TESLA! E Injecção de Plástico, um Órgão que aceita MIDI, Tiro-ao-alvo DIY.

Uma Bobine Tesla!!!

Será necessário dizer mais?

Podem montar a vossa, em casa, com este Instructable, para experiências, demonstrações...

E porque sim!

Easy Tesla Coil!
DrewPaulDesigns

Wireless electricity is here! From wirelessly powered lighting to wireless chargers and even wireless smart homes, wireless transmission of power is an emerging technology with innumerable applications.
A light bulb powered with no wires? A cell phone charger that doesn't need to be plugged in? A home with no plugs, no wires and everything just 'works'? It's not magic, it's no mystery, it's science!
The invention of wireless power transmission is typically attributed to 20th century inventor Nikola Tesla, though the technology may have been in use much earlier. Since then, however, improved designs and modern components make this an easy DIY project anyone can do with just a few simple parts!

https://www.instructables.com/id/Easy-Tesla-Coil/

Podem reproduzir Ad Infinitum as vossas Impressões 3D e tudo o resto, com este Instructable.
Porque vão ficar com uma Máquina de Injecção de Plástico...
E ainda por cima, custa muito pouco!

É bom!

Injection Molding Machine for under $100 in parts using less than $700 worth of machinery!
Wildman Tech

 Here I build an injection molding machine for less than $100 in raw materials! WARNING! I use some tools in this video that cost me less than $700, so don't go into hysterics about a multi-million dollar machine shop. See me build the same parts with nothing but a hand drill here....

https://www.youtube.com/watch?v=MlYdd5I33Oo

Eis algo de muito diferente, mas fascinante!

É um Órgão a Ar Comprimido, mas um com Teclado, e aceita ficheiros MIDI, o que o faz um incrível Instrumento Musical.

Bom para ouvirem em casa, pequenas Feiras, ou  Associações Recreativas, e, é claro, Reuniões e Congressos Steampunk!                                                                                                                  

Mini-Calliope Dec 1982 Popular Mechanics Part 1
Ronald Walters

My build will look similar to the 1982 Popular Mechanics project. However, my version will play from the keyboard or by midi files and will use an external air source.

https://www.youtube.com/watch?v=QDm6kBgTMq0

Para uns minutos de diversão, com uma pistola de Ar Comprimido, que fazem vocês mesmos, para pouparem dinheiro, terem o prazer de a fazerem vocês mesmos, e a fazerem como quizerem!

Porque, lembrem-se, podem ter apenas a pressão que sirva para disparar no vosso Quintal, sem chatices.

E é Steampunk à brava! 

Mas tenham muito cuidado, tanto com a Legislação vigente, onde vivam, quanto à Segurança necessária, para disparar o que quer que seja!

Muy poderosa arma de tiro de pistola de aire hecha en casa
xyx

Como Hacer un Arma Casera Facil y muy Potente

https://www.youtube.com/watch?v=dNo2IWdW6QM

Falando de Segurança, eis um Drone que podem voar onde queiram, sem perigo de serem cortados pelas hélices dos mesmos, destruírem a Mobília, ou aleijarem o Gato!

Para além de usarem Turbinas, mesmo essas, ninguém as vai tocar, nem um simples saco de plástico vos vai tramar a vidda...

Bladeless Drone: First Flight
Stefano Rivellini

With 4 ducted fans, and some carbon fiber, I built a bladeless drone that I think is one of safest in the world. It uses 4, 90mm ducted fan propulsion units buried deep inside what I call a “bent tube” propulsor. The fifth “leg” is a parachute can. Hopefully I will never need it. With some help from my dad, we built the entire airframe primarily out of carbon fiber and some balsa wood. I bought all the electronics on line and was able to design the drone so that it would operate with a standard DJI multi rotor flight controller even though it doesn’t have vertically oriented propellers. With its top mesh installed its virtually impossible to get fingers and objects in contact with the blades. I submitted a patent application for my invention. I think a drone like this could have industrial applications where a drone needs to operate close to people, objects, and in confined spaces to do inspection and other activities.

https://www.youtube.com/watch?v=5L6FSdUmEpg

Jacto-de-àgua CNC! E construam o vosso Drone! E estampar Couro, analizar WiFi, e ganhem Royalties!

