3 Impressoras 3D DIY! E uma Mala de Viagem, um Servo Linear, um Nivelador, e Motores muito mais potentes

Eis não uma, nem duas, mas 3 Impressoras diferentes que podem fazer em casa!

Cada uma tem um Instructable, e é só escolherem...

Ou fazerem as 3! 
LOL

Sigam este primeiro Instructable, com vídeos dos 3 tipos de Impressoras, e a explicação de cada um desses tipos, para poderem escolher:

Building a 3D Printer
Core3D

I recently presented 4 3D printers at the Maker Faire Milwaukee. All 4 were designed and built by me. I'll share the links to 3 of the instructables that explain how to build them. This instructable however, is going to take a more general look at what to expect when building a 3D printer.
One repeating question I get at shows is, how much it costs to build a 3D printer. The answer depends on what you're building but, of all my printers the minimum is about $400.
The follow up question is, why you would pay that kind of money for parts, if you can buy a 3D Printer for less than that. Good question and here's my answer to that:

You only would build a 3D printer if you want to experience the process of building a printer. Yes, it can be more expensive (I won't pass judgement on the quality of the cheaper, ready made products) but think of the process of building a printer as a learning experience. You are paying for the experience and out of it you happen get a working project.
One of the most remarkable things about building a 3D printer is that you'll amaze yourself (and can take great pride in) at what you are capable of.
I built (and to some extend) designed my first printer 4 years ago without an ounce of experience in robotics and electronics.
A fair warning: Building a 3D printer is like getting a Tattoo; it will never end with one.

https://www.instructables.com/id/Building-a-3D-Printer-1/

Uma boa Mala de Viagem, ou Estojo de Ferramentas, ou algo de resistente para a Estrutura das vossas Maquinetas variadas, como alguma Impressora 3D portátil, podem vocês agora fazer em casa, à medida MESMO de que precisam:

Making of a DIY Flightcase
TangLB

I have some sound equipment and I needed some kind of box to store my lights and various accessories.
I realized a few months ago a "DJ suitcase" a kind of flight case, with mixer and light dispatching (picture at the end of this project), I decided to detail you the steps of the realization of this new "case".

https://www.instructables.com/id/Making-of-a-DIY-Flightcase/

Um Servo Linear seria muit bom para máquinas CNC caseiras, ams são caros que se farta!

Este nosso amigo ensina-vos como fazerem os vosso Servos Lineares, com os Controladores e tudo.

DIY IRONLESS LINEAR SERVO-MOTOR
Vulcaman

Hi,
in this Instructable I want to show you, how to build your own Linear-Servo-Motor for Linear-Movement-Applications.
But at first the story about this Instructable:
When I visited one of the biggest trade faires for Automation here in Germany, I saw a lot of Linear-Motors in Industry Applications. It was quite astonishing how fast these Motors can move with an incredible precision.
I thought it would be really cool, if I could addapt these kind of motor in a Laser or 3D-Printer Application. Sadly these Motors are very expensive (>1000€ per piece). So buying a Linear-Motor is not an option anymore. But after some research I thought it will be possible to build my own Linear-Motor. Theoretecly a Linear-Servo-Motor is just a three phase sychronous motor with a closed loop position feedback. So I started to create CAD-Drawings and Electronics. After one month of research and improvements I can say, I have built my own working Ironless Linear-Servo-Motor. However there are some points which need to be improved especially in the position regulation. This project helped me a lot to understand, how a Linear-Motor works in general, and how to programm a closed-loop controller for it.

https://www.instructables.com/id/DIY-IRONLESS-LINEAR-SERVO-MOTOR/

Então, e porque não, usar a vossa Impressora 3D, para a afinarem? 
É o que fazem, com esta ferramenta para nivelar a vossa base de Impressão:

LED 3D Printer Bed Leveling Tool

TechKiwiGadgets

Being new to 3D printing I found leveling the print bed a challenge, particularly on printers without auto bed leveling. This 3D Printer Bed Leveling Tool uses a Pulse Induction Metal Detection Sensor and a LED Bar Graph to show the relative distance from the Print Head to the hotbed. This is an independent add-on that does not require any code changes to printer firmware or wiring. It is easy to quickly attach to check and tune bed levels then remove.

https://www.instructables.com/id/LED-3D-Printer-Bed-Leveling-Tool/

Um vídeo inquietante, no bom sentido, é este, que trata dum aperfeiçoamento aos Motores e Geradores, algo que importa ver com atenção...

Man Solves Tesla’s Secret To Amplifying Power By Nearly 5000%
Get Involved You Live Here

This technology and information can and will quite literally change the world overnight. Jim Murray needs your help to get his energy paradigm shifting information out to the public. Jim has been a student of Nikola Tesla's work for decades and he's solved Tesla's secrets to amplifying power by nearly 5000%. Sound crazy? That's what we thought - until we saw it work. Jim has already secured funding from investors on the technology side, but he needs your help to write a book which explains to everyone how it's done. Your donation will help spread the information that will transform energy use as we know it.
 
https://www.youtube.com/watch?v=HK3JOlY0V8Y