Aprendam! Cursos Tech às Pázadas, e Design para Impressão 3D. E um Quadrópode Pololu-Arduino, imprimir Metal mais rápido, e consertem a Honda!

Um Site de onde podem aprender online, actualizar-se e testar o vosso nível de conhecimentos, e ainda por cima, com um Trial Grátis, é de lá ir a correr!
E isto com uma catrefada de Cursos, que podem ver, abaixo...
É muito bom.

Welcome to Pluralsight. The on-demand technology learning platform you count on to stay relevant, with tools that measure your skills and solve your problems—faster. 

OUR MISSION: TO DEMOCRATIZE PROFESSIONAL TECHNOLOGY LEARNING

We believe everyone should have the opportunity to build a career they’re passionate about. We’ve gone beyond the traditional education model to put the power back in your hands, because we believe learning shouldn’t be confined to a classroom, rigorous schedule or select minority.

https://www.pluralsight.com/

Uma profissão de Futuro, certamente, será o Fabbing, e Designers que saibam desenhar em 3D, e ainda por cima com conhecimentos que os capacitem para a Impressão 3D do que criam, vão ter uma vantagem adicional...
Por isso, se puderem investir 2.695€ neste Mini-curso de 3 dias, é de arriscar:

Learn About Design for Additive Manufacturing with Wohlers Associates

Hanna Watkin 

Wohlers Associates and Materialise are offering a three-day course in design for additive manufacturing (DfAM) in Leuven, Belgium.

Would you like to learn more about designing for 3D printing? Consulting firm Wohlers Associates have teamed up with additive manufacturing specialists Materialise for a special course teaching valuable skills.

The three-day course is called Design for Additive Manufacturing (DfAM), and is intended for people who work in aerospace, automotive, medical, and industrial machinery.

The course will cost €2,695 for three days. This price includes both instruction and hands-on learning, as well as refreshments. It will take place at the Materialise headquarters location in Leuven, Belgium from May 31st to June 2nd, 2017.

“We are very happy to collaborate with Materialise, a company with an outstanding reputation and extraordinary track record,” said Terry Wohlers, principal consultant and president of Wohlers Associates. 

It will be the third such course from Wohlers and co; which was previously offered at the NASA Marshall Space Flight Center. 

https://all3dp.com/additive-manufacturing-wohlers-associates/

Cortesia da Pololu, eis um projecto que prova que se podem construír Protótipos e Projectos de Pesquisa bem sérios, com os Kits da Pololu, e o Arduino!

Semi-autonomous 14-DOF quadrupeds using Mini Maestro

Ryan 

Customer Lujing Cen’s team built two semi-autonomous 14-DOF quadrupeds using Mini Maestros for their high school class project at the California Academy of Mathematics and Science. The project syllabus includes making two separate robot designs and three total robots that work together. These quadrupeds were the “pack robots” described in the syllabus. An 18-channel Mini Maestro USB servo controller controls the twelve leg and two head servos. The project code includes a rewrite of Pololu’s Maestro C# USB SDK library in Python. The robot uses a camera and an RFID scanner to track its targets. 

https://www.pololu.com/blog/680/semi-autonomous-14-dof-quadrupeds-using-mini-maestro

Tinha alguém de pensar nisto, e os bacanos da Universidade do Arizona, e da Pensivânia, pensaram, então, porque não imprimir em Metal com estruturas de suporte solúvies, com n Impressão 3D de Plástico?

E foi o que fizeram:

Metal 3D Printing is About to Get Faster Thanks to Dissolving Supports

Hanna Watkin

An assistant professor at Arizona State University has developed a method of printing dissolvable metal support structures. This breakthrough could make end-to-end metal printing faster.

Metal 3D printing is fast on its way to becoming a mainstay option for heavy duty industrial 3D printing. But, it can be a laborious process involving copious amounts of post-processing.

However, an assistant professor of 3D Nanofabrication at Arizona State University (ASU) might have a solution. The man behind this development is Owen Hildreth., who has a mechanical engineering degree and Ph.D. in nanofabrication materials engineering.

However, he didn’t turn his mind to it until dropping in on a talk by visiting professor, Timothy Simpson, who posed: “If anyone knows of a water-soluble metal we could use for metal AM support structures, talk to me afterwards.”

Simpson is a research professor at Pennsylvania State University’s Center for Innovative Materials Processing through Direct Digital Deposition. 

https://all3dp.com/metal-3d-printing-get-faster-thanks-dissolving-supports/

Ora está algo de diferente, para acabar, por hoje, como consertar os assentos das vossas Motas, principalmente as que são Clássicos, ou seja, caríssimas de reparar:

Vintage Motorcycle Seat Restoration - CB200

bekathwia  

This Instructable is about creating a new seat for my motorcycle, a 1975 Honda CB200T.

