Blog Posts

sexta-feira, 17 de novembro de 2017

Fritzing! E mais um Torno Gingery, Wi-Fi à medida, um Rocket Stove, e um Carregador Portátil

Montar circuitos electrónicos como se fosse um Jogo de Computador!

E ainda tem 3 esquemas de visualização, um, como se montassem um circuito numa Breadboard, outro com a tradicional visão esquemática, e outro inda, que permite levarem esse esquema para imprimir um Circuito numa Placa feita à medida para isso!
Querem mais?
Vem com vários circuitos já feitos, tanto a nível de iniciado, com o mais avançado...

Fritzing is an open-source hardware initiative that makes electronics accessible as a creative material for anyone. We offer a software tool, a community website and services in the spirit of Processing and Arduino, fostering a creative ecosystem that allows users to document their prototypes, share them with others, teach electronics in a classroom, and layout and manufacture professional pcbs.

Perdoem a insistência, mas um Torno quase de graça, e feito como um Hobby, é muito importante para um Engenhocas, tanto para obter um Torno...
Como para aprenderem como fazer uma Máquina, e qualquer outra, a partir daí!

Build Your Own (metalworking) Lathe - Part I

You can make an entire machine shop worth of power machine tools, using basic hardware store/home center supplies and scrap metal. Melt aluminum in a metal-pail furnace, using sand, charcoal, and a clay flowerpot! Cast sophisticated metal tool parts using supplies from a gardening shop and modified kitty litter! End up with a full machine-shop lathe ("the only tool capable of making any OTHER machine-shop tool, including itself!") for just the cost of your time, some scrap steel and aluminum, and a motor!

Mais numa coisa bastante útil para fazerem com as vossas Impressoras 3D!
Com isto, vão ter Wi-Fi por toda a casa, e o que é melhor, como vocês queiram, nos quartos que queiram:

Customizing Indoor Wireless Coverage via 3D-Fabricated Reflectors

Judicious control of indoor wireless coverage is crucial in built environments. It enhances signal reception, reduces harmful interference, and raises the barrier for malicious attackers. Existing methods are either costly, vulnerable to attacks, or hard to configure. We present a low-cost, secure, and easy-to-configure approach that uses an easily-accessible, 3D-fabricated reflector to customize wireless coverage. With input on coarse-grained environment setting and preferred coverage (e.g., areas with signals to be strengthened or weakened), the system computes an optimized reflector shape tailored to the given environment. The user simply 3D prints the reflector and places it around a Wi-Fi access point to realize the target coverage. We conduct experiments to examine the efficacy and limits of optimized reflectors in different indoor settings. Results show that optimized reflectors coexist with a variety of Wi-Fi APs and correctly weaken or enhance signals in target areas by up to 10 or 6 dB, resulting to throughput changes by up to -63.3% or 55.1%.


Dizem que este Inverno via ser o mais frio dos ùltimos 100 anos!
Por isso, é melhor terem este catrapázio no Quintal ou num canto na casa, porque um Rocket Stove;

-Funciona com galhos, cartão, e etc;
-Gasta muito mpouco combustível porque o aproveita até às cinzas;
- Como queima até o fumo, e o monóxido de carbono, é muito mais seguro, mesmo para dentor de casa!
Muito importante.
Atenção, a Introducção é mínima, mas as Instrucções, são muito completas:

Building a Rocket Stove for the Cabin

FPS combines my passion for hunting and wildlife conservation with the overall need for self sufficiency.

Há Carregadores Portáteis que resultam mais baratos que construír o vosso próprio Carregador, mas se como eu, coleccionam Sucata...
É de graça!
Por isso, mãos à obra:


Build Your Own Inexpensive Powerbank with 3D Printing
Matthew Mensley

Instructables user Nematic! details how to make your own portable powerbank from laptop cells, 3D printing and a little electronics savvy.
We’ve all experienced that unique feeling of helplessness and anguish that only a dead cellphone battery can bring. Cut off from the internet and contact with others it becomes impossible to navigate, and what the heck are you supposed to do while sitting around waiting for the bus/train/plane. It sucks.
Fortunately there’s no shortage of inexpensive power banks knocking around to keep you topped up with juice on your travels. But for the thrifty with time to kill and a handful of old laptop batteries lying around (a common scenario, we know) there’s an alternative.
In a short-and-sweet post over on Instructables, user Nematic! shows us how with nothing more than a few tools (3D printer, soldering iron and glue gun), a cheap powerbank module and some 18650 cells, you can make your own smartphone powerbank lickety-split. 

sexta-feira, 10 de novembro de 2017

Moldes impressos em 3D? E uma Oficina arrumada, um Manual de Injecção de Plástico, Parafusos & Porcas, e Salvemos o Filamento!

