Corte Laser, na Impressora 3D! E DLP acessível, Espelhos poderosos, 3D transparente, e soldardeira de bolso!

AVISO

Devido à cada vez maior Censura, muitas vezes descabida, da Facebook, apagarei a página Engenhocas.
E aproveitei para mudar o Link, que era, aparentemente, difícil de decorar. 

TOMEM NOTA DESTE NOVO ENDEREÇO,

https://gizmosandstuff.blogspot.pt/ 

E PASSEM PALAVRA!




Que tal, terem um Laser na Impressora 3D?
Esta é a proposta da Endurance Lasers, que capacita uma simples Impressora 3D a cortar e gravar, fazendo das vossas máquinas, multi-máquinas! 
Vem com um Teste de Calibração do Foco do Laser, e é uma muito boa ideia.
Vejam o Vídeo, abaixo:

Get a discount as Endurance Lasers put metal engraving to the test

Beau Jackson

Endurance Lasers gives makers the ability to upgrade 3D printers, CNC routers and other DIY machines with multi tool functionality. By installing a laser diode, these machines become cutting tools and engravers, capable of writing on acrylic, wood, leather and metal, maximizing workshop productivity.
The lasers can be installed on any 3D printer or CNC machine to extend capabilities.
Read on for an exclusive discount.

The 8.5W+ laser, exclusively available to order from the company’s website, is the second most powerful diode in Endurance Laser’s arsenal. Providing “infinite continuous power,” the 8.5W is capable of writing on all manner of surfaces, from stone and wood to leather and sheet metal.
In a series of Endurance experiments, we see how the 8.5W+ makes short work of matte & hard steel, and glossy & composite aluminum.

https://3dprintingindustry.com/news/get-discount-endurance-lasers-put-metal-engraving-test-131135/

Não hajam dúvidas, a Impressão DLP é o melhor que há, em fidelidade ao Modelo 3D.

Este Modelo, até é melhor que os anteriores, porque em vez dum Laser a andar, usa uma Imagem por camada, e são camadas ínfimas, o que, claro, dá numa fineza de acabamento, de fazer chorar as pedras da calçada... E a menos de 500 Dólares!

Mas, menos de 500 Dólares, também significa um volume máximo de 11,5 x 6,5 x 15,5 Cm, e atenção, há uma cura do Objecto a fazer, e limpezas a executar, porque isto de resinas, é mesmo assim.

Anycubic Photon Review: A DLP 3D Printer For Less Than $500
Anatol Locker

Too good to be true? Not at all! Read our Anycubic Photon DLP 3D printer review and follow us on the journey from unboxing and assembly to the first prints.
As far as low-cost desktop DLP 3D printers go, the new Anycubic Photon DLP 3D Printer has emerged as one of the most appealing options on the market. Anycubic has a reputation for building reliable and affordable printers like the Anycubic i3 Mega FDM 3D printer. When it comes to the price, the Anycubic Photon is no exception – it’s one of the cheapest DLP 3D printers out there.

Don’t miss: 20 Best Resin (SLA/DLP) 3D Printers 2018
We recently got our hands on the Anycubic Photon, and decided to give it a test run. Although this isn’t a full-fledged review, we wanted to document our first experience with this unique 3D printer, as well as the unboxing and assembly process. We will continue to update this review as we get more familiar with this beastly little machine.

The Anycubic Photon DLP 3D printer is generating some serious buzz across the community, and for good reason. Priced right around $450, this machine is a potential game-changer for the SLA/DLP desktop 3D printing sector. But talk is cheap; we wanted to see this 3D printer in action.

https://all3dp.com/1/anycubic-photon-3d-printer-review/

Querem um Espelho para queimar coisas com a luz do Sol?
Muáháháhá!

Mas também pode servir para Telescópios de Reflexão, e o que mais for de Óptica, esta ideia fenomenal, de usar espelhos acessíveis, de Camião, que são convexos, e utilizar A PARTE DETRÁS, removendo a tinta protectora, para obter...