I picked up a trashed old seat on eBay because my current seat is in good condition, and there's no sense in tearing apart a perfectly good seat. Plus then I wouldn't be making my bike inoperable while working on this project.

The main reason I wanted to change my seat is to lower standover height, since I'm extra short. I also welcomed the opportunity to customize any aspect of my bike, since I am a motorcycle beginner.

If you are new to sewing, check out Mikaela's Machine Sewing Class and Jessy's Hand Sewing Class to get up to speed on the basics.

https://www.instructables.com/id/Vintage-Motorcycle-Seat-Restoration-CB200/

A vossa própria Cortadora, DIY Laser CNC! E 16 modos de bem imprimir em 3D, uma Impressora 3D por 75 Dólares, outra, económica E rápida, e mais outra, enorme, mais um Órgão-Caixa de Música!

Em vez de gastarem uma Fortuna, apostando, às cegas, numa Cortadora Laser CNC Chinesa, que parece barata, até terem de pagar as Tarifas Extorcionistas da Alfândega, façam mas é esta pequena maravilha, que fica por menos, e é algo que vos vai ser bem mais ùtil...

Bravo!

Make Your Own High Quality CO2 Lasercutter! With Touch Control!MichielD99 

Hello everybody
About a year ago, I wanted to buy a CO2 lasercutter to make my workspace complete. One problem was that lasercutters aren't cheap, especially not for hobbyists who want a large cutting area. Of course, for that price you also get awesome software and customer support when you buy a lasercutter, but I only turned 17 when I started this project and I just didn't have that money. That is why I built my own machine. I had already made a machine like this, so I thought: "Why not do it again?". Of course this one wouldn't be made out of MDF sheets.
I made this machine together with my friend Thibo as it was our integrated project for school (we are in our last year of industrial sciences). He focussed on the research about lasers and cutting with a laser, because it's amazing that you can cut objects just by using light. I focussed on building this machine. In this instruction, there will only be talked about the lasercutter itself. This is a full step by step instruction on how to build your own lasercutter! I've included every file you need for building it in this instructable.

https://www.instructables.com/id/Make-Your-Own-High-Quality-CO2-Lasercutter-With-To

Imprimir em 3D, não sai sempre uma maravilha...

Mas isto ajuda!

16 maneiras da vossa impressão saír bem, e económica, e resistente, cortesia da all3dp, a aior parte grátis, todas uma boa maneira de não perderem a paciência, com as vossas pobres Impressoras, que não têem culpa...

16 Best 3D Slicer Software Tools for 3D Printers (Most are Free)

Anatol Locker 

Do you want to get the best results from your 3D printer? Here are the best 3D slicer software tools – most of them are free.

At the end of this guide, we answer some essential questions about 3D slicer software:

• What does a 3D slicer software do?
• Why is a 3D slicer software so important?
• What separates a good 3D slicer software from the bad?
• What are the best 3D slicer settings? 

https://all3dp.com/1/best-3d-slicer-software-3d-printer/

Uma Impressora 3D de qualidade, por 75 Dólares, é o que propôe Tarkun Gelstronic, neste seu projecto, e uma Impressora de qualidade:

Man Creates a 3D Printer for Under $75 - And you can too!Monica Aderholt  

It was just last week that we saw the cheapest assembled 3D printer become available to consumers around the world. That was when New Matter’s MOD-t 3D printer launched their Crowdfunding Campaign. Priced at $149 for the first 500 backers, $199 for the next 500, and $249 for the rest, it proved that 3D printers could be cheap enough for most consumers to at least consider purchasing.
One man, by the name of Tarkun Gelstronic has taken this a step further. He put himself out on a mission to create a 3D printer for less than $100. What he came up with was really quite amazing.  Gelstronic didn’t just want to create any 3D printer that he could; he wanted to create a quality 3D printer that could print in multiple materials and include a heat bed.

https://3dprint.com/4903/3d-printer-under-75-dollars/

Uma Impressora 3D enonomica E rápida, ora aí está algo de muito bom... Até a 1 Metro por segundo!

Não será para qualquer um para construír, mas por isso mesmo, é completamente expansível e flexível, vejam se é para vocês.

Cheap 3D Printer Pops Out Parts With Blazingly Fast Speed

James Mulroy 

The ORD BOT is a simple 3D printer platform kit that uses an extruder to "print" 3D objects, just like the Cube or the MakerBot. However, unlike the MakerBot, the ORD BOT can only print using one color at a time (for now, anyway). But what it lacks in color it gains in speed: Its print speeds exceed 400mm per second and can reach up to a whopping 1 meter per second. This is considerably faster than the MakerBot's output speed of 33mm per second. The ORD BOT comes with two different print areas with the largest, called the Hadron, being about 200 square milimeters.

