Bola de Natal. E cópias sem fim (!), Estlcam, para toda a CNC, às curvas com a Fresa, Thangs com tudo, Moldes com pistolas de cola, e Ovos!

Podem imprimir esta simpática bola de Natal, com o Presépio, para pendurar na Àrvore de Natal, obra deste vosso amigo, juntamente com muitos outros:

https://cults3d.com/en/users/edgarinventor/creations

Para replicarem objectos sem fim, têem esta fenomenal técnica, e depois de criarem o DMolde, podem até usar a placa da Impressora 3G, só ela, não o extrusor, claro, para aquecer as placas de plástico para termo-formação:

NOW YOU CAN DELIVER DOZENS OF DUPLICATES WITH INEXPENSIVE 3D-PRINTED MOLDS FOR THERMOFORMING

Ira Somers

3D Printing Molds For Thermoforming Short Runs: Quick, Easy, and Inexpensive

 

Businesses call owners of Massivit 3D printing solutions to bring their most creative ideas to life. Now they can call when they need multiple copies of displays, signs, or props.

Massivit 3D makes short run molds for thermoforming possible—and even profitable.

Thermoforming is a cost-effective process when you need multiple copies of the same product. Take a mold, place a thermoplastic sheet on top, add heat and a vacuum and voilà! The sheet takes the form of the mold. Lather, rinse, repeat until enough copies are created.

https://massivit3d.com/blog/now-you-can-deliver-dozens-of-duplicates-with-inexpensive-3d-printed-molds-for-thermoforming/

Ponham as vossas criações, 2D ou 3D, neste programa, Esticam, e ele deita cá para fora o G-code nessessário para os 2 casos...

É bom!

CAM Lite

ALL3DP

Estlcam is a computer-aided manufacturing (CAM)  program that allows users to turn 2D drawings and 3D models into machine-readable G-code. This brilliant project was created by Christian Knüll, and its popularity has skyrocketed since it debuted in 2014. Perhaps the most attractive characteristics of Estlcam are its simplicity and low price.

If you’re a beginner in CNC milling, you’ve probably been frustrated by the complexity (and ungodly prices) of many CAM programs. Estlcam solves these frustrations by presenting users with an extremely intuitive user interface at a price of around $60.

The program sticks to the basics. Simply import a 3D file (such as an STL) or a 2D file (such as .dxf, .svg, .png, .gif, or .jpg), generate toolpaths, export the G-code – which is referred to as a “CNC program” in Estlcam – and start cutting. In this article, we’ll guide you through Estlcam’s basic features and provide tips on settings along the way.

https://all3dp.com/2/estlcam-cnc-beginner/

Sigam de perto este Bacano de poucas palavras, mas MUITAS idéias, o Alex Laiho, porque para além desta maravilhosa Ferramenta DIY, tem um sem-fim de outras criações magníficas!

Uploaded by 

Alex Laiho

https://www.pinterest.pt/pin/AQdVQ0F7zlW9Gluu8PrReGLmts1qZpoCuSYWFYnBTq8ng9m8SOOWGvE/

Em Thangs, vocês encontram um sem-fim de Ficheiros 3D, podem carregar os vossos Objectos, colaborar com outros criadores, e encontrar o que querem, devido ao seu poderoso motor de busca, o que estão à espera? Vão lá!

Let's find Thangs. 

Thangs is the fastest growing 3d community with over 1,114,093 available models to search, store, and collaborate.