Uma Cortadora de Chapa CNC, é uma Ferramenta que vos permite muita coisa...
Pois vejam lá, que já as há, acessíveis!
É MUITO bom!

Tinijet — Affordable Waterjet Cutting At Home

James Hobson

While laser cutting remains the dominant force for rapid prototyping anything made of plastic, MDF or wood, the real holy grail is the ability to cut metal — something most laser cutters are just not capable of.
In the industry, this is done using extremely high-powered laser cutters, plasma cutters, or water jet cutters. All of which are very pricey equipment for a hacker. Until now anyway. Introducing the Tinijet, the missing tool for affordable water jet cutting.
We first covered this project a few years ago when it was just a university research project called Hydro — it’s since evolved immensely, and will be available for sale very soon.

https://hackaday.com/2016/02/04/tinijet-affordable-waterjet-cutting-at-home/

Para combater os Incêndios, ou filmar, ou o seja que lá o fôr, não precisam comprar, FAÇAM o vosso próprio Drone, ao vosso critério!

Impecável.

Step-by-step Guidance to Build a Drone From Scratch Using Ardupilot APM Navio2 Flight Controller

Simkaisheng

Ardupilot is a widely used open source unmanned vehicle autopilot software that is capable of performing many functions. Documentations and various sources have provided us with the basic knowledge of the setups and use each separate component of a drone but none has provided a detailed guide on how to put them together to build the drone’s hardware with guided steps of component setup and assembly from scratch, together with all necessary configuration and setups.
This article is written to combine all scattered information into one piece, to provide a step-by-step guidance from head to tail of how to build and assemble a quadcopter from scratch and how to perform all setup configurations required using the Navio2 Ardupilot flight controller. Other flight controllers from APM or others can also partly rely on this guide.

https://www.instructables.com/id/Step-by-step-Guidance-to-Build-a-Drone-From-Scratc/

Para o vosso Clube Motard, ou para ajudar as vossas Patroas a vender Adereços de Moda, ou Roupa, ou para ect, uma ideia bem bacana, estampar COURO com a Impressão 3D!

Cada vez melhor.

Leather Embossing With a 3D Printer!

Make Everything

In this instructable I will be going over the steps to 3d print a very simple stamp to emboss leather with. This is a great way to make custom branded products like hats and other merchandise with your own unique logo.
Below is a video that goes through the process step by step. For a detailed write up continue into this instructable for more!

https://www.instructables.com/id/Leather-Embossing-With-a-3D-Printer/

Para algo de completamente diferente, podem agora ter mesmo uma noção clara do vosso WiFi, onde quer que vão, para saberem ao que andam, em questão de Copbertura da vossa Rede...
Uma simpática e bem útil caixinha de bolso, algo a fazer em casa...

Portable WiFi Analyzer
陳亮

This instructables shows how to use a Tic Tac sweet box make a portable WiFi Analyzer.
You may find more background in my previous instructables.

https://www.instructables.com/id/Portable-WiFi-Analyzer/

Já vos falei da Vention, e agora, grande vantagem adicional, podem ganhar DINHEIRO, partilhando as Maquinetas e Engenhocas que idealizarem, nesta Plataforma.
O que quer dizer que, cada vez que alguém encomendar uma ideia vossa, vocês ganham 2,5% do valor da encomenda à Vention.
Com Armações e Projectos variados, a valer centenas e milhares de $, se a vossa ideia for popular...
Já estão a ver.

Earn Design Royalties
Sherry Wong

Professional designers can now earn for contributing to the Vention platform
We are extremely proud to release the design royalty feature, enabling designers, wherever they are located, to be compensated for designs they publish to the Vention public library.
This is a feature we had envisioned in the very early days of Vention as a way to share the success and benefits of the platform with all of our users. All of the underlying building blocks to enable the design royalty feature are now in place, and we are happy to finally make this announcement.
This is how it works: You can earn royalties of 2.5% of the design value for every design that you publish on the Vention public assembly library that is then bought by another user. Royalties are deposited in the form of credit and can be seen on your profile section on the site.
This feature is meant to encourage users to publish their designs to the public library and to foster collaboration among the community. If you are interested in viewing existing designs, you can easily browse them here by using our existing categories, searching for keywords, and/or using our Design Tags (ie. hashtags).

https://www.vention.io/blogs/73

Robots de Papel! E Inventores de Drones, um Móvel para as Ferramentas, Electricidad de pesos, e um fidget!