Now the ORD BOT isn't for just anyone--it's made with serious makers and DIYers in mind. This platform kit is just that--a platform: You have to provide your own electronics and build the whole thing from scratch (this does make it highly customizable and flexible), but according to a spokesperson at the ORD BOT booth you can order one with the electronics included for about another $200. 

http://www.pcworld.com/article/255867/cheap_3d_printer_pops_out_parts_with_blazingly_fast_speed.html

40, por 40, por 40 Cm de Volume de Impresssão, é muito bom!

Vejam o Instructable desta, com vídeos e tudo:

D Printer - Working Area 40x40x40cm

Thomas Workshop 

Hello everyone, in this project I want to show you how to make a 3D Printer.

I always wanted to have a diy 3d printer. The easiest way to make it is print frame parts and coonnect it with aluminium profiles or somethink like that. But I didn't have acces to any 3d printer. So, I used my cnc machine to make all nessesery parts and when 3d printer was almost assembled I printed plastic parts whitch were hard or imposible to make on cnc machine. And now i have a 3d printer with working area around 40x40x40 cm :)

I made a video and step by step instruction how to make it.

https://www.instructables.com/id/3D-Printer-Working-Area-40x40x40cm/

E terminamos esta viagem pelo Mundo 3D, com este encantador Órgão, que é uma Caixa-de-Música, ou será, Caixa-de-Música, que é um Órgão?

De qualquer maneira, é uma Engenhoca porreira de montar e admirar:

Four Whistles Version 2gzumwalt 

Four Whistles Version 2 is my first attempt at a "calliope" (well, sort of calliope) design utilizing the primitive knowledge I gained from the original Four Whistles Instructable (https://www.instructables.com/id/Four-Whistles/). Not being a musician and being "slightly more than hard" at hearing, while it may not sound like it this model is attempting to play "Mary Had A Little Lamb" using a balloon to power the whistles and a hand crank to power a cylindrical sequencer.
In order to play "Mary Had A Little Lamb", I incorporated four whistles in the design of this model, each controlled by one of four air valves. Each of the air valves are controlled by a rotating cylinder containing small 2.5mm "bumps" that activate the valves in the correct sequence (the "cylinder sequencer"). In order to minimize air loss and maximize play time, I designed the valves with a 3 degree preload (to increase the compression of the valve gaskets on the valve body valve plates), designed the valve "axles" using a virtually airtight membrane with torsion bars, and as a last defense against air leaks, used clear silicon caulk to seal the valve body assembly (see below). The caulk is not necessary, but will assist in producing a marked improvement in the models performance. 

https://www.instructables.com/id/Four-Whistles-Version-2/

Gauss gun, and a 3D Freebie! Sim, uma Ideia e um Ficheiro 3D grátis!

Ora cá vai uma maneira de melhorar as Gauss Gun, esses Brinquedos Magnéticos que pareciam que já tinham tudo pensado...

Mas não!

Um Íman de Neodímio, é um Íman muito frágil, se for forte, a sua própria força o vai destruír, mais tarde ou mais cedo...

È, ainda por cima, preciso pegar na esfera de trás, depois de se ter disparado, colocá-la à frente, e só assim se pode re-começar.

Esta versão, ideia minha, pemite-vos disparar, mover uma esfera para a frente, disparar, até se fartarem.

E não partem o Íman. 

Mas, como se isso não fosse o suficiente, podem, ou fazer a coisa em casa, ou mandar imprimir em 3D:

Repetition Gauss Gun

Edgar

Gauss guns, those roller bearing ball shooting magnetic toys, fun as they are, suffer from the limitation of having to re-configure all the elements for each shot.

And, too strong Neodymium magnets may be destroyed by those hardened steel spheres, because they are directly impacted.

Not good.

So this is my solution, first, the magnet is out of line with the balls, and second, the balls have a no-return latch, so, all you have to do, to re-set the thing, is to move the balls forward.

Neat, huh? :)

And the Latch uses a small steel or iron part, a bolt, etc. in that hole, there, so you don't need to add any spring to keep the latch down, see the second picture:

Don't want to make it?

You can have it 3D printed:

Sculpteo print and ship service

A 3D printed file is available here:

https://www.instructables.com/id/Repetition-Gauss-Gun/

Imprimir A CORES, na vossa Impressora! E o Zero Terninal, tricotar a 3D(!), um Sistema de Segurança Pi, e rodízios retractáveis!

Uma das tais ideias que são simples...

Mas só DEPOIS de se lá chegar!
Dica de Helga Pushkina:

Imprimir a cores, multi-materiais, numa só cabeça de Impressão, sim, sem mais do que uma Cabeça de Impressão, com a Impressora que já compraram?

Fácil... 

Se se cortar, e enviar, por sequência, de N Bobimas de filamentos diferentes, uma série de segmentos, conforme a impressão decorre!