Um espelho Côncavo!
E como nessa parte, não há vidro, a potência de reflexão é ainda maior.
Muito bom. 

How To Make Solar Concentrating Mirrors (super HOT focal point)

NightHawkInLight

In this video I show how to convert inexpensive truck mirrors into powerful first surface solar concentrators. Check out my sponsor Brilliant for a really fun way to learn! https://www.Brilliant.org/NightHawk First surface mirrors are an extremely efficient way of concentrating solar energy, much more efficient for their size than a fresnel lens. This type of mirror is also essential for optical applications. Check out the video about making first surface mirrors over on GreenPowerScience: https://youtu.be/IaEaaeajCSI

https://www.youtube.com/watch?v=cWnykMRKQl0&attr_tag=mFG4pBHyfVXOTmud-6

Isto é muito, muito útil!
Objectos 3D que podem ser tão transparentes, que sirvam de LENTES?
As possiblilidades são infinitas. 
Como tudo está ligado entre si, isto de Lentes, só se produz com Impressão DLP...

Learn How to Make Your 3D Prints Truly Transparent

Pinshape Blog

3D printing continues to advance in its ability to create visually accurate prototypes, but most machines are still unable to produce optically clear parts. In this post, you’ll learn why 3D printers struggle to make objects clear straight off the build platform, and you’ll discover 3 techniques for making optically clear parts.

Why Aren’t 3D Prints Clear?
A smooth lake reflects surrounding objects, but when agitated the image warps and distorts. On a smaller scale, this is the effect that causes 3D prints made in a clear material to appear slightly opaque. Layers of a 3D print take on a slightly oval shape creating small gaps between layers that refract light and distort the image.

The above graphic from Taulman3D shows how light travels and bounces inside the layers of a 3D print. The purpose of the techniques you’ll learn today is to either add or subtract material from the print in order to flatten the layers and allow light to pass through without refraction.

https://pinshape.com/blog/learn-make-3d-prints-truly-transparent/

E para os Fabbers, os Entusiastas da Electrónica, e os Sucateiros de Ocasião, eis uma pequena caixinha para soldarem e des-soldarem em todo o lado...
É bom!

The Back Pocket Soldering Kit
Bean_MD

As a budding electronics enthusiasts, I made alot of things on my farm autonomous. With that came the problem that my soldering skill is a bit dodgy.
Recently I had to repair a few of these dodgy solders, which means I had to disassemble and take the part with me to the workshop.
This is a 10km + drive.
So as it is said, necessity is the mother of invention.
This is my kit I can drop in my back pocket, in my cabby hole, I even have one in my sun visor.

https://www.instructables.com/id/The-Back-Pocket-Soldering-Kit/

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
Pinshape  

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.

https://www.onshape.com/cad-blog/top-5-tips-for-designing-for-3d-printing

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.

http://www.sculpteo.com/blog/2016/02/10/engineers-have-a-bright-future-in-3d-printing-optics/

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!

http://www.instructables.com/id/5-Simple-Battery-Hacks/

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

Is the best PCB etchant in every kitchen ?
Feynmaniac

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 !

http://www.instructables.com/id/Is-the-best-PCB-etchant-in-every-kitchen-/

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)
Imetomi

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.

http://www.instructables.com/id/Make-a-One-Desk-Electronics-Lab-in-a-Small-Place-f/

Façam! Um Sistema Operativo, Lentes, Hidrogénio, uma Impressora 3D impressa, e uma linha Laser.. Mais uma grande Impressora Texana, e uma Ipressora sem fumos

É preciso dar vazão a isto tudo, que se acumulou, por isso, lá vão 4 Instructables duma vez, mais uma Impressora avantajada, e outra, sem fumarada!

Um Sistema Operativo!
Aprendam como fazer o vosso próprio Sistema Operativo, vocês é que lá sabem para o que seja.

