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Mostrar mensagens com a etiqueta máquina de limar. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta máquina de limar. Mostrar todas as mensagens

quarta-feira, 23 de outubro de 2013

Um Vídeo inspirador, um Homem Superior, Freemill à borla, e uma Fresa CNC

Ora, continuando como ontem na senda das Máquinas de Limar, com as quais qualquer um pode fazer peças porreiras, eis este Vídeo, de Allen Powell.
Aqui, não só se podem inspirar para esta máquina, mas para tudo o que achem na Net, e queiram duplicar, desde várias adaptações de Dremels, a máquinas CNC, ou não, por vós imaginadas, até às maravilhosas Máquinas de Reuleaux...
Porque é só fazerem um Molde em madeira, e derreterem Alumínio ou Zamak para 2 caixas de Areia de Fundição, e terminarem o trabalho na Oficina:




SHOP BUILT DIE FILER

Allen Powell

I found a photo on the the web of a old bench top die filer and thought I would try to make a copy. Having no plans I guestimated the dimensions and made a pattern, the most difficult part of the project. This project was good practice for making patterns, casting, and using my lathe and mill. The result turned out better than I expected.









Há gente que não se rende às Dificuldades, ou como diria Pessoa, tudo vale a pena, quando a Alma não é pequena.
Querem fazer uma Imressora 3D? 
Não têem quase nada? 
Pois vejam-se no exemplo deste grande Africano, que do Lixo, e 100 Dólares de Electrónica, fez uma Impressora!
É preciso é VONTADE!



African man makes a 3D printer from e-waste

Cameron Naramore

Not long after I joined the 3D printing group on Google+ there was a post made by a newbie about building a 3D printer out of parts from traditional paper printers and other electronics. There was a general consensus among responses that sounded a lot like a scoff. A few makers commented that while it was technically possible, it would be significantly more tedious to get working and the overall quality of prints would be subpar. Their response was based on the fact that firmware for RepRaps is written to communicate with off-the-shelf hardware. For instance, motors in paper printers don’t operate the same as the stepper motors that 3D printers use. 
For that reason, Kodjo Afate Gnikou bought stepper motors for his e-waste sourced 3D printer that he calls W.AFATE. He lives in Africa, pushing on the forefront of innovation. Much of the continent’s population is far from anything like the big box stores of the US, and the scarcity puts a premium on working with whatever is around. In Africa that’s heaps of broken computers and office electronics. For Afate that was a computer case, rails and belts from discarded paper printers and scanners, and the insides of a diskette drive. Purchasing the electronics and stepper motors set him back only $100.





 




Continuando no CNC, o Software FreeMill, continua a evoluír, como um Programa completo de fresa CNC, e vocês continuam a poder descarregá-lo à Borla, que é o mesmo que dizer, Grátis...
É bom!



FreeMILL 3D Milling package

FreeMILL is a fully functional 3D Milling package built on MecSoft Corporation's world renowned VisualMILL CAM package. With this product you will be able to import VisualMILL, STL, Rhino .3dm, VRML and Raw Triangle files, run full simulations on your part models and be able to output G code to your machine tool. The product comes with about 50 pre-built post-processors. This product is absolutely FREE! There is no time limit, part limit, post limit, or line of code limit in this product.
Available file imports include: VisualMILL, Rhino, STL, VRML. 



 

 






...Mas para o quê, ter esse Programa, se não tiverem uma Fresa CNC? 
Mais uma vez, um Engenhocas mostra-nos como se faz, neste Instructable, onde tudo vos é explicado, por este jovem e prometedor Engenhocas Holandês:




Building a CNC router

Benne

This instructable will show you how I built my CNC router. I hope you can draw some inspiration from my build and that this instructable will be helpful for your future projects. This instructable shows all the steps I went through in designing and building this CNC router.

The main thing I like about a CNC router, is that it is so versatile. You can use it as a drilling machine, a router, a saw, a mill and even as a lathe. Because my workshop is very small (it’s more like a shed), I didn’t have the  room for all of these tools, but I still wanted to be able to make very precise parts for different projects. That’s why I started to think about building a CNC router.