Isto é que é explorar a 100% as possibilidades da Impressão 3D!
Porque é lenta e cara, a Impressão 3D deve ser usada para produzir Moldes para injecção de Plástico, o que só DEPOIS resulta na producção em série de objectos, como deve de ser...
Aprendam como é que o podem fazer, com estes nossos amigos da Pinshape, que aconselho a subscrever:

Low-Cost Injection Molding Using 3D Printing
Pinshape Blog

It’s no secret that 3D printing is a great tool for affordable production of custom objects. With new 3D technology like the Formlabs Fuse 1, there are a variety of options availible for small batch production needs that help manufacturers save on cost-per part. However, in some cases injection molding is still ideal for scaling production needs.
In this post, you’ll learn how to combine 3D printing and injection molding for small batch production. By using 3D printing to cost-effectively produce your molds and injection molding to rapidly produce identical copies, you leverage the benefits of both technologies. In this tutorial, we’ll go through the process of designing your mold, choosing a material, and producing injection molded parts. By the end, you’ll have the knowledge to access the speed and cost-efficiency of injection molding processes.

Prova brilhante da Graça e Génio Femenino, a nossa amiga darbinorvar mostra aqui como se pode ser Engenhocas sem deixar a casa num Caos, com este Instructable que ensina a ter uma ordem e organização invejáveis, sem ter medo, no entanto, de trabalhar nos vossos projectos...
Muito bom.

How to Create an Amazing Workspace at Home

The idea is to create a functional and practical work area within the home that's accessible to all family members, friends, and co-workers. If you're looking to introduce your children to the world of making, or simply make it a bigger part of your everyday life, then there is a lot of appeal in creating a versatile area that automatically becomes the go-to place to fix broken things, learn new subjects, try out new projects etc.... While many people would automatically want to hide such a space in the garage or basement, it's a nice idea to make it a very central part of the home - by giving it such a prime location you communicate what an important part of your life this is or could be, and you make it easier for work to take place.

Já aprenderam como fazer os moldes, então aprendam como os desenhar, para que a peça saia bem-feita, com este White paper que podem descarregar:

Injection Molding from 3D Printed Molds

Why you should download

The majority of plastic products in the world today are manufactured by injection molding. Download the white paper now if you want more information on:
 How desktop 3D printers can be used with injection molding machines
 Creating molds in-house to produce small, functional parts for final products

What you will learn

Machining custom-designed metal molds can be prohibitively expensive and time-consuming. Download the white paper now to learn:
 The steps and results of Formlabs' test with Galomb, Inc., a manufacturer of benchtop injection molding machines
 Recommendations and best practices for injection molding with 3D printed molds
 Suggestions for designing and 3D printing molds

Algo que paralisa muita construcção de Protótipos, é a necessidade de produzir uma caixa, ou o que seja, com parafusos, e porcas...
Pois cá vai um Tutorial sobre como desenhar as vossas Engenhocas para Impressão 3D, sem perderem a paciência a tentar imprimir uma rosca que vai eventualmente moer...
Porque usam Porcas em metal!
É bom.

Adding Screw Threads to 3D Printed Parts
Downloads , Tutorials

At Formlabs, we design lots of functional parts for printing on the Form 2 (our stereolithography, or SLA, 3D printer). These parts include things like internal prototypes used for R&D, jigs and fixtures that will be used on our manufacturing lines, and parts for design reviews before the final part is injection molded from a material like nylon.
No matter the application, we often find ourselves needing to combine multiple parts using screws, and now that we’ve released an improved formulation of our Tough engineering resin, the differences between “looks like” prototypes and functional prototypes are decreasing.
This article is a guide to using screws in 3D printed SLA parts. There are many other ways to attach multiple 3D printed parts together, but if you need to repeatedly attach and detach components and want robust mechanical fastening, there's no real replacement for genuine metal threads.