Tempo para levar a mão à testa e dizer, "porque é que eu não pensei nisto?"

Palette takes up to four filaments and combines them into a single filament strand. This strand is then fed to your printer, enabling your one extruder printer to create multi-filament prints! 

HOW IT WORKS

• Drive: Palette’s all-metal drive systems, inspired by those on industrial FDM machines, accurately controls filament to ensure the right lengths are driven from each input.

• Cut: A rotary cutter system slices filament to ensure a clean, low-resistance cut, time after time.

• Connect: Palette’s patent-pending splicing system connects filaments together end-to-end before passing them through a machined Teflon channel and splicing them together.

• Cool: Combining both active and passive cooling systems, your newly spliced filament is re-hardened to ensure it keeps tight dimensions before being passed to your printer.

• Calibrate: Our patent-pending synchronization systems continually monitor and adjust for filament usage, allowing Palette to modify filament lengths to ensure perfect calibration over thousands of feet.

https://www.mosaicmanufacturing.com/

Para os Geeks e Coders, ora aqui está um belo dum Projecto a seguir, acessível, e um Computador portátil por mérito próprio, com Linux lá dentro:

Zero Terminal is a Tiny Linux PC in a 3D Printed Case

Bulent Yusuf 

The Raspberry Pi Zero W is a computer with wifi and Bluetooth that’s the size of a stick of gum. It’s cheap, cheerful, and staggeringly significant in democratizing computing. But you still need to hook it up to a monitor and keyboard to make use of it.

Enter the Zero Terminal, created by a mysterious character known only as “Node”. This homemade project combines the Pi Zero W with a slide-out QWERTY keyboard, touchscreen display, and a 3D printed shell. The result? A small, all-in-one computer that’s both portable and usable.

The PC runs stock Raspbian, which is a Linux operating system for the Raspberry Pi. The limited processing power of the Zero W means operations like running a web browser are slower than molasses. For basic tasks like working in the command line, meanwhile, or even word processing and running games in an emulator, the Zero Terminal should be adequate. 

https://all3dp.com/zero-terminal/

Mais uma ideia insólita, tricotar em 3D!

Porque pode tricotar em CNC, de forma a imprimir uma Camisola, por exemplo, e não só linearmente.

Vai ter futuro...

Ready-to-knit meets ready-to-wear: Kniterate is the new 3D printer for knitwear
Julia

Kniterate, the 3D printer for Knitwear, has taken Kickstarter by storm with its new crowd-funding campaign. The digital knitting machine, which first crossed our radar back in June 2016, has recently resurfaced, catching the eye of design bloggers, knitters, and knitwear enthusiasts alike. And all the buzz may be just what Kniterate needs to hit the market: with almost $250,000 already pledged, the Kickstarter campaign has more than doubled its initial goal of $100,000.

http://www.3ders.org/articles/20170403-ready-to-knit-meets-ready-to-wear-kniterate-is-the-new-3d-printer-for-knitwear.html

E se já estão sem mais ideias sobre o que hão-de fazer com um Raspberry Pi, que tal, um Sisteme de segurança para as vossas casas?

R-PiAlerts: Build a WiFi Based Security System With Raspberry Pis

imjasonc  

While working at your desk, suddenly you hear a distant noise. Did someone just come home? My car is parked in front of my house, did someone break into my car? Don't you wish you got notification on your phone or at your desk so you can decide whether or not to investigate? Well question no more! R-PiAlerts is here!

What is R-PiAlerts?

R-PiAlerts is a Raspberry Pi3 based security system built around Firebase's Cloud. If movement is detected, the system will notify the user of a potential break-in with a text message and a blinking LED display (silent visual alarm of sorts). Once user receives a notification, he or she can investigate. All detected movement will be logged to the Firebase database. Besides viewing the movement log on a web browser, the user can also access the movement log via an iOS app. I decided to build this due to the recent rise in break-ins to both vehicles and homes around my area. 

https://www.instructables.com/id/R-PiAlerts-Build-Your-Own-WiFi-Based-Security-Syst/

...E termina-se com este Projecto, que vos permite construírem os vosso próprios rodízios retractáveis, para mesas que podem re-colocar em qualquer parte, mas que ficam fixas, quando no sítio que querem, mas também podem apreciar um pouco da metodologia que este nosso amigo usa para fazer estas e outras Engenhocas:

How to Make Retractable Casters!

Marsh  

Like many makers, I have a lot of everything except space. To make things more accessible, I put everything on wheels. My tablesaw was a real problem until I saw retractable casters on a work bench. Once I saw how easy they were to make, my mission was clear. 

https://www.instructables.com/id/How-to-Make-Retractable-Casters/

3D, auto-suficiência, faça você mesmo, faz você mesmo, home made, fabricação, fabbing, Impressoras 3d, raspberry pi, instructables, tecnologia,