After doing some research I decided to design and build my own machine. It took my almost 6 months to build and design the machine from start to finish. Before starting the actual designing of the machine, I did a lot of research on the web. I recommend taking a look at the following websites: cncroutersource.com and cnczone.com. These websites will provide you with a ton of information and answer most of your questions on CNC related topics.


  
 

segunda-feira, 21 de outubro de 2013

Inventor Brasileiro vence! E um Livro sobre 3D e o DAVID, uma Limadeira, e um Sensor de Proximidade

Eis uma boa Notícia, dica de João Marcelino, um Inventor Basileiro venceu a sua longa batalha legal, para ser reconhecido como o autor do DDC (Discagem Direta a Cobrar):


Justiça reconhece morador de Florianópolis como o único inventor do sistema de chamada a cobrar

Ação levou mais de 23 anos até decisão do STJ que confirmou que Adenor Martins de Araújo receba royalties pela criação

Quando a filha de 11 anos ficou no Centro de Florianópolis sem dinheiro para pegar o ônibus e isolada de qualquer comunicação com os parentes, Adenor Martins de Araújo entendeu que aquela situação precisava de uma inovação. O resultado, todo mundo conhece por uma frase: “Chamada a cobrar. Para aceitá-la, continue na linha após a identificação”.  Depois de 33 anos da solicitação da patente, o STJ (Superior Tribunal de Justiça) reconheceu este mês o ex-funcionário da Telesc (Telecomunicações de Santa Catarina) como o único inventor do DDC (Discagem Direta a Cobrar).

http://m.ndonline.com.br/florianopolis/noticias/111107-nao-finalizada-o-inventor-do-ddc.html








O sistema de Digitalização 3D, através de Laser, DAVID, está cada vez melhor,  como esta imagem demonstra,
 


...e para fazerem o Download, e lerem mais sobre o livro abaixo, vão ao Link da Newsletter:
 


Book "Practical 3D"
There is a book about DAVID! Well, not just about DAVID, more about 3D scanning in general, presenting several scanning techniques. But DAVID has its own chapter in it.
The author, German journalist Florian Vierling, has previously written practical textbooks. Now he jumped into 3D scanning and wrote an exhaustive overview over 3D scanning techniques. The book is written in English and German (side by side), and it has lots of great pictures showing scanner hardware, setups, and results. At some points it goes into technical details, but it's well explained and always easy to understand. 

 


 




Esta Máquina de Limar, ou Die Filer, que encontrei na Net, merece a nossa atenção, poque com esta Maquineta, que podem construír com Sucata, fazem-se Peças para de tudo um pouco...
E o Site tem mais coisas bacanas, como a Forja de Ar forçado,, mais abaixo, também feita à base de Sucata, por isso, dêem lá um salto:





Die Filer: Cost $0
A die filer is basically an upside-down jigsaw, which instead of holding a saw blade, holds a file. This machine will be able to do precise filing of intricate shapes without all the hard work of doing it by hand. This will greatly assist me as I find that I can only file or saw for a few minutes at a time now - isn't getting older a ßüĝĝêŕ. The unit I'm working on is a 35yr old 'Stanley Bridges' accessory, designed to attach to an electric drill, converting it to a jigsaw. Nowadays with jigsaws becoming cheaper, I have upgraded to an 'all-in-one' jigsaw & retired this one. The materials I plan to use are all scrap, hence no cost. The new file holding head is an old shaft (annealed), grub screw & belt. The pulley was machined from an old VCR part.

http://home.iprimus.com.au/stevor/diefiler.htm







 



E não encontram um Sensor de Proximidade mais simples que este, por isso, não há desculpa para não terem um, nos vossos Projectos, quando necessário:



 

Use a DIY Proximity Sensor to Automate Your Haunted House

DIYHacksAndHowTos

The special effects in a haunted house need to be well timed. The best way to do this is to use sensors to detect where your guests are in the haunted house. So I am doing a series of projects that demonstrate a variety of sensors that you can use to automate your haunted house. Last week I showed how to make a simple DIY pressure plate switch.

This week, I am going to show you how to make a proximity sensor and how you can implement it to activate special effects.