Robots de Papel! 
Isto é muito bem achado, da Industry News... 
Robots que se movem como Minhocas, e podem mover-se por aí, muito mais baratos, pequenos,  e fáceis de fazer.
Não vai passar muito tempo até que se faça disto por toda a parte, e nem sei se não vai alguém fazer uma espécie de micro Stepper, e daí uma micro-CNC! 

Researchers Make Robots Out of Paper 

A team of researchers from the University of Illinois Department of Mechanical Science and Engineering has made a pair of crawling robots, Peri and Poly, out of little more than a sheet of paper, a few 3D printed parts, and a handful of screws.

The researchers used origami paper folding to create cheap robots that move like earthworms.

Poly is 51 mm wide and uses a pair of origami towers that expand and contract when twisted to make the worm robot crawl forward. The robot has directional feet made of hard plastic and rubber. The 3D-printed toes allow the robot to slide forward while the rubber heal stops it from backsliding. This particular example of bio-mimicry was inspired by the setae on earthworms.

Peri is more than twice the size, and fully mobile. Peri is 106 mm wide and runs on batteries unlike the Poly, which is tethered to the power source. Peri also uses on-board controllers to navigate. 

http://news.thomasnet.com/featured/researchers-make-robots-out-of-paper

Podem pôr a Míudagem a fabricar Drones, aprendendo técnicas que os vão potenciar para um futuro emprego.
É bom!
Vem com mais de 16 Missões, mas o que é SÓ isso para um Engenhocas? As aplicações são INFINITAS!
MUÁHÁHÁHÁHÁ!

DROID™ INVENTOR KIT 

Kids can create their own custom Droid and bring it to life it with littleBits electronic blocks.
Create a Droid from scratch
Go on 16+ missions in the free app
Customize & reconfigure for new powers 

https://shop.littlebits.cc/pages/starwars

Cá está uma coisa que faz falta a todos os Engenhocas e Fabbers, para arrumarem a Tralha em que se transforma a vossa querida colecção de Ferramentas e etc.
Grátis, e para irem cortar na Fablab local, que eles quererão logo cortar umas tantas para eles mesmos!

The Amazing Tool Organizer (lasercut)jasonwelsh 

Summary
Have tools? Have a desk?  OCD?
You need this! 

https://www.thingiverse.com/thing:1813105

Da Página da Facebook, Zink, vem esta ideia muito bem-vinda, usar o velho mecanismo de pesos dos Relógios, para produzir electricidade para iluminar uma casa, em zonas sem Rede Eléctrica.

Muito Bom.

The Problem

 

Over 1.2 billion people globally have no access to electricity and millions more have an unreliable supply. Instead they use dangerous, polluting and expensive kerosene lamps for light.

A typical kerosene lamp is made by taking an empty bottle or tin can, putting a wick in the middle, filling it with fuel and lighting. Using kerosene for lighting is extremely inefficient, dangerous and expensive, and it has extensive health and environmental drawbacks.

How It Works

Combining kinetic and potential energy, GravityLight works by connecting an elevated weight — filled with rocks or sand — to a pulley system that slowly powers a generator as the weight falls to the ground. 

https://www.facebook.com/ThisIsZinc/videos/695533800647289/

Para se divertirem um pouco, fiquem com esta ideia, que é uma boa maneira de renovarem a Novidade dos Fidget Spinners:

Electromagnetic Fidget Spinner Accelerator

tanner_tech  

Fidget Spinners are little plastic toys with a bearing in the center. They are fun for a little bit, but get boring after a while due to their slow spinning speeds. There are ways to make them spin faster, but these methods involve using a bulky air compressor or an expensive can of compressed air. Luckily, I have found a cheap way to accelerate these fidget spinners to extremely high speeds with the power of electromagnetism. You can even hold the spinner in your hand while you accelerate it! I have clocked a spinner that is spinning with this accelerator at speeds up to 1440 RPM, that is fast. You can build this accelerator too, it is really cheap and really simple to build. 

https://www.instructables.com/id/Electromagnetic-Fidget-Spinner-Accelerator/

Bons exemplos: 3D para a Medicina! , Ponoko, Air-Ink, Forno a partir de Jantes, um Drone Portátil, e GetdatGadget!