We created Thangs for one reason: our community members. With powerful search, collaboration tools, model sharing and unlimited storage, we are the fastest growing 3D community.

https://thangs.com/welcome

Ora aqui está uma bela ideia para a escola, para vender, ou para o que quizerem, fazer com a cola da pistola de cola toda a espécie de coisas, em série pequenas:

The Secret to a Perfect Hot Glue Mold

SophieBdoesart

I've been making molds for a while now, but I often found myself frustrated by the high costs of materials. I love the quality that silicone molds like Smooth-On give, but I wanted to find a cheaper alternative for small casts. Hot glue was the obvious choice for me because of its price, its flexibility, and its incredibly quick cure time. The one major problem with hot glue is that it sticks to almost everything. I needed to find a mold release that would fill any small pores in the positive, allow the object to de-mold easily, and be as inexpensive and readily available as hot glue to avoid defeating the purpose. I tried everything. Oil, petroleum jelly, even some Smooth-On mold release as a test but none of them worked well enough to not damage the molds when I removed the object. I didn't figure it out until we had a power outage and I was digging through my collection of scented candles. The liquidy, melted wax was perfect for coating objects. Hot glue doesn't stick to it but it goes on thin enough to not obscure the details of the mold. Here's how I finally got the perfect hot-glue mold:

https://www.instructables.com/The-Secret-to-a-Perfect-Hot-Glue-Mold/

Como aqui há de tudo para todos, cá vai este Projecto para a malta que nos alimenta, uma bela Incubadora para chocarem os ovos da vossa exploração Pecurária!

 

DIY Homemade Incubator

DIY Dave 

Branded and commercial incubators can be expensive for DIYers. A homemade incubator, on the other hand, can also hatch eggs successfully, and you don’t need to spend a lot of money on it.

https://diyprojects.com/homemade-incubator/

Reciclar a vácuo, um Manual de Soldagem num Blogue fantástico, um Buldozer para a criançada, uma Lanterna completa, e um Sistema de Som!

Aproveitem todo aquele plástico rijo das embalagens, reciclando-o com esta máquina de Molde a vácuo:

Milk Jug Vacuum Forming - Recycled HPDE PlasticHey Jude 

This Instructables shows you how to reclaim / re-use / re-cycle HDPE plastic, from waste milk jugs - and use them for Vacuum Forming. It saves using virgin plastic, (say for prototyping), is food safe, is flexible once moulded (good for concrete mini moulds), and does not give off harmful fumes upon careful heating (Easter Eggs Treasure!).
(Please consider voting in Trash to Treasure contest, if you liked it! Thanks.)
You may have access to an industrial grade Vacuum Former in your workshop or maker space, but if you are using a hobby Vac Former, like a Mayku*, you do need to avoid draughts to keep the plastic extra warm. I made a heat shroud here (LINK to Instructable) to Fix It...so do take inspiration from it if it helps with thicker HPDE containers, etc. (though at your own risk). 

https://www.instructables.com/id/Milk-Jug-Vacuum-Forming-Recycled-HPDE-Plastic/

Neste Blog há muito para explorar, Sofware, Mecânica, Manuais, e este manual é um deles:

Welding processes handbook

Klas Weman

Mecha Source 

Production of this guide to welding was prompted originally by a wish for an up-to-date reference on applications in the field. The content has been chosen so that it can be used as a textbook for European welding courses in accordance with guidelines from the European Welding Federation. Over the last few years, an equivalent Swedish guide has been used for courses on welding processes and equipment. The author hopes that this guide will serve as a useful reference book for those involved in welding. In writing the book, there has been a conscious effort to ensure that both text and illustrative material is clear, concentrating particularly on interesting and important aspects. 

https://mechasource.blogspot.com/2018/06/welding-processes-handbook-klas-weman.html

Eis um exemplo de criatividade, para a Criançada, um soprador de neve que virou um Bulldozer!