Make A Simple Operating System
ssarthak598

Ever wanted to make an Operating System? Ever waned to know how command line operating systems work? Everything's here!
So we'll make a basic Operating System in C#, don't worry, if you even know some basics of c++ or java, you'll understand the code :D
By end of this tutorial, you'll be able to make your cool operating system!


http://www.instructables.com/id/Make-A-Simple-Operating-System/

Lentes...

Façam as vossas próprias Lentes, e tal qual precisarem delas, usando o Ray-Tracing para preverem o resultado!

Making Custom Lenses

Robb

The world of optics and lens manufacturing has traditionally been closed off to non-experts. It doesn't have to be that way. Using rapid prototyping tools like 3D printers and CNC routers, making a lens is easier than you might think.

You can use the technique outlined in this Instructable to make very large lenses, lenses that produce special effects, and sculptural lenses with freeform shapes. You'll need to know how to use a CNC router or have access to a nice 3D printer. With one of the two you'll be able to start making lenses right away.

http://www.instructables.com/id/Making-Custom-Lenses/

E para quem quer criar alguma coisa relacionada com Hidrogénio, como um carro que anda à borla, ou uma reconstituição Histórica do Hidemburg (MUÁHÁHÁHÁ!), cá fica o Instructable, com o AVISO, o Hidrogénio é perigoso, e só deve ser produzido por Adultos, e com todas, mas todas, as Precauções, e NUNCA numa sala fechada!

DIY hydrogen generator
Make it BIG

If you like my project please vote for it in the Explore Science Contest.

This Instructable shows, how to build an easy DIY hydrogen generator.

Materials needed for this project:
- Empty container with lid
- Cables
- Pencil
- Luster terminals
- Hot glue gun
- DC Power Supply
- Drill
- Funnel
- Balloon

http://www.instructables.com/id/DIY-hydrogen-generator/

Esta Impressora 3D é Impressa, ela mesma, por isso, se tiverem um Fablab à mão, deve sair barato...

Long Bed Printed 3d Printer

dmserve

The Long Bed 3d Printer was created to see how much of a 3d printer could be printed. That lead me to design a frame that could be printed on a heated bed, soon discovered I needed a larger build surface. After making a way to accurately control a larger bed, I had the maximum size that the frame pieces could be. By combining different parts I was able to get the main frame down to 9 pieces.

This Printer Can Reproduce Most of the Parts to make itself
Thanks for Checking This Out

http://www.instructables.com/id/Long-Bed-Printed-3d-Printer/

Uma Linha Laser, não uma simples mas uma linha toda à volta, atenção Arqueólogos, é o que podem fazer assim:

The DIY Laserline
by slurgXX

I have a project coming up, that needs a laserline, that creates a line over a 3 dimensional object in order to mark and cut it somewhat precicely. I´ve attached some pictures, materials i used ( materials i didn´t use) and some shots after finishing the piece.

But lets get to it, here is what you need to bild the thing*
*( some parts are just what i had around, and can be replaced with other random similar stuff, but we get to that later.)

http://www.instructables.com/id/-The-DIY-Laserline-/

...E se sempre quizeram imprimir uma Sanita(!) ou um Motor dum Automóvel, cá está a Impressora 3D feita no Texas, onde tudo é maior...

BRUTAL! 
Gosto disto. LOL

Gigabot Proves Even 3D Printing is Bigger in Texas
Tyler Winegarner

After their wildy successful first Kickstarter back in 2013, re:3D’s latest iteration of Gigabot, an extra large 3D printer, is Open Gigabot, which currently has two days left on its Kickstarter campaign. The Open Gigabot files are being released on Wevolver, a social enterprise for open source hardware.
Make: spoke with re:3D Co-Founder Katy Jeremko about the ecological inspiration behind the jumbo-sized printers. She says that re:3D wanted to “allow individuals worldwide to 3D print composting toilets or other human-scale solutions from trash.” The team decided to focus on developing a toilet printer, now known as the Gigabot. (Jeremko mentioned that they later found 3D printing with trash to be extremely difficult!)

http://makezine.com/2015/04/10/gigabot-proves-even-3d-printing-bigger-texas/

E da 3D Printers Online Store, esta Impressora 3D é pensada para não vos dar mais problemas que uma Impressora de Papel A4, nem fumos nem Calibrações, uma limpeza, que podem ter a imprimir no vosso quarto.