3D para a medicina!
Dica de Patrick Shek, da TAKTAK 3D PRINTING CURIOSITIES.
Eis uma Bomba Peristáltica, que se pode imprimir em 3D, para Situações de Catástrofe , e Países e Regiões desfavorecidas...
Louvável.

3D printed Peristaltic pumpMarco Arduino channel

A peristaltic pump is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained within a flexible tube fitted inside a circular pump casing (though linear peristaltic pumps have been made). A rotor with a number of "rollers", "shoes", "wipers", or "lobes" attached to the external circumference of the rotor compresses the flexible tube. As the rotor turns, the part of the tube under compression is pinched closed (or "occludes") thus forcing the fluid to be pumped to move through the tube. Additionally, as the tube opens to its natural state after the passing of the cam ("restitution" or "resilience") fluid flow is induced to the pump.  

https://www.youtube.com/watch?v=fipTZJv4k18&feature=youtu.be

Isto, é um bom exemplo, da Ponoko, de como podem ganhar dinheiro, e depois vender as vossas Engenhocas, se forem feitas por meio da Ponoko...

Mas serve como exemplo, mesmo se não for feito lá, por isso, cá vai, como inspiração...

Spirograph-Inspired Maker Blasts Kickstarter Goals By 224%, Then 544%

Could a free toy in a package of candy change the trajectory of your life? For Aaron Bleackley, it did. 

It all started one day in early 2013 when one of his coworkers got a tiny geometric drawing toy when purchasing some candy. They passed it around the office and played with it. Never having a Spirograph® set as a kid, Aaron was enthralled.

This kind of drawing toy works using simple gear interaction. Just place a gear in a larger ring and use a pen to rotate the gear around the inside of the ring. The result: A multitude of interesting geometric patterns can be created.

That night, he bought a Spirograph kit. Throughout the next several weeks, he purchased several more geared drawing toys and spent his evenings admiring the beautiful designs that he made with them.

Eventually he became frustrated, however. There was a lack of variety of design options. He wanted more pieces. The plastic from which the pieces were made was fragile and imprecise. And the gears often slipped and hopped out of the rings.

“I scoured the internet for a really good Spirograph but didn’t find anything to satisfy me,” Aaron says. “So I concluded that I would have to make my own.”

http://www.ponoko.com/blog/2017/03/07/spirograph-inspired-wild-gears-crowdfunding/

Tinta, a partir do Smog?

Os vossos Automóveis, a produzir Tinta?

É uma iniciativa louvável e bem engenhosa, e mais uma vez, por Crowd-Funding...

AIR-INK: The world's first ink made out of air pollutionGraviky Labs 

While at the MIT Media Lab, we asked ourselves a simple question. How can we turn something as ugly as air pollution into something as useful as ink?
That’s how we came up with AIR-INK. 
Through this Kickstarter, we are offering AIR-INK for the first time––as safe, refillable, high-quality, water resistant markers and screen printing ink. By using 30ml of AIR-INK, you can negate 45 minutes worth of pollution. 

https://www.kickstarter.com/projects/1295587226/air-ink-the-worlds-first-ink-made-out-of-air-pollu

Um Blogue a seguir, "I save A to Z", bem Polivalente, muitos Temas diferentes.

Da autoria da Blogger Jennifer, segue a minha linha de poupar usando o que está à mão, usando mais esta ideia genial, de usar Jantes de Automóveis para este Forno de Madeira de Jardim... 

Fantástico!

