Blog Posts

segunda-feira, 29 de fevereiro de 2016

Formcard! Mais o novo Raspberry Pi, Armações 3D, a Impressora 3D Tetrix, e Micro-motores

Eis algo para ter sempre no bolso, Plástico termo-moldável, para reparações, Moldes, bases para o Smartphone, e tudo o que calhar! 
E numa placa bem maneirinha, que cabe no bolso da camisa:

Melt, Mold, Make, Mend  
FORMcard is a handy, pocket sized card of meltable bio-plastic. Simply drop it in a cup of hot water to make little solutions to everyday problems. When it's cool it's really strong like nylon, so you can make solid durable solutions with it, and then you can reheat it again and again to adapt, change and reuse it. Because it's a convenient card size, you can keep one in your pocket, wallet, kitchen drawer or tool box so that it's there whenever and wherever it's needed.
A great benefit is that when it's very hot, it sticks to some other plastics, so you can actually use it to instantly fix say.... a favourite plastic shovel when you are on holiday.
(please remember that hot water and hot FORMcards should be handled with GREAT care as either can scold you. Very hot FORMcards are sticky when they first come out of the hot water and can also stick to wooden surfaces. Work on a ceramic plate and if in doubt about using it, let it cool down first, you can always heat it up again later on!)
FORMcard is designed and developed by Peter Marigold and launched on Kickstarter on the 11th November 2015. It was successfully funded on the first day and completed the campaign with 816% funding and more than 2000 backers. It will soon be fully commercially available around the world. 
It would be great to connect with you on social media where we will be posting updates as the project develops by clicking on the links at the bottom of this page. 

O Micro-computador Raspberry Pi vem com 10 vezes mais potência que o oroginal(!), e Wireless LAN e Bluetooth, é só verificar as capacidades cada vez maiores desta pequena maravilha:

Raspberry Pi
A small, powerful and lightweight ARM based computer. 
Introducing the new Raspberry Pi 3 Model B, the latest member of the Pi family. Delivering up to 10x the processing performance of the original Raspberry Pi and added connectivity with 802.11 b/g/n Wireless LAN and Bluetooth 4.1. 
The new board is not only great for learning to programme, gaming and hacks it’s now perfect for IoT projects too. 

Eis algo de interessante, peças de canto para fazerem as vossas próprias Armações, de Impressoras 3d, Fresas 3D, ou lçá o que seja...
Feitas por Impressão 3D! 

Custom Sized Frame Kit 500mm
The wall thickness is 5mm.
3D Printed using Strong PLA Plastic
Parts Included
2020 alu profile 500mm 8
2020 alu profile 500mm 4
Plastic tri-corner 8
Allen cap 8mm screws 100
Slide M5 Tslot nuts 100
M6 threaded feet

Há mais barato, há mais caro, mas não há, é mais Didáctico.
Uma Impressora 3D para a Educação, que a brincar, a brincar, faz os alunos aprenderem CAD, Electrónica, Programação, e Técnicas de Construcção, ficando-se com uma Impressora 3d, por Bónus!

Ficam ainda a saber, se não sabem, que a Tetrix, é um Jogo de Contrucção, como a Meccano, mas muito mais preciso, tão mais, que serve para montar destas Impressoras! 

TETRIX 3D-Printer
The TETRIX 3D-Printer was designed as an educational tool for middle and high school technology students, robotics teams, and adults. The purpose of constructing the printer is to train people's building, tool usage, electronics, CAD, and programming skills with a single project. You also get a 3D-printer once you're done!
The printer design is based on TETRIX parts, which are designed by PITSCO and used in the FIRST Tech Challenge robotics competition. The printer also utilizes elements of various RepRap printer designs, such as the Printrboard control system. The design is completely open-source, so feel free to personalize and alter your printer.
The overall cost of the printer is about $640, and the educational value is priceless! The majority of the cost is attributed to the TETRIX parts, but the high accuracy of the pre-drilled, pre-sized aircraft-grade aluminum saves time and reduces error, which outweighs the price.

