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

Arno1978  

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 www.instructables.com 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. 

http://www.instructables.com/id/CNC-Laser-Cutter-Journey/

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!

Espantoso! 

Cortesia deste Blog, o Nerd 360 graus:

http://ner360graus.blogspot.pt/

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!   

http://emailing.traceparts.com/partners/Spirol/2015/151203/Coiled-Spring-Pins-Catalog-eMail_sliced_20Jan2016-2.html

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.  

http://uk.rs-online.com/web/p/processor-microcontroller-development-kits/9139999/

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

3DHotpants 

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. 

http://www.instructables.com/id/How-to-Design-a-3D-Printer/

Caixas à medida! E mais um Controlador Programavel, conheçam as vossas Fresas, pCLinuxOS, e molas em Fibra de Vidro!

Podem mandar fazer as vossas Caixas, à medida, uma ou muitas, e isso é uma boa notícia para Inventores, Fabbers, e Engenhocas de toda a espécie...

Dica da Designspark:

NEW! Custom Cases from RS Components
Connector Geek

DesignSpark is proud to be able to offer a truly ground-breaking initiative to it's members - Custom Cases. Customers can specify a plastic case entirely to their own requirements and order as many or as few as they need. Let's have a closer look at this new product.
One of the big moments of any new project is turning the design that exists on paper (or on your computer screen) into reality. Some parts of the process are easy - prototyoing PCBs has never been easier, for example - but other parts can be really expensive. Let's take a look at enclosures. How can you best create a working prototype, with its case, without breaking the bank?

http://www.rs-online.com/designspark/electronics/eng/knowledge-item/new-custom-cases-from-rs-components

Da Mindsets vem este Controlador programável, bem pequeno, que vos poderá ajudar a fazer de tudo um pouco, e consome bem pouco.

Pode ser usado tanto por Geeks, como inciados, o que é sempre bom:

THE NEW CRUMBLE CONTROLLER

 This truly game-changing device opens up countless possibilities for ‘embedded intelligence’ as required by the new national curriculum.
What makes it unique is the much lower cost than comparable devices and the ease of use.

Non-electronics experts can use it right away BUT also offers great potential for advanced users. 

http://www.rs-online.com/designspark/electronics/eng/knowledge-item/new-custom-cases-from-rs-components

As Fresas CNC só são úteis... 

Se conhecerem as Ferramentas de Corte delas.

Da Inventables, vem este Artigo para vos esclarecer, que vos permite escolher a Ferramenta certa para cada caso.

É bom!

Milling 101: Understanding Milling Bits
jeremy
 

Choosing the right milling bit for the job at hand can be an extremely important factor in whether a milling project comes out amazingly, alright, or not at all. Combine that with having more choices of bits than materials, and choosing the right bit can be quite a difficult task. However, by answering a simple set of questions, you can greatly simplify your choice of bit. Here are the things you need to ask:

• What material am I cutting?

• What is my machine capable of?

• What shape am I cutting?

Let’s quickly go through each of these and what they mean.

http://blog.inventables.com/2014/07/milling-101-understanding-milling-bits.html

 

Se já se fartaram daquela ideia funesta da Ubuntu, de quererem macaquear os Apple, e sobretudo, de fazerem de computadores pessoais a sério, I-pads idiotas, podem mudar para o PCLinuxOS, que é de onde vos mando estas linhas.

É mais rápido do que o Ubuntu;

Mais simples;

Instala TUDO à primeira;

E não se pôe com esquisitices, como querer fazer de PCs de trabalho, I-Pads idiotas, como o malfadado Unity, do Ubuntu!

 

About PCLinuxOS

What is PCLinuxOS?

PCLinuxOS is a free easy to use Linux-based Operating System for x86 desktops or laptops.
PCLinuxOS is distributed as a LiveCD, and can also be installed to your computer. The LiveCD mode lets you try PCLInuxOS without making any changes to your computer. If you like it, you can install the operating system to your hard drive. Locally installed versions of PCLinuxOS utilize the Advanced Packaging Tool (or APT), a package management system (originally from the Debian distribution), together with Synaptic, a GUI frontend to APT for easy software installation. PCLinuxOS has over 12,000 rpm software packages available from our software repository.

http://www.pclinuxos.com/about/

 

E isto interessa aos Fabbers e Inventores, porque já se sabe que, se hoje é só a Audi a fazer disto, vai aparecer um Inventable, dentro em pouco, para nós mesmos fazermos as nossas molas...

EM FIBRA DE VIDRO!

Pensem bem:

Mais baratas e fáceis de fazer, mais leves, resistem à Corrosão, e com as propriedades que quizerem que elas tenham?

Geeks, mãos à obra!

Audi set to cut vehicle weight with introduction of fiberglass springs

Scott Collie

The quest for ever-greater fuel efficiency is driving auto manufacturers to extreme lengths to reduce the weight of their vehicles. Aluminum, carbon fiber and fiberglass are all being used to help meet stringent emissions standards. In its search for "enlightenment," Audi has announced it will introduce glass fiber-reinforced polymer (GFRP) springs in its vehicles before the end of the year.

