Blog Posts

quarta-feira, 16 de outubro de 2019

Um Génio! E uma Máquina de Molas, Tele-controle Arduino, crescam a Impressora 3D, e uma Micro-Fresa

Não há muitos Divulgadores  e ao mesmo tempo, autênticos Professores como este...
Um Génio!

Na sua Série de Vídeos, aprende O QUE PRECISAM, para cada caso, mas vão absorvendo uma data de material que doutra maneira seria maçuda e sonorípora...

Acreditem, o ar descontraído esconde um menino que aprendeu Engenharia para Operador de CAD, 3 gigantes livronhos, como se não fosse nada, porque era preciso saber muita Matemática, e ele já a sabia, à vontade!!!

Como se não fosse nada!

.
Engineering Principles for Makers Part One; The Problem. #066Jeremy Fielding 
A easy to follow strategy for designing and making stuff with a focus on machines. Turn your idea into a real "thing". I call part one my “Dr. Farm“ Method.
My version of the basic design engineering process. 
https://www.youtube.com/watch?v=FHhXbz1K0k0





Ora cá vai esta muito satisfatória máquina de criar Molas e outras coisas, a começar pelo altaente satisfatório Vídeo, algo que faz mesmo falta ao Engenhocas, e uma data de vezes...




Spring Making / Wire Bending Machine 
jiripraus
Well, this machine is not only about making springs. It is a wire bending machine capable of bending 0.8/0.9/1 mm wire into any 2D shape. But yeah, the coolest thing I was able to make with it so far was the spring. How cool is that?
The main goal was to make it quite precise. Other DIY wire bending machines are not very precise and their bends tend to have quite a big radius. I like to work with nice sharp bends!
The second goal was to make it as easy to build as possible with commonly available parts and components. All the structural parts are 3D printed and all the metal parts are available in most of the hardware stores. 
https://www.instructables.com/id/Spring-Making-Wire-Bending-Machine/



Um Tele-Controle feito por vocês, usando nem menos do que um Arduino...


DIY Arduino Radio Controller || Remote Controller || Part 1Aatik's lab
You might have played with a lot of rc cars and probably want to make one by yourself but one problem you will face is from where to get the desired transmitter and receiver so in this video i will show you how to make a arduino based transmitter and receiver with the help of nrf24 radio

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


Como fazer uma Impressora 3D "crescer"(!) isto é, fazer duma pequena uma grande Impressora!!!



 
How to Create a Large 3D Printer Using a Smaller 3D Printer - "Project Locus"redhatman  
From those that own 3D printers, to those who simply are just curious about their capabilities, one topic that comes up rather frequently is the idea of "Printing another 3D Printer". Now this may not be 100% possible when considering components such as the electronics, however, nearly every 3D printer today in the open source community utilizes to some degree, 3D printed parts in it's construction. From fan mounts to spool holders, a person can spend a few minutes searching the web, and likely find a suitable design to use on their own printer. This has proved to be very useful, especially for those who love to build, modify, and design their own machines. 
https://www.instructables.com/id/How-to-Create-a-Large-3D-Printer-using-a-Smaller-3/





Que tal uma Micro-Fresa para a Oficina, para metais mais macios como Alumínio e Bronze?
Faz jeito:

Benchtop Micro Milling MachineHonus  
This is a micro sized benchtop mill that is suitable for milling small parts in soft metals such as Aluminum and Brass. While it is a manual mill it wouldn't be too difficult to convert it to CNC by adding suitable stepper motors and a CNC controller. 
The travel specs are:
X axis- 150 mm
Y axis- 75 mm
Z axis- 150 mm 
This design uses off the shelf assembled linear slides and 80/20 Aluminum extrusion for simple assembly and accurate alignment. The beauty of this design is its modular nature- you can make it any size you want and it's super easy to build.
Be sure to check out the build notes on all of the enlarged images! 
https://www.instructables.com/id/Benchtop-Micro-Milling-Machine/





quarta-feira, 18 de setembro de 2019

A Slide Rule! A melhor impressão em PETG, Imprimir em 3D, MESMO(!), uma 3 em 1 para a serra, e uma Peça para a carpintaria, impressa 3D!