Snowblower Converted To Mini Tracked BulldozerFarm Show 

“My 4-year-old son Matthew loves to drive it. I’m really happy with how it turned out,” says Randy Brancheau, Lachine, Mich., who converted a tracked walk-behind snowblower into a kid-size, ride-on bulldozer.
  The mini tracked bulldozer is equipped with a 27-in. blade and the seat off a riding mower. It’s painted Deere green and yellow.
  Brancheau built it last winter and says his son has already had a lot of fun operating it. “I hear from Matthew every day how much he likes to plow snow with it, and I made a video of him at work. He raises or lowers the blade by pulling on a lever and steers by maneuvering a pair of levers. It has 4 forward gears and one reverse. I didn’t modify the snowblower’s original friction disc drive system at all.”
  Brancheau says he got the idea a long time ago but was only recently able to make it happen. 

https://www.farmshow.com/a_article.php?aid=33214

How I Made the Most Advanced Flashlight Ever

Julie

PCB design is my weak spot. I often get a simple idea and decide to realize it as complex and perfect as possible.

So I once looked an old "military" 4.5V flashlight with regular bulb that was collecting dust a. The light output from that bulb was pretty miserable and the batteries were non rechargeable, battery life was non existent. But its case was nice.

So I decided to give it a new high-tech heart.

So I asked myself: "How many functionalities do I want to build in?"

and I said: "Yes. All of them."

:)

https://www.instructables.com/id/How-I-Made-the-Most-Advanced-Flashlight-Ever/

...E por  hoje é tudo, mas não sem antes divulgar este Instructable para os Audiófilos, um Sistema de Som: 

DIY 5.1 Surround speakers - a learning opportunity!

Thomas Sanladerer

3D printing parts that are more complex than what we usually make can be daunting - especially when it also needs look good! Making my own 5.1 surround satellite speakers was a project I started over two years ago and today we're finally finishing it. There were plenty of hiccups and mistakes - I'll show you all of them so that you don't have to make them yourself!

The speakers were modeled with Onshape, unfortunately I don't have the models anymore or I'd gladly share them with you.

https://www.youtube.com/watch?v=stFMvPXvraY&feature=em-uploademail

Ganda Impressora! E uma Laser CNC, uma Cana de Pesca portátil(!), Moldagem sem falhas,

O nosso amigo Angus traz-nos esta Bizarma desta Impressora, da Hungria, País surpreendente, e há muitas boas razões para o entusiasmo dele...

E para o meu entusiasmo, também!

Maravilha.

CraftBot 3 3D Printer Review - Heavy Duty IDEX Beast

Maker's Muse

Today we're checking out the CraftBot 3! A huge, heavily built 3D Printer with Independent Dual Extrusion (IDEX) from CraftUnique, Hungary.

https://www.youtube.com/watch?v=kaEVkuYJVi0&t=6s

Da enigmática Empresa J&R Technology vem-nos este vídeo duma Laser CNC de Fibra, caso sério, pois corta METAL!
Boa!
O link para a Empresa está no vídeo:

Fiber Metal Cutting Demo Video from J&R
J&R Technology

J&R specialized in design, R&D and production of CO2&fiber laser machines for cutting, engraving, and marking.

https://www.youtube.com/watch?v=kaEVkuYJVi0&t=6s

Algo de fantástico, uma Cana de pesca Portátil, que podem imprimir, nas vossas Impressoras, para exibir à Malta...

PortaReel Portable Fishing Pole

MechEngineerMike

This is our originally designed "PortaReel" Portable Fishing Pole! Its the smallest full function fishing rod available, a super useful tool to add to your fishing toolbox!

https://www.instructables.com/id/PortaReel-Portable-Fishing-Pole/

Isto é importantíssimo!

Tanto pela Técnica de produdcção de excelentes peças de fundição usando vácuo;

Quanto pela Cera de moldagem, que é mesmo superior;

Como, até, pela própria BOMBA DE VÁCUO que pode servir para N engenhoquices diferentes!

Fenomenal.

EASY build Vacuum Casting machine system for Lost Wax / PLA Casting - DIY chamber & Pump : lwc #6
VegOilGuy

Vacuum casting machines are expensive. But can you make one? YES… here’s a easy, simple construction, low cost vacuum arrangement to assist with you lost wax or lost PLA casting. Many of the parts you may already have lying around and the rest are cheap as chips. Building a vacuum system has literally saved me thousands and just as importantly it’s dramatically improved the quality of my metal castings… beautiful, clear and precise details matching exactly the original wax pattern, with no pockets, no porosity and no sand. This really is a cheap and simple solution to better lost wax casting!

https://www.youtube.com/watch?v=EGNnH_xbjR4

Só coisas boas!