E cá vai Dica, para terminar por hoje, estão sempre a perguntar onde é que se arranjam aqueles micro-motores dos Quadracópteros de ter por casa, pois aqui está um Link para os poderem comprar, à fonte...
E atenção, no Site, página inicial, há muito mais, como armações, Baterias, Hélices, etc.  

CL-0820-17 "Dark Edition", motor set, direct drive 
(speed: insane)
compatible to:
- Hubsan 107C, 107D
- many other micro quads with 8.5mm motor holders
speed: 17.000K
operating voltage: 1.5-3.7V
max. static thrust: 40g (direct drive, Hubsan X4 propeller)
3.2A max. load current at 3.7V  (Hubsan X4 propeller)
factory lifetime rating: 5-6 hours
can diameter: 8.5mm
can length: 20mm
shaft diameter: 1mm
shaft length: 5mm
weight: 4.9g
wire length: 8cm
plug: Micro-JST-1.25
housing: dark anodised

quarta-feira, 24 de fevereiro de 2016

Um Anel-Relógio! E Visão Nocturna, como vender Modelos 3D, controle com Pi, e Dobrem Tubo.

Ora aqui está uma pequena maravilha, um Anel-relógio, coisas que eram dos Filmes de  Ficção-Científica, há uns anos, agora, vocês fazem em casa, é só seguir as Instrucções!

ATtiny85 Ring Watch

Based on the previous Instructables - ATtiny Watch Core and more, I have made a real gadget, an ATtiny85 Ring Watch.
Today core subject, ATtiny85. Someone suggest me to use SOIC version to reduce the watch size and I found the coin cell mAh calculation method will count the battery voltage down to 2.0 V, so this watch require a low voltage version MCU to keep it stable. So I have ordered an ATTINY85V-10SU. (much expensive $_$) 

Querem ver no escuro? 
Já podem, agora, com este Visor de Infravermelhos, que constróem em casa:

DIY Infrared Night Vision Device


 I've been involved with airsoft for about two years being affiliated with a large local group of people in our community who meet regularly and have scheduled games, ops, and events. Airsoft is a great sport and hobby that encourages teamwork, honor, respect, communication, and discipline (as well as how to wisely make purchases). I recently played a game at night and realized how cool it would be if I could utilize some form of night vision. The more I researched it, the more I wanted to see in the dark somehow.
Unfortunately, true night vision in even the lowest quality can cost hundreds of dollars just for the optic alone, excluding hardware necessary to mount the optic to a helmet or airsoft rifle. It's expensive technology. However, there are alternative methods for seeing in the dark. There are several versions of educational night vision viewers and toy spy binoculars available on the market for kids, geeks like me. They utilize low-lux cameras, infrared illumination, and a display for a more affordable $50-$80 system that can still see in the dark. This is the system I chose to utilize.
Being inspired by DIY'ers like Kipkay, and reading books like 50 Spy Gadgets for the Evil Genius, I chose to invest the money to build my own infrared night vision viewer. Besides, both of those night vision builds use parts that can only be scavenged, not purchased individually. I wanted to show how to build a unit from stuff you can buy online easily or at the store.

Eis uma data de Dicas sobre como desenhar, e vender os vossos Objectos 3D, que fazem sempre falta, juntamente com uma lista de Programas, e façam favor de aprender, que é de borla, uma oferta da Pinshape!

Pinshape 3D Printing Design Guide: Learn How to Sell Your Models

Bridget Butler Millsaps  
Sometimes the world of 3D printing still feels a bit like the wild, wild west. The rules are being made up as we go, and it’s still a fairly lawless frontier, as well as one where you, well, sometimes just have no idea how to pull off a particular concept, or no earthly idea why something went wrong when you were in the throes of creativity, bringing a supposedly great design to fruition. And of course, when things do go stupendously, we want to share. Thank goodness now for the talented—and generous—souls in the Pinshape community, who have offered up all of their tips, now compiled in their ­­­­­­­­­­­­­­­­Pinshape 3D Printing Design Guide. 

