Blog Posts

segunda-feira, 11 de maio de 2015

Soldar, sem solda? E um Computador a 9 Dólares(!), uma Injectora de Plástico para Fabbers, e Alívio para a Dor, mais uma Câmara de Infravermelhos

Eis como fazerem algo em Electrónica sem as chatices do Fumo e da Solda...
E ainda ficam com uma ligação à prova de àgua!
É bom!

Solder Sleeves
Solder, heat shrink and waterproof your splices in one operation.

This is the easiest way to make soldered splice in your wiring. It is our favorite way to extend the wires on stepper motors.
This part combines a low temperature solder ring inside a piece of clear heat shrink tubing. It also has rings of hot melt glue at each end. You strip each wire, insert one from each end and cross the stripped ends inside the solder ring. You then heat the tubing with a heat gun. The solder and glue melts and the tubing shrinks. You get a reliable, insulated, waterproof and soldered connection in one operation.
It is also great when you need to fan out one wire to several wires. This often happens when you have one ground terminal, but four wires coming to it. Place the four wires in one end and one in the other end.

Um Computador por 9 Dólares? 
Com ligação Wifi, e gestão de Bateria?
Sim, se só precisarem de computadorizar uma Engenhoca, ou terem um Smartphone ou Tablet feito à vossa medida, porque este liga-se a um Televisor, ou Écran de Smartphone, com Monitor é mais caro.

Next Thing Co. Releases “World’s First” $9 Computer
David Scheltema

Snuggly situated in an industrial section of Oakland, CA is Next Thing Co. a team of nine artists and engineers who are pursuing the dream of a lower cost single board computer. Today they’ve unveiled their progress on Kickstarter, offering a $9 development board called Chip.
The board is Open Hardware, runs a flavor of Debian Linux, and boasts a 1Ghz R8 ARM processor, 512MB of RAM, and 4GB of eMMC storage. It is more powerful than a Raspberry Pi B+ and equal to the BeagleBone Black in clock speed, RAM, and storage. Differentiating Chip from Beagle is its built-in WiFi, Bluetooth, and the ease in which it can be made portable, thanks to circuitry that handles battery operation.

Ter a vossa própria Fabriqueta na Garagem, passará certamente, mais cedo ou mais tarde, por terem uma Máquina de Injecção de Plástico, para os vossos Projectos.
Pois aqui vai uma que podem fazer em casa, baseado no Ilustre trabalho da casa Gingery:

Make Your Own Injection Molding Machine
John Hannon

Tried, true, and totally doable. Start cranking out solid thermoplastic parts.

Sometimes there’s a tool you want to buy, but you can’t justify the cost. In that case, why not make it? For me, a plastic injection molding machine fell into that category — and it turns out they’re not hard to make.
I wanted to make solid plastic parts for some of my amateur science experiments. There are a number of ways to make things out of plastic, each with its advantages and disadvantages. Often just cutting raw material to the desired shape works best. Some plastics can be cast by pouring a liquid resin with hardener into a mold (see “DIY Rotocaster,” Make: Volume 41). Vacuum forming works well for making things out of thin sheets of plastic (see “Kitchen Floor Vacuum Former,” Make: Volume 11). I considered making a 3D printer, but for the few plastic parts I envisioned needing, it wasn’t worth the time and money.
Plastic injection molding has been around since thermoplastics were invented. It’s a great way to make many copies of a part quickly, and what I like best is that it’s easy to reuse old plastic objects to make new ones.
So I built an injection molder based on the plans in Vincent R. Gingery’s book Secrets of Building a Plastic Injection Molding Machine. David Gingery could be considered a forerunner of the Maker Movement — he and his son Vincent have written a whole series of books on building tools for the machine shop.

E aqui vai mais uma Engenhoca para os que sofrem com as Dores, uma máquina que vos alivia o Sofrimento...

LumiWave: A Breakthrough for Injury & Pain Relief

Campaign Highlights
If you want to feel better every day; move better every moment and compete at the highest level, support this crowdfunding campaign. We need your help. 
Your contributions will jump start our new manufacturing process to reduce our costs –costs which we will pass on to you as lower pricing. For a limited time, pre-orders are offered at $199. That’s 60% off our current price.
Your Pain may be after skiing, running, competitions or workouts. 100 million of you experience chronic pain – all day, every day.  Your pain may be an ankle, knee or shoulder. Some of you may have back and neck pain. Your pain may be caused by athletics, auto or work related injuries. Or it could be the result of Arthritis, Osteoarthritis, Multiple sclerosis, Shingles or Nerve damage (neuropathy).

Eis a FLIR C2, uma Câmara de Infravermelhos de Bolso, para a Construcção Civil, mas é claro que os Ẽngenhocas a irão usar para uma Miríade de outros fins...

FLIR C2 Thermal Imaging Camera, Temperature Measurement Range: -10 → +150 °C

The FLIR C2 is the world’s first full-featured, pocket-sized thermal camera designed for building industry experts and contractors. C2 features FLIR's unique MSX® that adds key details from the onboard visible light camera to the entire infrared image in real time.

IR Sensor: 80 ´ 60 (4,800 measurement pixels)
Field of View: 41° x 31°
3" Display (Color) 320 x 240 pixels
Auto Orientation
Touch Screen
Object temperature range: -10°C to +150°C (14 to 302°F)
Storage Media: Internal memory stores at least 500 sets of images
Image file format: Standard JPEG, 14-bit measurement data included
Digital Camera: 640 x 480 pixels
Size (L x W x H): 125 x 80 x 24 mm (4.9 x 3.1 x 0.94 in.)
Weight: 0.13 kg
Supplied with

Infrared camera, battery (inside camera), lanyard, power supply/charger with EU, UK, US, CN and Australian plugs, printed getting started guide, USB memory stick with documentation, USB cable.

    Application    Building
    Best Temperature Measurement Accuracy    ±2 °C
    Detector Resolution    80 x 60pixel
    Dimensions    125 x 80 x 24mm
    Display Resolution    320 x 240pixel
    Display Size    3in
    Field of View    41 x 31°
    Focus Type    Fixed
    Height    24mm
    Horizontal Detector Resolution    80pixel
    Horizontal Display Resolution    320pixel
    Horizontal Field of View    41°
    Length    125mm
    Maximum Temperature Measurement    +150 °C
    Minimum Focus    0.15 (Thermal) m, 1 (MSX) m
    Model Number p    FLIR C2
    Refresh Rate    9Hz
    Storage Media    Internal Storage
    Temperature Measurement Range    -10 → +150 °C
    Thermal Sensitivity    <0 .1="" br="">    Vertical Detector Resolution    60pixel
    Vertical Display Resolution    240pixel
    Vertical Field of View    31°
    Visual Camera    Yes
    Weight    0.13kg
    Width    80mm

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