Agora é esta pequena maravilha de Fresa CNC, da qual, que podem Imprimir muitas das partes!

Toca a fazer uma, e mais nada!

DIY 3D Printed Dremel CNC

Nikus

When I got my first 3D printer I was extremely happy with all the new possibilities to create things but after some time I noticed the limitations of 3D printing. Plastic is easy to melt, sometimes it's not mechanically resistant enough and most importantly sometimes doesn't look good. Don't take me wrong here, I love 3D printing and I like plastic (except plastic waste) but there are things that look, work or feel way better when made out of nonplastic material. Imagine all your furniture made out of plastic. Sometimes I prefer wood, when I need strength, metal (mostly aluminum) is a way to go. That's where CNC milling machines are used. Usually, the cost of such machine is really high, most of the hobbyist, small makers can't afford such expensive equipment. That's why the idea of building my own CNC machine sparked in my head.

https://www.instructables.com/id/DIY-3D-Printed-Dremel-CNC/

E terminamos por hoje, com esta ideia Estratosférica, atenção, malta das Universidades, como fazerem os vossos próprios Balões Estratosféricos, para o bem da CIÊNCIA!

MUÁHÁHÁHÁHÁHÁ!

How to Make a Picoballoon

Jakub_Nagy

What is a picoballoon and why would I want to build it?! I hear you ask. Let me explain. You all probably know what a HAB (High Altitude Balloon) is. It's a bunch of weird electronics stuff connected to a balloon. There are soooo many tutorials regarding HABs here on Instructables.
BUT, and that's a very big BUT what they don't tell you most times in the tutorial is the cost of the filling gas. Now, you can build a decent HAB tracker under 50€, but if it weighs 200g (which is a pretty optimistic guess with the batteries, cameras, etc.) the helium to fill the balloon can cost you 200€ or more, which is just too much for many makers like me.
So, as you can guess, picoballoons solve this problem by just not being bulky and heavy. Picoballoon is just a word for a light HAB. Light, what do I mean by light? In general, picoballoons are lighter than 20g. Now, just imagine that a processor, transmitter, a PCB, GPS, antennas, a solar panel and also a battery with a mass same as a disposable coffee cup or a spoon. Isn't that just insane?

https://www.instructables.com/id/How-to-Make-a-Picoballoon/

Impressora 3D da loja? E mais uma carrada de Mecanismos, Moldar chapa plástica em casa, Kit de Electónica para Iniciados, e um Canhão para receberem em casa!

Espero que tenham tido um... 

... E desejo-vos um próspero Ano Novo!

 
A Velleman, que já referi antes, não pára!

Ainda temos mais novidades, sobre a Velleman, mas comecemos por esta GRANDE novidade...

Podem comprar as Impressoras 3D da Velleman, as Vertex, pela Internet, ou apenas indo a Lojas de Representantes por todo o Mundo! 

Em Lisboa, por exemplo, é só ir à Niposom, no Areeiro, encomendar um desses 3 Modelos, e levantar à Loja, quando chegar!

Têem 3 Modelos, uma Delta,  uma Cartesiana, e uma Micro-impressora!

Vertex 3D printers

Learn how to build and operate your own DIY 3D printer.
Accurate, affordable & open source
3D printers designed for Makers.

https://vertex3dprinter.eu/

E no resto do Planeta...

Vão a este Link, abaixo, e vejam, por País, onde encontrar a Loja mais à mão:

https://vertex3dprinter.eu/find-a-dealer/

Este é um Mecanismo Bacano, no Youtube, ams não pára por aí, porque, ao lado na secção de "up next", no Youtube, figuram uma carrada de outros Vídeos de mecaninmos, uns momentos bem passados!