Podem controlar o que quizerem, lá em casa, com um Raspebby Pi!
Sim, controlam uma série de Relays, assim, e ligam e desligam tudo o que tiverem para ligar e desligar. 
Vejam agora como: 

Controlling any device using a Raspberry Pi and a relay module

The goal of this ible is to show how to get started with setting up a relay module on your pi and controlling it. My goal is to add scripts to my octopi to turn on and off LED lights, but anyway you decide to eventually control the GPIO commands, the setup is the same. 

Sem serem o Bender, já podem agora dobrar Tubo à vontade, o que abre toda uma nova Gama de possibilidades, para Estruturas de toda a ordem...
Um Achado! 

Tube bender

I would have liked it to make a new seat for my recumbent bicycle and for it was necessary some aluminium tubes and to bend those on proper shape. In our town I have not found a place to bend some tubes and I have decided to make my own tube bender for this work. 

quarta-feira, 17 de fevereiro de 2016

Cinco! 5 Dicas para 3D, Óptica, 5 Dicas de Baterias, Circuitos Impressos, e um Laboratório de Electrónica

Onshape, o fantástico Programa 3D Online, vem-vos dar 5 Dicas para causar uma boa Impressão, imprimindo Objectos de qualidade...

Top 5 Design Tips for 3D printing

Designing for 3D printing can be quite different than designing for other purposes. Something that looks beautiful in your CAD program could be extremely difficult or messy to print which creates a frustrating experience for any Maker.

Optica e Impressão 3D, dica da Sculpteo, ora eis mais uma aplicação para a Impressão 3D,  que vai realizar muitos Sonhos de Engenhocas!


Engineers have a bright future in 3D printing & optics
Jess Hedstrom

The optical industry is one of the most exciting industries affected by additive manufacturing, as well as one of the oldest. The earliest known lenses were made from polished crystal in 750 BC and though we’ve seen upgrades to the industry over the centuries thanks to engineering, we are at the brink of an amazing breakthrough! 3D printers, both professional and desktop, are pushing the boundaries of what can be done. Today we are going to discover how this industry is being democratized before our eyes.
In this article we will uncover the benefits of 3D printing technology on lens + frame manufacturing, while at the same time discovering how the ocular medical industry is shifting thanks to the technology. We also dissect how LED lighting and virtual reality have utilized additive manufacturing to make giant leaps in the optical industry.

Eis 5 maneiras de usar baterias, para vos facilitar a vida, com Ferramentas simples, e gastando pouco:

5 Simple Battery Hacks
by The Science Brony

Hello everyone, this is the science brony. I will show you a few innovative ways to use batteries for different things. They require very little tools and will save you money. As Pinkie Pie says: enough chit-chat! Time is candy!

Circuitos Impressos, e como os fazer com Químicos achados em casa, nas vossas Cozinhas!

Is the best PCB etchant in every kitchen ?

After a lot of reading and inspiring from Instructables for two years now I decided to step ahead and do my first Instructable on two subjects I particularly like : PCB making & The scientific method.
Feel free to comment and criticize my work, I think scientific method is also about improving and discussing the best way to experiment :) !
English is not my native language so please excuse my hesitating grammar.
5/30 Edit : I would like to thank you all for supporting this Instructables in the Scientific Method contest =D See you for other experiments !

E se têem pouco espaço, notem só esta solução para um Laboratório de Electrónica, num cantinho à maneira:

Make A One Desk Electronics Lab (in a small place, for beginners)

Living without closets and without a work room isn't easy, really don't like that I have a small room. We have a weekend house, that I'm visiting very often because I have a whole electronics lab there (with Arduino stations and many more), but here at home in my extremly small room I haven't enough space to make a fully functional lab, so I should be creative.
In this Instructable I'll show and explain you how to organize your desk to have everything that is neccesary for electronics projects. I'll show you that what kind of tools and parts are needed in your inventory. If you're a beginner hope I'll help you. I also will show you some life hacks that you may find useful. If you liked this Instructable let me know if you want to see my electronics workplace.

segunda-feira, 15 de fevereiro de 2016

Íman reversível! E mais uma Cortadora Laser CNC feita em casa, uma ideia do caraças, Pinos-Mola, Genuino, e desenhem a vossa Impressora 3D!