ZYXX Fume Free Professional 3D Printer
Welcome to the fume free, adjustments free and hassle free new world of 3D Printing.
Focus on your ideas instead of on your printer.

Technical Specifications:

• Print Technology: Fused Filament Fabrication(FFF).
• Build Volume: 270x230x195 mm.
• Filament diameter: 1.75 mm.
• Nozzle diameter: 0.4 mm.
• Max Resolution: 50 microns layer thickness, 11 microns XY positioning.
• Speed up to 150mm/s print speed, 200mm/s travel speed.
• Printing temperature: 100-265 Degrees Celsius.
• Filament type: PLA, ABS, Flexible PLA, TPU, Nylon, PET, Laywood, Laybrick, T-glase.
• Interfaces: USB, SD Card
• Stepper Motor type: 1.8° Step angle, 1/16 micro stepping.
• Build Plate Glass build plate with ZYYX 3D Print Sheet top layer.
• Firmware Custom Sailfish Open Source FW.
• 3D Printing Software: Simplify3D.

https://www.3dprintersonlinestore.com/zyxx-fume-free-3d-printer

Aprender toda a vida!

Mais disto, no fim, do Post, hé, hé:

A Electricidade Estática, estudada desde a Grécia Antiga, não é assim tão estática!

Há mesmo, uma ínfima TRANSFERÊNCIA DE MATÉRIA!

After Thousands of Years of Research, We're Still Trying to Figure Out Static Electricity

By Clay Dillow

Today in the Things We Thought We Understood But Really Don’t file, a Northwestern University researcher has upended what was previously thought to be a pretty good understanding of how static electricity works. Static electricity goes beyond the usual theory that it's a simple imbalance of charges caused by the exchange of ions, the researchers’ paper says. Rather, it is the result of an actual transfer of material.

Static electricity has been under investigation for a few millennia now, with research dating back to the ancient Greeks. But the Northwestern team wasn’t convinced that everything was as it seemed. So they applied Kelvin probe force microscopy to the problem, which allowed them to see the varying levels of charge distributed unevenly across the surface of objects.

http://www.popsci.com/science/article/2011-06/after-thousands-years-research-were-still-trying-figure-out-static-electricity

Para quem ainda pense que não se encontra de tudo na Net, um Programa para desenhar Lentes Fresnel, as dos Faróis que vêem na Costa, duma série de apps para Desenho de Sistemas de Óptica:

How to Model a Complex Fresnel Lens
By Mark Nicholson

The Annular Aspheric Lens Object

For situations where precise control of the Fresnel is needed on a ring by ring basis, the Annular Aspheric Lens Object is ideal:

This object has the surface shape of an even aspheric surface (radius, conic, and even-polynomial aspheric coefficients up to r16) on both faces, plus user-definable maximum and minimum diameters and thickness. It is ideal for modeling complex Fresnel lenses.

http://www.zemax.com/kb/articles/174/2/How-to-Model-a-Complex-Fresnel-Lens/Page2.html

Hem? Isto é que é Serviço!

E cá temos... A Elastomatik, à venda!

Elastic Band Gun: New Project Released!

Jon

This great elastic band gun projects is brought to you by Edgar the Inventor and although it’s geared more for acrylic, using 3mm thick materials, I’ve released it on WoodMarvels.com anyhow. If it works in acrylic, surely, it will work in wood as well though thicknesses may be an issue (finding 3mm thick wood that is).

You can find this project right now on WoodMarvels.com under Collaborations / Edgar the Inventor. You will want to get the assembly instructions (without plans) for this project if you get the EPS file – this project is tricky.

http://blog.woodmarvels.com/elastic-band-gun-new-project-released