DIY Wood Stove made from Tire RimsJennifer 

I absolutely love a good recycle project and today I have one that will blow your socks off.  My friend Ben created a DIY Wood Stove made from Tire Rims!  Yes, tire rims!  Sounds crazy doesn’t it?  Who would have thought you could take an old set of rims and turn it into something you can cook with?  Gives a whole new meaning to meals on wheels lol!  Way to go Ben!  You did an awesome job on this project. 

http://www.isavea2z.com/diy-wood-stove-made-from-tire-rims/

Um Drone Portátil, para levarem para onde vão, eis mais uma ideia no Kickstarter, que merece menção, um Projecto muito sério, e não um Brinquedo:

Sprite: portable and rugged. A totally different drone.Ascent AeroSystems 

Sprite is a completely different kind of unmanned aerial vehicle. Portable, rugged, powerful, and easy to use. A tool, not a toy.
Introducing Sprite™
The world's most portable and rugged unmanned aerial vehicle
Whether you’re an active outdoor enthusiast, a serious professional photographer or a commercial operator who just needs to get a job done, Sprite™ is as portable and rugged as you are.
Enclosed, compact, rugged and water resistant airframe
Well-proven, fully autonomous autopilot with GPS and inflight telemetry
Wide range of sophisticated autonomous flight modes including waypoint navigation and “follow me”
1080P high-definition video with 2-axis stabilized gimbal
Push-button interface lets you leave your tablet computer or RC radio at home
Range of up to 4 miles (more than 6km), depending on mission, equipment and environment
FPV (First-Person-View) ready 

https://www.kickstarter.com/projects/ascentaerosystems/sprite-the-portable-rugged-totally-different-small

GetdatGadget, um Site cheio de coisas boas, basta verem a imagem, que muitos de vós vão logo lá ter, só de verem este monte de Gadgets!

Da lavra de Roy Yap, um Engenhocas que adora Gadgets, e fez este Site onde tenho a certeza de que vão passar, muitas vezes...

Welcome to GetdatGadget
GetdatGadget was founded by Roy Yap, a die-hard geek and lover of all things tech and gadgets. Roy’s love for gadgets led to the creation of this site after spending most of his spare time writing tech product reviews for the past decade.
The main aim of this site is to highlight products that we find fascinating, unique, cool, awesome, drool-inducing, time-saving, space-saving, money-saving, state-of-the-art, bleeding-edge-technology, quirky, whimsical or just plain jaw-dropping.
Through this site we hope to share our love for gadgets with you, our fellow gadget connoisseurs.
Most of all, we hope that you enjoy reading about the products we feature as much as we enjoy writing about them.
We only add new products as and when we find them and are deemed worthy to join GetdatGadget’s hall of fame. After a decade of reviewing tech gadgets, it does take quite a bit to impress us, trust us. Therefore, we do not target a fix number of postings per day and neither do we post on a daily basis. It also means that on good days, we may post close to a dozen posts per day.

https://pt.pinterest.com/getdatgadget/

Impressora 3D de Bolso? E fazer Plástico com Cola, um Fórmula-1 impresso em 3D, um Drone de Vigilância, e Gás, de Galhos!

Uma Impressora 3D de Bolso, com um Preço também pequeno, eis algo de louvável, para apoiar, e ter um em casa... Ou dois ou três, conforme os Filhos!

$99 palm-sized PocketMaker 3D printer launches on Indiegogo 

While 3D printers do honestly come in all shapes and sizes, the vast majority of models feature roughly the same desktop size – with size differences usually being negligible. While the dream is always to go bigger and wider to facilitate larger prints and more ambitious projects, there’s a lot to be said for downsizing as well. Aside from the obvious benefit of making your 3D printer extremely portable, it also means 3D printing smaller, more efficient objects and optimally using your build volume. Why be tempted to go bigger if smaller means becoming more efficient? If this sounds appealing, then the palm-sized PocketMaker might be something for you. 

http://www.3ders.org/articles/20161104-99-palm-sized-pocketmaker-3d-printer-launches-on-indiegogo.html

Para além do Ooogoo, e do Sugru, podem fazer o vosso próprio Plástico, com Cola de Madeira e Talco, para peças ou moldes:

Making plastic with glue
smurray2 

This instructable is an experiment in making my own plastic using glue as the main binder material.
For this instructable you will need the following:
- PVA Glue
- Talc Powder (material to be bound)
- Mixing cup
- A harp inter-dental cleaner
- A Dremel multi
- A palette to spread samples on
- A spreader 

http://www.instructables.com/id/Making-Plastic-With-Glue/

E que tal, um modelo de carro de Fórmula 1, rádio-controlado, feito com a vossa Impressora 3D?
Cá está como o imprimirem, e montarem, e se também quizerem fazer a Electrónica, será adicionada, depois:

3D Printed 1:10 OpenRC Formula 1 car

Daniel Norée  

This is the OpenR/C Formula 1 car. It´s the third generation 3D printed OpenR/C car and this time around focus is on simplicity! You can print everything in PLA except the tires which are done in NinjaFlex! Of course you can print it in any material you like but for those that want to print a car but only have PLA at hand, this is the project for you!