The core of the spring is made up of fiberglass strands, impregnated with epoxy resin and twisted together. Audi then uses a machine to wrap additional strands of fiberglass around the core and cures the unit in an oven. The strands are wrapped across each other at a 45-degree angle, to allow the load to be equally distributed across the whole spring.

http://www.gizmag.com/audi-gfrp-fiberglass-springs/32795/

Makercase! E Tiling, no Laser CNC, mais a Pololu, e belas Revistas Italiansas....

Makercase é bacano!

Escolhem as medidas da vossa caixa, medidas interiores, ou exteriores, a espessura da placa, e o Método de encaixe, e zás, este App online calcula-vos a Caixa, e podem fazer o download do Ficheiro SVG...

Até com buracos, redondos, ou quadrados, e juntar texto para gravar, e tudo!

Basta para isso, carregar 2 vezes na face que queiram modificar.

É bom!

About MakerCase

MakerCase is a web-based application for designing laser-cut project cases.
Makercase runs in a web browser and automatically generates a blueprint for laser cutting based on the users specifications. The user enters the desired case dimensions and material thickness, and MakerCase automatically generates a three-dimensional model of the case that can be freely rotated.
MakerCase lets users create cases with flat edges or interlocking edges using finger joints or t-slots for retaining nuts and bolts.
Users can also add holes and engraved text to individual faces of the case using a graphical drag and drop editor.
When the case design is complete, the MakerCase flattens the three-dimensional model into blueprint and generates an SVG file that can be sent directly to a laser cutter. For cutting, MakerCase can be configured to compensate for the beam width of the laser and convert any engraved text into vector paths.
Makercase was written in 100% javascript, using jquery, three.js, and JCanvas on the client side and node.js on the server. More information on writing digital fabrication applications may be found at my web site .

http://www.makercase.com/

 

O nosso amigo Jon Cantin, vai-vos demonstrar aqui como fazer na fresa CNC, desenhos MAIORES que a Àrea de Trabalho...

Pelo Tiling, ou seja, cortando o vosso Desenho em 2 ou mais desenhos com a dimensão da Àrea de Trabalho, e avançando a Placa na profundidade, de cada vez que uma porção está cortada.

Observem:

Shopbotting a Sydney Harbour Bridge: Proof of Concept

My first tiling project, works great... lots more big stuff in the works thanks to my ShopBot Desktop! http://CNCKing.com distributes AI, CDR, EPS, DXF, STL, DAE, PartWorks and PDF files and scaled measurement free templates.

http://www.youtube.com/watch?v=OpHUOQoFWI4

 

E a Pololu tem mais uma porção de coisas novas, como este controlador para os seus micro-motores, que vos transforma assim os motores em Steppers.

Vão ao seu Update, para ficarem a par desta, e mais 3 novidades:

Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V

Overview

This set includes sensor boards and reflective wheels to add quadrature encoding to two micro metal gearmotors with extended back shafts. 3-tooth and 5-tooth encoder wheels are included to provide options of 12 counts per revolution and 20 counts per revolution of the motor shaft (to compute the encoder counts per revolution of the gearbox output, multiply by the gear ratio). Because the encoder board outputs are direct phototransistor outputs, some signal conditioning is often necessary between the sensor and a digital system processing the signals.

http://www.pololu.com/update1310

Eis umas belas dumas Revistas Italianas, sobre uma data de assuntos de Engenhocas...

Leiam e assinem, vejam só, os Mundos da Chapa Metálica, Plástico, Arame, como em Molas, etc. Máquinas-Ferramentas, e Transmissão de Energia:

Technical skills and creativity, typical of Italian companies, are renowned worldwide. To tell these excellences, Tecniche Nuove Editorial Group publishes a series of technical specialized magazines that meet the training and information requirements of all professional categories operating in the manufacturing industry.

The magazines, originally in English language and available online, can be read in all world languages thanks to a fast and simple translation system. Inside, the reader will find news, technical articles and in-depth studies on the most advanced machining methods and technologies. With the "world" magazines by Tecniche Nuove the machining world has no secrets. Browse at once the magazine of your interest and subscribe. Who gets updated is worth more! 

http://promo.tecnichenuove.com/dem/tn/index.html

Instructables!

...Como fazer Molas!
http://www.instructables.com/id/Make-your-own-springs-in-seconds/?ALLSTEPS

Para o FRIIIIIIO, como fazer o vosso Touch Screen funcionar com as luvas:

http://www.instructables.com/id/Making-A-Glove-Work-With-A-Touch-Screen/

...E por hoje é tudo, luzes de indicação de WC ocupada, e Interruptor automático!


http://www.instructables.com/id/Bathroom-Status-Indicator-Lights-and-Automatic-Swi/



.

Molas, quem quer saber tudo sobre molas?

Ninguém me paga para dizer isto, mas se querem comprar molas, (e isto serve para qualquer outro componente), vão a lojas que têem catálogos online de jeito!

Isto é que é QUERER VENDER!
No catálogo, ensinam-vos o que quer dizer todo aquele jargão técnico, e assim, compra-se com confiança!


Só porque fui bem atendido online, aqui vai o link do catálogo da firma SPEC:
http://www.asbg-spec.com.br/catalogue.shtml
E o Site em Português:
http://www.asbg-spec.com.br/

Assim, sim!


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