Se precisam deste Instrumento de Cálculo, a Régua de cálculo pessoal, versão Circular já o podem fazer, com um humilde CD!
É bom!







CIRCULAR CD SLIDE RULE

cparedes2302  
Hello Everyone!
Keeping it up with my math helping tools and after I finished my straight Cardboard Slide Rule, I decided to make another slide rule but of much easier and fast construction. I decided to go for a simple circular slide rule. Just as the previous slide rule, the intention is to have middle school students built their own and use it to get numeric ability. I know there are several apps that emulate a straight and a circular slide rule, but if you are using your phone it would be much easier to use the calculator instead of the slide rule. My dream is to have the students “thinking and reasoning” again instead of relying so strongly on technology.
The advantages of a circular slide rule is that the computing scales (C and D) of a 9.5 cm (3 3/4”) diameter tool are equivalent to a 30 cm (almost 12”) straight slide rule! So you can get a more accurate reading! The disadvantage is that as your scale is located closer to the center of the Slide Rule, the scale becomes very short and difficult to read. 













O Petg, enquanto Filamento, está a ser muito mais utilizado, por isso, vai como o imprimir o melhor possível:





PETG Print Settings – How to Find the Best Settings for PETGMiroslav Sarcevic  
PETG is short for polyethylene terephthalate glycol-modified. That could mean something to you if you’re into chemistry, but for the rest of us, it’s simply the most used type of plastic on the planet (in the form of PET). You can find it in plastic bottles, food containers, packaging, toys, kitchen utensils, and more common plastic products. In addition, this recyclable plastic can be injection molded, blow-molded, thermoformed, bent, cut, and in recent years, 3D printed.
We won’t go into the details of PETG chemistry in this article but will instead concentrate on 3D printing with it. Before we dive into printing tips, here are a few of the material’s characteristics:
  • Glass transition temperature:  80 °C
  • Density: 1.27 g/cm3 (which is higher than PLA and ABS)
  • Resistant against most chemicals (such as acids, alkali, and solvents)
https://all3dp.com/2/petg-print-settings-how-to-find-the-best-settings-for-petg













Ao contrário das Fresas 3D, as Impressoras não imprimem em 3D MESMO, porque o Extrudor só move uma camada de cada vez, toda ela, sem a possibilidade de estrudar, e descer, e subir, num acompanhamento duma superfície curvada.
Mas está-se já a começar a fazer REAL Impressora, já, já!

Fantástico!



Achieve true 3D printing with non planar slicing

Teaching Tech
This is the most interesting thing I’ve done with my 3D printer in some time. Instead of printing in a series of 2D planes stacked up to form a 3D shape (2.5D), this non planar technique creates geometry with true 3D tool paths that can eliminate the steps often seen on shallow surfaces. Based on the amazing Masters Thesis of Daniel Ahlers and the University of Hamburg, this development can be tried yourself if you are willing to put in some time to setting it up.
In this video I’ll lead you through step by step on how to setup a virtual Linux machine on your PC, compile the custom version of Slic3r and then share with you my results. The future is bright and I thank people like Daniel Ahlers  and Moritz Walter for leading the way.










E cá vai esta 3 em 1 para a Serra Circular, que vos vai ampliar a Ferramenta, com estes 3 Cortes adicionais, tão úteis, vejam o vídeo!





How to Make a Three in One Table Saw Sled || Taper Cuts- Jointer Sled - Miter Cuts
penaltyboxwoodshop


This video shows you step by step on how to build a three in one table saw sled. With this sled you can make taper cuts for table legs, edge joint wide boards, and make 45 degree cuts for projects like making picture frames. This sled can be helpful to any skill level woodworker!

https://www.instructables.com/id/Three-in-One-Table-Saw-Sled-Taper-Cuts-Jointer-Sle/















Mais Carpintaria, agora, uma coisa feita nas Impressoras 3D, está tudo inter-ligado, no mundo da Engenhocas...
Não quero que vos falte nada!