Ainda não chegámos ao fim do Rolo de Filamento, e a Humidade e o Pó já fizeram estrago, tornando o Filamento numa porcaria que arruína as Impressões...
E a nossa paciência!
Mas já não acontece, se colocarem o Rolo dentro desta caixa à prova de àgua, com estas saídas para o fio.
Atenção, que a Licença destes objectos 3D não permite a venda,a penas o uso individual:

Filament dry box for 3-4 spools of filament

My dry box for 3 - 4 spools of filament. There are many dry box plans out there. This one is mine.
The rod is at a good height for most spools when using a pair of spool hubs on each spool
1 Sterlite 20qt air tight box.
24 3mmx10mm machine screws (3mm x 8mm will work but I like a little bit of thread sticking out of my nylocks)
24 3mm nylock nuts
24 3mm washers
1ft 3mm OD x 2mm ID PTFE tube.
1 12in 5/16 threaded rod

segunda-feira, 30 de outubro de 2017

CNC sobre rodas! E reparar Stl, Moldes para Resina, Resina transparente, e Impressão 3D para tudo!

Isto é uma maravilha!
Só precisam de pousar uma destas máquinas no Material que quizerem trabalhar, e não há limite para o que possam fazer!
Mais portátil que isto, só a máquina seguir-vos de casa, como um Cão!
Já vai quase em 10 vezes a quantia necessária, só por isso, se vê o interesse que já despertou, e com toda a razão...
Quero uma.

Trailer video of Goliath CNC, a portable and autonomous CNC machine designed to make any idea of any scale, in every space.

Goliath CNC - An Autonomous Robotic Machine Tool for Makers

A portable robot that mills, cuts, and engraves to turn BIG ideas into tangible items with any materials and various CAD file formats.

Tudo funciona, no papel, mas quando passa à Impressão 3D, surgem as dores-de-cabeça...

Cá vão mais 7 maneiras de editar e reparar os vossos Objectos em formato Stl, e todas elas, à borla, que é o mesmo que dizer, grátis:

7 Free STL Editors + How to Edit and Repair STL Files
Frederik Bedrich

How do I edit STL files? That is something any 3D printer owner sooner or later wonders. After all: Ready-made STL files are fine. But what if an STL file you downloaded lacks some features, is damaged or you need only a part of it? That’s when you need an STL editor.

Acho que é um desperdício de tempo e dinheiro, fabricar em série, usando uma Impressora 3D...
Que pode muito bem fazer apenas UM Molde, para daí, se criar um número infinito de peças!

Por isso, este método é uma boa maneira de lucrarem a sério com a Impressão 3D:

How to make resin copies of a 3d printed object. Mold-Making Tutorial.

Long, boring video about taking a 3d printed part and making a mold of it. So far, all of my 3d printed parts have been modeled in Autodesk's 3d Studio Max and printed at Shapeways.

Há Materiais que se encontram nos sítios mais exóticos, e que servem mesmo a calhar para uma data de Engenhoquices...
Por exemplo:
Esta Loja de Artesanato dá-nos esta notícia dum material, uma Resina para embutidos transparentes, MAS, lembrem-se que podem fazer muita coisa com isto, de Cockpits para Modelos de Aviões, a Objectos Transparentes de toda a espécie, ou peças transpartentes:


NEW Easy to Use, No-Mix Resin Product!!!
Gifts of Avalon

We are delighted to be carrying a few different sealers and lacquers that open up all sorts of doors for creative projects using bezels, metal blanks and just about anything else your imagination thinks up!
The first product is a 3D lacquer that is FANTASTIC for sealing projects! It dries to a crystal clear finish that both enhances and protects your projects. And no mixing required! I use it all the time to protect my metals when I apply Gilders Paste or do embossing.

Se leram tudo isto até aqui, cá vai a recompensa, uma grande ajuda, como aproveitarem as vossas Impressoras 3D para substituír toda a espécie de peças que já não há, ganhando alguns cobres, e a admiração de muitos que ainda acham essas Impressoras 3D um "Brinquedo"...