Reciprocating simple
trinityscsp

https://youtu.be/qtnSJ2RtcmQ

Uma Moldadora de Folha de plástico, a Vácuo, faz-vos uma quantidade sem-fim de objectos, por uma fracção do tempo e dinheiro que custaria imprimir em 3D, e por isso, cá vai mais um Instructable, porque agora, podem fazer o Molde na Impressora, e reproduzir n vezes...

Vacuum Forming Rig
stechi

 I wanted to produce a vacuum forming machine that would allow me to do small parts, just for experimenting. I wanted to go for a self-contained unit with its own heater and vacuum pump. I know you can do a lot with an oven and vacuum cleaner, but my challenge was to do something neater than that, a self-contained machine.
I won’t go into how vac forming works, because there are plenty of explanations on the internet. But the main concerns are to hold the plastic sheet, to heat it, to hold it on an airtight moulding table (platen) and to reduce the air pressure to make the moulding. In short, the heater softens the plastic sheet that is held in the frame. Then the frame is lowered onto the platen, where the object is. The vacuum pump underneath then draws out the air under the sheet so that the plastic forms the shape of the object; it cools and the job is done.

https://www.instructables.com/id/Vacuum-Forming-Rig/

 

Voltando à Velleman, peçam um Catálogo, onde figura este simpático Kit de Iniciação à Electrónica, que fara a felicidade de muitos Jovens Geeks de todas as idades:

The Velleman K/STARTULF

Soldering Kit for Beginners

This kit contains everything that the experts at Velleman would recommend for a beginner solderer, including a 110v soldering iron and lead-free solder. Included iron has a .04" bit tip and heats up in seconds, making it ideal for your quick-and-easy solder projects.

The Velleman soldering starter kit makes a great gift for new homeowners or board developers - really anyone looking to take up the practice of soldering. The kit is RoHS compliant and contains six pieces to get your soldering career started–all at a great value!

K/STARTULF Kit Includes:
 Soldering iron: VTS20U (20W / 110V AC)
 Lead-free solder wire
 Soldering iron holder: STANDLC
 Pair of wire-cutters: VT057
 Flashing LEDs minikit: MK102

https://www.vellemanstore.com/en/velleman-k-startulf-soldering-starter-kit

MADE IN... FABBING! 

 

Participem no Movimento Fabbing, pois podem encomendar ESTA Impressão 3D, no vosso País, na vossa  Àrea, promovendo a vossa Indústria fabbing nascente, na vossa Zona, no vosso cantinho do Mundo:

https://www.treatstock.com/3d-printable-models/41943-repeat-fire-gaus-cannon

Por exemplo:

Em Portugal, no Empreendedor Norte, parabéns, a Diverte, de Viana do Castelo já vos envia este revolucionário Canhão Gauss de Repetição, a casa, por isso, é Made in Portugal!

Impecável.

 

Filofab, façam o vosso Filamento 3D! E um Termoformador, um Site de Circuitos, Moldes de Resina, e durmam no carro!

A Impressão 3D gasta muito Filamento, por isso, cortesia da  Kas' Embedded Projects and Review, aqui vai a notícia desta máquina que produz a vossa própria mistura de Filamento:

Kas' Embedded Projects and Review
Kasriel Lewis

Possibly the biggest growing technologie today is the 3D printer, this is partly due to its decreasing cost. This drop in cost of 3D printers is largely due to the standardization of the technology as more printers use the same base technologies. The cost of filament however, whether standard or exotic, still remain relatively high.

D3D Innovations has been working to change this. Their filament fabricators allow anyone to create their own filament using various plastics, combinations and fillers. While the Filafab is meant for plastic “beads” the Filafab has had no issue working with plastic regrind from recycling plants. 

http://kasembeddedprojects.blogspot.pt/2017/01/create-your-own-affordable-specialized.html

A impressão 3D leva muito tempo, e gasta material que não é barato...