CNC Clamps 2mm (0.08 Inch) to 18mm (0.7 Inch)PatrickH101 
Clamps for holding down your workpiece on a cnc router. The
clamps are designed for holding down materials with a thickness of 2mm to 18 mm.
I designed the clamp using Fusion 360.
There are 4 different sizes for the bolt that goes through, M5, M6 or 1/4 inch and for a special request M8 (The M8 version is not tested but should work though the sliding distance is a lot shorter).
Best is to use a washer on top.
The actual foot to hold your workpiece can rotate to adjust to the thickness of your material. 
https://www.instructables.com/id/CNC-Clamps-2mm-to-18mm/











sábado, 24 de agosto de 2019

Um Magnéstico dum Arduino, 56 usos de PVC, as melhores Gravadores Laser, as mais baratas Impressoras 3D, e 407 Ferramentas

Aqui está um uso para um Arduino, um Magnetoramo, para o que possam surgir que necessite de um medir algum Campo Magnético...







Arduino Magneto medidor
amamitof7 
What are we building?
Humans can't detect magnetic fields, but we use devices that rely on magnets all the time. Motors, compasses, rotation sensors, and wind turbines, for example, all require magnets for operation. This tutorial describes how to build an Arduino based magnetometer that senses magnetic field using three Hall effect sensors. The magnetic field vector at a location is displayed on a small screen using isometric projection.
What is an Arduino?
An Arduino is a small open-source user-friendly microcontroller. It has digital input and output pins. It also has analog input pins, which are useful for reading input from sensors. Different Arduino models are available. This tutorial describes how to use either the Arduino Uno or the Arduino MKR1010. However other models can be used too.
https://www.instructables.com/id/Arduino-Magnetometer/










Aqui vai uma grande de coisas porreiras que podem fazer com tubo PVC, 56 delas diferentes, de tudo um pouco!







The 56 Most Brilliant PVC Hacks You’ve Ever Seen
Nick Gerhardt 
What can’t you do with PVC pipe? Here are 56 incredibly smart (and cheap!) ways to use this do-it-all material around your home and workshop. 
https://www.familyhandyman.com/diy-advice/the-most-brilliant-pvc-hacks-ever-seen/
















Se quizerem uma Gravadora Laser, aqui estão as melhores, e também a explicação do que elas fazem:





2019 Best Laser EngraversMax von Übel  
What's the best laser engraver? Check out our 2019 buyer's guide. Plus an introduction to laser engraving, services, and materials.
Home and office laser engraving have become so much easier these days. Once strictly used by industrial manufacturers, laser engraving is increasingly adopted by small businesses, product designers, makers, and even hobbyists.
In some cases, a laser engraver might prove to be the most advantageous manufacturing technology for your specific application.
Before pulling out your wallet, we have also compiled everything you need to know about laser engravers into a comprehensive guide to get you started in this great technology. 
https://all3dp.com/1/laser-engraver-engraving-machine/














E os mais acessáveis Impressoras 3D, MAS, estas, preciserão ser montadas, por vós, por isso, contem com umas horas às voltas nisso:








2019 Best Cheap DIY 3D Printer KitsAll3DP  
Do you want to build your own 3D printer with a low budget DIY 3D printer kit? Check out the best cheap DIY 3D printer kits you can buy right now.
Feeling brave enough to build a 3D printer from scratch? Assembling your own cheap DIY 3D printer kit is an attractive low-cost option if you’re on a tight budget.
It’s also a fantastic way to learn the nuts and bolts of how 3D printing works — quite literally. There’s no better way to understand the fundamentals of fused deposition modeling than by putting together your own machine. It’s highly satisfying, too. 
https://all3dp.com/1/best-cheap-diy-3d-printer-kit/















E mais uma longa lista, desta vez, 407 Máquinas Ferramentas de todo o tipo:




https://www.pinterest.pt/fernydiez10/máquinas/


















quinta-feira, 8 de agosto de 2019

Uretano? E imprimir mais transparente, 607 ideias(!), façam uma Fresa CNC, e 10 passos para boa impressão.

Ora aqui está um meio caminho entre imprimirem, um por um, uma pequena série de objectos, e mandar fazer um Molde para injecção em séries grandes.
Isto vai libertar muito Criador e Engenhocas...