This guide explains how to assemble the OpenRC F1 car. If you want to add electronics to make it radiocontrolled another step will be added later. 

http://www.instructables.com/id/3D-Printed-110-OpenRC-Formula-1-Car/

Não há campo de actividade em que não se possa usar um Arduino, ou, neste caso, um Raspberry Pi!!!
Até para terem um Drone para vigiar as vossas Propriedades, Quintas, e Casas, ou sei lá, para brincarem com o Canito, do Escritório! 

Raspberry Pi Surveillance Rover (Land Drone)

DavidDrones  

Ever wanted to have a surveillance drone to monitor your surroundings? Of course you have!

Using a Raspberry Pi for the on-board logic, this compact, mobile computer, will create a local port that streams a video in real-time while simultaneously creating Bluetooth sockets to read values sent by a custom android app. The app syncs with the drone and uses user input to send instructions to the drone instantly. This project is fairly difficult to make from scratch, so hopefully the following will make life easier and provide some insight for drone enthusiasts like myself. All the software used for this project is provided. The code used was originally written by myself, but a few lines might have come from other sources. Feel free to modify and share the code to your liking. Please use the information provided responsibly and have fun! 

http://www.instructables.com/id/Raspberry-Pi-Surveillance-Drone-Land/

Gás que pode fazer funcionar um Motor, ou até mesmo um Automóvel, a partir de Galhos, e Serradura?

Já foi feito, em tempos de Guerra!

E pode ser uma boa maneira de se ter um Gerador, ou ainda melhor, um Aquecedor de àgua, que limpa o Quintal de folhas e galhos!

LOL

Power in the Apocalypse (How to build a Wood-Gasifier)

tatebullrider 

In this Instructable I will be showing you the steps I used to build my Wood/Biomass Gasifier. It was really a fun project and I would encourage anyone serious about preparedness to build one. Now in case you don't know what a Gasifier is (and don't feel bad if you don't as very few people do lol), they are quite simple, let me explain. Essentially all gasification is, is a form of incomplete combustion, heat from the burning solid fuel creates gases which are unable to burn completely because of the insufficient amounts of oxygen from the available supply of air, it then filters those gasses(which is by weight: 20% hydrogen, 20% carbon monoxide, 50 to 60% nitrogen, and a little bit of methane) And you can really use any kind of Biomass(organic material) that will burn. You can even use things like paper, coal, peat, and lignite. You can then use that filtered gas to run any thing from a generator to a car. So now that you have a basic understanding of what gasification is, lets get down to the build!!! 

http://www.instructables.com/id/Power-in-the-Apocalypse-How-to-Build-a-Wood-Gasifi

Um Drone "segue-me" com Arduino! E uma Serra Circular custo zero, uma Secretária Grátis, Fotografia aérea por quase nada, e repelir Mosquitos!

Ora aqui está um Drone que podem fazer e casa, e que vos segue, filmando todo, e evitando obsáculos, o que vos dá uma equipe de vídeo de ter por casa, por assim dizer...

É bom! 

DIY Smart Follow Me Drone with Camera (Arduino Based)

Imetomi 

Drones are very popular toys and tools these days. You can find professional and even beginner drones and flying gadgets in the market. I have four drones (quadcopters and hexcopters), because I love everything that flies, but the 200th flight isn't so interesting and starts to be boring, so I decided that I will build my own drone with some extra feutures. I like to program Arduino and design circuits and gadgets so I started to build it. I used the MultiWii flight controller that is based on the ATMega328 chip that is also used in the Arduino UNO, so programming was pretty simple. This drone can be connected to an Android smartphone that sends its GPS data to the drone, that compares to its own GPS signal, then starts to follow phone, so if I move on the street the drone follows me. Of course has many failings yet, because I wasn't able to make a proffesional filming drone, but follows the phone, makes a video and also has a ultrasonic distance sensor to avoid the obstacles in the air. I think this is pretty much features from a homemade drone. As soon as possible I will load up a video about a flight, but it is hard to make good quality records with an always moving drone.

http://www.instructables.com/id/DIY-Follow-Me-Drone-With-Camera-Arduino-Based/

Uma ideia do nosso amigo Andrea Biffi, que ainda vou construír cá para casa, uma bacana duma Serra Circular para cortarem, a direito, uma data de placas e pecinhas variadas, que uma Serra de Disco, é um bicho que leva tudo à frente...

