would you trust me and my creation enough to ride it with me?". The answer was "YES", so from that moment I was determined to build ourselves a tandem! I scavenged two old bikes, one with a frame large enough for me and another with a smaller frame for mademoiselle. Oh, if you didn't get it yet, the idea was to cut and weld two bike frames together to make the tandem, and that's pretty much EXACTLY what I did. 

http://www.instructables.com/id/Diy-tandem/

E prá Brincadeira, para os Tempos Livres, eis um Projecto porreiro, uma mesa de Flippers em Miniatura, para jogarem Pinball nas vossas Tablets, como deve de ser...

É bom, esperem, é mais que bom!

Já viram que se pode ganhar uns cobres, na maior moleza, a fazer disto pró Pessoal, Malta?

Mini Pinball 

laxap

Make an awesomely playable mini pinball, out of an Android tablet, real arcade buttons, some wood and some software!

There are some very good Android pinball applications. But I do not like to play using the touchscreen (I always end up hitting the home or menu icons).

I just needed real buttons, so I built this cabinet. The result is really reactive, and give full justice to these amazing 3D pinball simulators!

http://www.instructables.com/id/Mini-Pinball-1/

Nitinol! Construam a vossa Máquina-Maravilha

É muito bacano, quando se pode ver um Vídeo destes, e a seguir, comprar pela Internet o Nitinol para fazer isto aí mesmo, em casa!

Há muitas mais fontes de Nitinol, mas esta é uma delas, e uma, que já conhecemos: 

Memory spring and memory wire

Memory Wire

This nickel/titanium (NiTi) alloy initially ‘remembers’ that it should be straight. If it is bent into a different shape and then dropped in very hot water (90°C), it springs back to its original straight condition. It will repeat this behaviour any number of times.

The wire can also be heat treated to remember different shapes. It simply has to be held in the desired shape and then heated to 500°C in a small oven for a few minutes. This means that pupils can now get involved in creating smart springs and other components that a few years ago would have challenged front line researchers.

Memory wire has several important medical applications. It is used, for example, to make surgical stents – small woven frames that balloon outwards to open blocked arteries. It is also used for orthodontic braces. Some smart textiles use woven-in memory wire to change the shape (and support) of garments when they reach body temperature. Because it can be heat treated, the potential of memory wire in designing and making is virtually unlimited.

The wire is sold by the metre.

Two-Way Memory Spring

These remarkable springs, based on a brass alloy, ‘remember’ to open up at around 90°C and close again when cool. If immersed in hot water at or around 90°C they will open in a split second and close as quickly if dropped in cold water. Such springs have many industrial applications – e.g., in sprinkler and fire damping systems where they replace expensive single-use only fusible links.
Memory springs open and close with considerable force and are used in countless applications where movement is wanted at the opening and closure threshold temperatures.

http://www.mindsetsonline.co.uk/product_info.php?products_id=1151

Segundo a DesignSpark, o Hardware é a nova Web, em termos de influência verdadeiramente revolucionária, na Sociedade:

Hardware is the New Web

An Arduino workshop at the Noisebridge hackerspace in San Francisco (© Mitch Altman, CC BY-SA 2.0)

With hardware start-ups on the increase, countless gadgets funded via Kickstarter and a resurgence of interest in electronics as a hobby, it looks as though hardware is set become the new Web.

From the first public radio broadcast in 1910 to the home computer revolution of the 1980s, electronics served as the most visible face of technology in the 20th century. When for almost 100 years everyday lives were being transformed by a stream of new appliances, intrepid early adopters could get a slice of the action if they could solder, and electronics empires were being born in garages.

With the arrival of the PC and then the Web we saw a shift in focus, and while software requires computers and the Internet is built upon networking and communications hardware, these took a backseat position and applications and online services garnered more attention. All the hottest start-ups were online and many budding engineers took to software development rather than soldering.

As we move further into the 21st century it appears that the balance may be redressed, with attention shifting back towards hardware — or perhaps products that span both physical and online worlds. What follows is a brief look at some of the enablers, drivers and indicators of this shift.

http://online.rs-components.com/interface/external_view_email.php?A91228263317100970537926282218

E para acabar, que hoje é Sábado, um Braço Robótico mais que flexível...