Urethane Casting – All You Need to KnowAlex Haysler  
Urethane casting (UC) is a manufacturing technique allowing for low- to mid-range volume production. It successfully bridges the gap between alternative low-cost methods, which lack scalability, and injection molding. This method allows creation of production-like parts with high-quality, detailed features and cosmetic similarity both quickly and inexpensively.
UC is primarily aimed towards situations where the cost of hard tooling in aluminum or steel, such as for injection-molded parts, would prevent manufacture. UC can also be referred to as room temperature vulcanization (RTV), where the silicone mold is cured in ambient conditions. 
https://all3dp.com/2/urethane-casting-all-you-need-to-know/












Há Materiais Transparentes, mas aqui aprendem com aperfeiçoar a Impressão para o melhor possível:




Transparent 3D Printing – 4 Ways to Create Transparent PartsBenjamin Goldschmidt  
As you might have guessed, transparent 3D printing is printing a plastic part that you can see through. Applications of this technique vary from see-through vases to optical elements like prisms, art, or decorative pieces. While this might seem simple to achieve (buy transparent filament and print it), the reality is a bit more complicated. Before going into methods, we’ll need to learn about some of the science behind what makes something transparent: What is transparency?
Transparency, or the ability to see through an object, is controlled by how light passes through it. If light passes through an object without being redirected in a significant way (i.e. through a pane of glass), the object will appear to be transparent. In glass, the material is homogenous and clear, meaning that you can easily see through it. To mimic this property in a 3D printed object, we must adhere to the following rules:
Plastic material must be transparent to start with
Printing must limit the introduction of air bubbles into the part
The part should have a smooth surface in the desired transparent area 
https://all3dp.com/2/transparent-3d-printing-create-transparent-parts/














...E se vos faltam as Ideias sobre o que imprimir, cá vão 607 nLinks para seguirem!









https://www.pinterest.pt/fgunawanc3po/3d-printer-printing/














Podem seguir estes planos Open Source, para criarem a vossa Fresa CNC, e sigam o Site, com atenção, que tem muito mais:





The LowRider2 CNC
V1ENGINEER
The LowRider2 CNC is my revised version of a CNC router that can handle full sheet material! Of course you can go smaller. If the MPCNC is not big enough for you this picks up where that left off.
Thingiverse Printed parts files – Links 25.4mm, 25mm version. Hardware list – Parts.
This CNC router can handle any length (within reason), the Y direction is only bound by your table length.
Width (X direction on rails) should always be the shorter axis and is recommended to keep the work area no larger than 4′ on this axis.
The Z direction (height) is best kept to a 3-4″ maximum for wood, with that being said, you can make the usable z length as much as you want you will be working from the bottom up, so go to town. 














Eis como tratarem de terem Impressores perfeitas, com 10 ajustes avançados, que vos ensinam na Pinshape:







10 Advanced 3D Slicer Settings That Will Save Your Prints!

Accurate 3d slicer settings are one of the most important factors to achieve a successful 3d print. Even the most experienced makers often go through trial and error to find the 3d slicer settings that give them a beautiful print. In our last article Slicer Settings for Beginners – 8 Things you Need to Know, we went over the basic settings and how each one affects your print. Now we’re going to go over some of the more advanced settings that give you more detailed control over how your print comes out so you can take your 3d printing to the next level. An overwhelming number of you voted for Simplify3D as Top 3D Slicing Software in our 2015 Pinshape Awards which is one of the reasons we chose to use them as our example software for this post.  There are a lot of settings in this slicer program that give you a ton of control and provide faster, better quality prints. In one review, Simplify3D sliced a file in 55 seconds that took over 40 minutes to slice in another program!  













segunda-feira, 22 de julho de 2019

Automatismo para qualquer um! E acabamentos na Impressão 3D, com uma PISTOLA DE COLA(!), Concrete Molds, Derreter VIDRO no Micro-ondas, e temperar PLA

Qualquer um pode controlar agora a sua Màquina, sem saber programação!
Brutal! 
E podem controlar, vigiar etc.