Solução?

Imprimam 3D uma vez, e façam N Objectos, através deste Termo-Formador por Vácuo, obra deste simpático grupo de Designers Belgas: 

THERMOFORMER / VACUUM FORMER / PATTERNMAKERDajoM  

Hi !

Let me introduce ourselves

We are a group of Industrial Design Engineering students from Belgium. For our product engineering course we had to make a tool that can embed a pattern in a sheet of PMMA. After looking for the best method we came up with a home made thermoforming machine.

In this instructable we will show how we did it.

If you have any suggestions to improve our design or you have any questions

please let us know in comments bellow

Have fun building it !

http://www.instructables.com/id/THERMOFORMER-VACUUM-FORMER-PATTERNMAKEKER/

Para responder a uma pergunta, encontrei um Site que vos faz a papinha toda, no que diz respeito a fazer parar um Motor, em fim-de-curso isto é, quando ou onde o movimento que vocês querem que uma máquina faça, tiver de parar...

É umSite com muito para lá pesquizar, vão lá:

Como usar micro-switches e chaves de fim de curso como sensores (MEC097)Instituto Newton C Braga 

Este é um artigo didático de 2007 mas que se mantém atual, pois os micro-switches sempre serão utilizados em projetos de mecatrônica. Pela maneira simples como o assunto é abordado , sugerimos sua utilização como texto básico ou mesmo apostila nos cursos de tecnologia ou mesmo técnico.

Micro-switches, deep-switches, chaves de fim de curso e até mesmo push-buttons podem ser usados como eficientes sensores para projetos mecatrônicos. Mesmo a sua limitação de fornecer apenas um contacto pode ser contornada em aplicações interessantes com o uso de circuitos eletrônicos relativamente simples. Veja nesse artigo como fazer isso.

Micro-switches, deep-switches e chaves de fim de curso com uma infinidade de tamanhos e formatos podem ser encontradas com facilidade a um custo muito baixo. Na figura 1 temos exemplos dessas chaves.

http://www.newtoncbraga.com.br/index.php/automacao-industrial/3906-mec097

Voltando ao tema da Moldagem, aqui, neste Vídeo do Canal Mold3D Channel, são objectos inteiriços que se produzem, e não invólocros ocos, com este Produto de moldagem, o Oomoo 30, e estar Resina, a Smoothcast 325:

Molding and Casting from a 3D print

Mold3D Channel 

3D Artist Greg Perkins demonstrates his process of taking a design from concept to realization. Using 3D Printing, mold making and finally casting. 

https://www.youtube.com/watch?v=G_Ert5cvRa0

Nas viagens de Exposições de Invenções, nãose sabe se se nãovai dormir no meio da estrada, ou os Hotéis estão cheios, por algum imprevisto, ou etc...
Por isso é uma boa opção, para nós e para todos, esta rede para Emergências várias: 

Conheça a rede de montar no interior do carro. Veja o vídeo

EDIMARCIO AUGUSTO MONTEIRO 

Se você já teve que dormir em seu carro, sabe que não é o lugar mais confortável mundo. Mas, às vezes, devido às circunstâncias, é preciso, nem que seja para tirar um cochilo. Mas uma empresa norte-americana quer mudar essa situação e lançou a Car Hammock, uma #Rede removível instalada no interior do veículo em 5 minutos.

Ela é presa nas partes traseira e dianteira do carro, ficando suspensa no interior. De acordo com a fabricante, a rede suporta o peso de dois adultos, ou seja, pode ser usada por um casal. Ela somente não pode ser utilizada em veículos de duas portas ou com bagageiro no teto porque não dá para montar. Outra exceção são os veículos mais antigos que não têm os bancos dianteiros reclináveis. 

http://br.blastingnews.com/carros-motores/2017/01/conheca-a-rede-de-montar-no-interior-do-carro-veja-o-video-001425817.html