E agora, com a possibilade de opcionalmente, ter um Disco Lixador:

mini circular bench saw from scrap [UPDATED]

andrea biffi 

Try to salvage little electric motors from scrap, because you can usually find a way to reuse them. I don't remember where this motor comes from, I've got it many years ago when I used to dismount everything I bumped into, anyway when I found it the other day I immediately pictured a small bench saw to cut metal. Not wood, because motor has a belt and a ratio so that the gear turns at a speed of about 600-1000 RPM which is good for metal, bricks, stones but wood needs very fast speed. To cut these materials you can use a disc grinder, so I bought a pair of discs to apply to my motor.

[UPDATE] I also can apply a disk of sand-paper if needed. To check speed of the disk see last step.

http://www.instructables.com/id/mini-circular-bench-saw-from-scrap/

Vejam lá se se conseguem ainda desculpar de não terem uma Secretária decente, (ou uma que aguente muito mau-trato), se o Material para esta, são as Paletes que encontram aos pontapés, por aí!

Reparem nos espaços abertos para ventição, para lá meter, no encaixe, um Computador, à direita: 

How to build a Desk from Pallet Wood

StephenS161 

All those pallets that are thrown away....maybe they are worth their weight in gold? Seriously, is that free wood one could avail of? And recycling is good for the environment too!

So I decided to construct a desk from pallets that were going to be thrown away. This desk is intended to house a computer in the future so it has a cabinet with holes that will act as air vents. To add some style, instead of the usual plane panel as a side/leg, a mesh design is being used.

The desktop has holes to allow wires through the surface and conceal them under the surface. Instead of the usual circular holes, the word "DAD" has been routed through so as to also serve as a dedication to my father who introduced me to DIY :)

So, this instructable shows how to create a desk from pallet wood, let's go! 

http://www.instructables.com/id/How-to-Build-a-Desk-From-Pallet-Wood/

Hoje, estamos no reino da Poupança, com mais esta ideia, um Papagaio de Papel que vos permite fotografar uma grande Àrea em redor, sem sequer precisarem dum Drone: 

Aerial Photography Super Affordable Kite

hertzgamma

 

Hi everyone!

Here is a very fun and super easy to build tutorial on a kite that will take a camera up in the sky and let you snap those aerial photos you’ve always dreamt of. The kite actually costs pennies to make but is very effective in what it does!

It’s good fun to learn about aerodynamics rather than some rocket science stuff that will bore you to death if you aren’t already an expert in engineering.

So all you kids, makers, creators, hackers, grandmas, grandpas, enthusiasts and of course rocket scientists – follow myjourney and make yourself a kite like this!

P.S. I don’t like much text so feel free to scroll and look through all the pictures – they are really explanatory and give you everything you need to make a kite yourself!

 

http://www.instructables.com/id/Aerial-Photography-Super-Affordable-Kite/

Mas como nem tudo no Verão são coisas agradáveis, cá vai este Instructable para se livrarem dos implacáveis Mosquitos!

Uma boa ideia. 

Arduino Mosquito Repeller

webgeeks 

In this instructable I'm going to show you how to build a mosquito repeller using an Arduino. The repeller is in the form of a shield that plugs into the Arduino board and the frequency of the repeller can be changed easily.

This project is ideal if you are going camping or hiking outdoors, this device produces a sound of 31KHz Frequency which acts as a mosquito repellent. The frequency of this device can be adjusted and at 23kHZ to 54 kHz it also acts as a dog whistle. Human ears are not sensitive to these frequency ranges.

You can also view the video below on how to build this project. 

http://www.instructables.com/id/Arduino-Mosquito-Repeller/