Machine Control at Your FingertipsMichael Di Staulo 
We’re proud to present our new MachineMotion Pendant: a plug-and-play touchscreen interface for automated equipment powered by the MachineMotion controller. Now you can program, control, and monitor your machine through an intuitive code-free user interface.
The pendant features a 10.1-inch touchscreen, impact-resistant enclosure, rear mounting tabs compatible with UR’s eSeries Pendant Mount, and a comfortable hand strap. It also makes your system safer by ensuring an emergency stop button is always within the user’s reach. 
https://www.vention.io/blogs/machine-control-at-your-fingertips-184













Note: Besides the cool uses that you see on the neat idea below, think also it can be used to COLORIZE details on monocrome Prints!



Isto é uma  ideia que toda a gente gostaria de ter tido!
Paa o quê?
Para acabar, soldar ou reforçar, etc. umas peças com a vossa simples Pistola de Cola, o que vos poupa muito tempo e chatiçes!
Porreiro.
Até... 
Pode servir para COLORIR detalhes duma impressão Monocromo, já pensaram nisso? 




[Project] 3D Printing Sticks for PLA Hot Glue GunTyler Koslow
Who needs a 3D printer when you have a hot glue gun? This Hackaday project from Donald Papp shows us how to use molten PLA filament to glue 3D printed objects together.
When 3D printing ambitiously sized projects, hot glue guns come in handy as a tool to join two separate things together. But what if you could bind these objects with the very same PLA filament that you used to 3D print in the first place?

https://all3dp.com/weekend-project-3d-printing-sticks-for-pla-hot-glue-gun/












Cimento neles!
Já viram que bacansa de Impressoras 3D se faziam, com partes em CIMENTO, para tornar a máquina muito mais sólida?
Até TORNOS se podem fazer com Moldes, seguindo este método.


Useful both for 3D printers a lot more solid, AND even for Lathes, using this Cement Mold idea!



Create Concrete Products With 3D Printed MoldsFurther Fabrication  
In this Instructable I wanted to show you my process, for making 3d printed moulds, to create cost effective prototype products, with cast concrete.
https://www.instructables.com/id/Create-Concrete-Products-With-3D-Printed-Molds/












Note, although Metal on the Microwave is a big NO-NO, removing the Kiln, at a certain temperature, and quckly pouring it onto a Mold...
That's feasable.



Derreter VIDRO no Micro-ondas!
E sabe-se lá que outros Materiais não-metálicos.
Porque Metal, no Micro-ondas...
NÃO!

Mas... Isso não impede de se poder retirar o Cadinho, com uma boa temperatura...
E, rápidamente, inserir um pouco de Metal, e logo, se verter para um Molde! 
MEWAHAHAHAHA!





DIY Microwave Kiln | Fuse Glass in Your MicrowaveShakeTheFuture 
In this Instructable, we'll look into way to make a microwave kiln.
For those who don't know what is a microwave kiln, here is a quick introduction.
Microwave kiln is a kiln that you can put in your regular microwave oven.
It does not use a wire heating element or gas to heat up. Microwave kiln is covered with silicon carbide.
Silicon carbide absorbs microwaves and turns them into heat.
Microwave kilns are usually used to fuse glass.
You can turn broken glass into amazing jewelry. 
https://www.instructables.com/id/DIY-Microwave-Kiln-Fuse-Glass-in-Your-Microwave/











Tempera-se Metal...
Porque não, PLA?
É o que este nosso amigo nos ensina a fazer:



Annealing PLA Prints for Strength – 2 Easy WaysMiroslav Sarcevic 
Background Information
Annealing, when referring to metals, is when you heat up a material to make it less brittle and more pliant. In order for this physical change to occur, you have to heat the material to a sweet spot that’s cooler than its melting point but hotter than the temperature it recrystallizes at. You have to maintain this temperature for a while and then let it naturally cool down.
...
Annealing Plastic
Though this definition refers mostly to metals, a similar process can also be used with plastic. The technology behind plastic annealing is not new. It has been used for decades in the production of injection-molded plastic objects. Annealing is used to reduce internal stress in molded parts and make those parts stronger and less prone to warping.

https://all3dp.com/2/annealing-pla-prints-for-strength-easy-ways/











quarta-feira, 19 de junho de 2019

Soldar peças 3D! E façam o vosso Portátil com uma Raspi, AzureSphere para IoT, gravar METAL com uma gravadora Laser(!)e, e Scan 3D com uma Câmara normal

Isto é importante.
Porque assim, com este acessório manual, podem criar à vontade, sem problemas nem de tamanho, nem de cores diferentes...
Basta SOLDAR as peças, com este método de Plasma Frio.
Impressionante!