Cá está, da minha lavra, um arranjo magnético Halbach que ou atrai ou repele outro, por rodar sobre si próprio, invertendo a polaridade...
Pode funcionar por alavanca, ou por Rotação:

An aplication of the Halbach Array, by wich, groups of Magnets, each set 90 degrees to the next, have almost all the magnetic attraction concentrated on one side, i.e. a Monopole Magnet. In this case, the top Magnets, by the lever on the back, turn 180 degrees, so as to either attract or repell the sliding bottom array, thus creating a switchable magnet array, out of permanent Magnets. 


Aqui vai mais uma maneira de começarem a vossa Oficina CNC, e/ou a vossa Oficina de Aeromodelismo, etc. 
Uma máquina de Corte Laser CNC, que vocês fazem em vossas casas!

CNC Laser Cutter Journey
I want to share with you the journey had had , creating my very own CNC laser cutter.
This projects is about 2 years in the making, due to research and development, and spending allot of time on it took me a bit longer than anticipated , but I finally decided to start building my very own CNC laser cutter in the middle of 2014.
Motivation behind this was that I fly and build model airplanes , and wanted an easier more precise method of manufacturing parts for these planes etc. 

Aqui, poupam-se a ter de fazer um par de Rodas dentadas, para transmitir uma rotação a 90º, mas atenção, ao contrário das Engrenagens, este movimento mantém o mesmo sentido de rotação!
Cortesia deste Blog, o Nerd 360 graus:

Será uma Mola-Pino, ou um Pino-Mola?
O que é de certeza, é uma boa solução para Molas em espaços limitados, e cá vai, cortesia da Traceparts, um Manual grátis sobre como desenharem uma destas:

Download SPIROL's Complimentary Coiled Spring Pins Design Guide. 
SPIROL invented the Coiled Spring Pin and its production technology in 1948. Since that time, the Coiled Spring Pin has proven to be the most versatile spring pin in the industry. More than fasteners, SPIROL Coiled Pins provide flexibility, uniform strength, equal stress distribution, closer diameter tolerances, no interlocking, trouble-free automatic feeding, and they reduce costs. Learn how you can take advantage of Coiled Pins in your assembly!   

Aqui está o Genuino, um Arduino feito com Intel, e que vem com um Giroscópio e tudo, para Iniiados em Programação e Electrónica, mas é claro que os mais Engenhocas irão utilizar isto para N usos avançados...

NewGenuino 101 board powered by Intel
Genuino 101 Development Board powered by Intel
The Genuino 101 Development Board powered by Intel, and developed by Arduino and Intel®, is an educational tool for beginners to electronics and programming. The more experienced among you can also use the board to prototype IoT designs such as wearables and Smart home/leisure devices. A successor to the Arduino Uno, the Genuino 101 board features extra functionality, notably Bluetooth Low Energy (BLE), a six-axis accelerometer and a gyroscope.  

E se acham que podiam fazer uma Impressora 3D melhor, ou mais eficientem, ou sei lá que mais, aprendem aqui como desenhar tal Máquina-Ferramenta:

How to Design a 3D Printer

I recently built my own 3D printer with a friend. The process was both challenging and rewarding, and it's awesome to have a 3D printer of my own design. However, I found very little information out there on how to make a 3D printer from scratch on my own.
The goal of this instructable is to help those interested in 3D printing to have a chance to design and build something that is truly their own and providing resources to help organize the process of making a 3D printer. This process mirrors the engineering process very closely, but will also provide useful resources along the way.