IS PLASMA THE MISSING LINK IN ASSEMBLING 3D PRINTED PARTS?
UMAIR IFTIKHAR

Creabis, a Kirchheim-based 3D printing service bureau, is using Relyon Plasma’s piezobrush PZ2, a handheld cold plasma device, to bond 3D printed parts.
The piezobrush PZ2 uses plasma to activate surface particles of a substance which strengthens the adhesion between joined parts. With a strong bond between assembled 3D printed parts, it is possible to manufacture large-sized sturdy components on small sized 3D printers. 
According to the CEO of Creabis, Ralf Deuke, plasma-aided bonding will lead to more novel applications in 3D printing.












Peguem numa Raspberry PI, e numas coisitas mais, e fazem o vosso próprio Computador Portátil todo manerinho, que cabe num bolso, dobrado! 
É bom!






Make a Portable Computer Using a Raspberry PiTylerJohnson

Have you ever wanted a portable computer you can take with you? This is the easiest way to build your own. For those of you who do not know what a Raspberry Pi is, it is a complete computer about the size of deck of cards that can run many different kinds of Linux. This portable computer will be complete with a screen, keyboard, wifi, and a battery. This is just to show how to make the components work on battery, this indestructible does not have instructions for building a case. There are a lot of interesting ideas for cases and I did want to limit anyone's options. I tried to find the easiest way of making a portable all in one battery powered computer.
For this project you will need to be comfortable doing electrical soldering and desoldering; if you are have not done electrical soldering before, there are many tutorials online.

https://www.instructables.com/id/Make-a-Portable-Computer-Using-a-Raspberry-Pi/
















Para essa história do IoT, Internet of Things, podem desenvolver os vosso Porjectos, à brava com este Kit, Azure Sphere por isso, cá segue o Anúncio da coisa, mas atenção, podem até receber o Kit GRÁTIS, se forem, seleccionados...






Azure Sphere

We're partnering with Microsoft and Avnet to test their new, highly secure IoT dev kit, the Azure Sphere MT3620 Starter Kit. We'll be hosting multiple Design Challenges around this kit, as well as a RoadTest, webinars about using it for prototyping, and more, so we'll provide everything you need to get started with this IoT solution!
If selected for the RoadTest, you will receive the kit for free. Follow this group and watch for Design Challenge news.














Sabiam...
Que podem gravar em METAL, até com as minísculas gravadoras Laser que há à venda, por aí?
Podem, MAS com uns truques.
É preciso um tratamento Químico, e este Instructable, foi ver quais os melhores para quais metais, por isso, têem a papinha toda feita!







Laser Engrave Metalbrichtl

Being able to engrave metal was one of the main reasons, why I got a laser cutter.
In this instructable I am going to show you some of my experiences.
Please share your results and experiences in the comments, I would love to learn more about engraving metals.
A word of warning: The process of engraving metal after applying an agent to the surface is patented. So please inform yourself, before doing so commercially.

https://www.instructables.com/id/Laser-Engrave-Metal/















Mais uma forma de fazerem Scan 3D, com uma vulgar Câmara digital, todos os passos, programas e aparelhos necessários:





3D Scanning Yourself in High Resolution With a Camerashuang peng 

In this instructable, I'll share with you how to create a 3d model of yourself with a camera. Then clean up, fix the mesh make them printable models.
Things you'll need:
  • A camera (or a phone with camera function)
  • Autodesk Remake
  • Autodesk Mudbox
  • Geomagic studio (optional)
  • A 3d printer (if you want to print them)
https://www.instructables.com/id/3D-Scanning-Yourself-in-High-Resolution-With-a-Cam/