How to Make DIY 3D Printed Parts for Just About Anything
Frederik Bedrich

We’ve all been there. You fiddle about with a gizmo or furniture piece of some sort in the home and a piece just snaps off. Shoddy flimsy plastic is the culprit, and the irritation it brings is endless. Gluing the piece doesn’t help, and you resign to living with the original doodad as a shadow of its former self; functionally fine, probably, but still not quite right.
What if we were to tell you that there’s an answer to replacing such non-essential but easily missed parts? It’s rather simple — make it yourself! With the lowering in costs for personal home 3D printing, and the rise in competitively priced print bureaus, acquiring replacement 3D printed parts is a cinch.
So settle in and read along as we outline the ins-and-outs of creating 3D printed parts for games, toys and other such home objects.

domingo, 15 de outubro de 2017

2,5 D? E fundição a partir de 3D, mais uma fonte de boas ideias, Moldes a partir das Impressões, e como emendar erros de Impressão,

Arquitectos, Designers, Publicistas, e Inventores, isto é uma Ferramenta incrível!
Quaisquer novos Profissionais, se se juntarem para, em conjunto, comprar uma destas Máquinas, vão CONVENCER a sério, nos Protótipos...
Trata-se duma máquina que reproduz Texturas como Tecido, Tijolo, ou o que quizerem, o que permite Protótipos e Maquetes dum nível fantástico!
É bom.


Casio Mofrel 2.5D printer makes realistic fabric and leather samples
Brittany A. Roston

Casio is the latest company to showcase a cool new technology at Japan’s CEATEC event. The company recently demonstrated Mofrel 2.5D printing, an almost-3D printer that can produce materials with a texture like that of leather or fabrics. With this technology, sheets of textured ‘leather’ and ‘fabrics’ can be printed on-demand with various designs, then colored through a separate printing process.
Whereas 3D printers produce objects layer by layer out of plastics, Casio’s 2.5D printer is able to print very thin layers onto sheets of paper. These layers mimic the texture of materials, giving designers a fast on-demand way to test out a design, including getting a real-world feel of it, before creating actual samples with actual materials.

Enquanto não se vislumbram Impressora 3D de Metal, a preços mais acessíveis, eis como se faz, para transformar os vosso objectos, em peças metálicas:


Molding metal by conventional casting methods can be an expensive, time consuming endeavor. However, with 3d printed molds and low temp alloys, it is now possible to create 3d printed molds quickly and cost-effectively as shown here. The final molded pieces can be sanded, polished or painted and withstand more punishment than 3d printed pieces will. Now, you can go from concept to CAD to metal casting in less than a day!

Se se perguntam como é que arranjo tantas boas ideias para divulgar, cá vai uma pista, uma só imagam no Pinterest leva a várias Colecções de tema semelhante, o que nos permite encontrar estas jóias, 507 Movimentos, um brinquedo rastejante, e um sem-fim de outras Engenhoquices...
É bom!


507 mechanical movements, crawl wooden toy, simple Theo Jansen Mechanism, plus 240 other Pins!

E se não o sabem, as Impressoras 3D foram feitas mesmo para isto, criar MOLDES, dos quais se fazem N cópias diferentes, por isso, aprendam como poupar tempo e dinheiro, criando a vossa própria Fabriqueta em casa!

Making a 3-D Printed Mold

I recently had a project where I needed to create a couple dozen identical foam ear shapes.  Casting from a mold is the clear solution here.  However, the ears needed to fit onto an existing product, so I knew some tweaking of the design would be necessary to get it right before I could make the dozens. I was able to use Instructables' Objet Connex printers to make my molds, based on CAD drawings I made, and after a couple tweaks I got the design right and was able to make the full run.
In this Instructable I'll share what I learned about how to draw a CAD for a mold and 3D printing it out. I will assume you have access to and moderate proficiency with a CAD system (it doesn't matter what kind). For the printing, if you want to make your own but don't have access to a 3D printer, there are many services which print for a fee, or Instructables may be able to do that for you. The actual casting I will leave out as I was using an expanding polyurethane foam, which is not a generally applicable material.

E cá vai um autêntico alívio para os vosso Sofrimento, o que fazer, quando a Impressão falha, caso por caso!
Isto é que é ser vosso amigo! 

Print Quality Troubleshooting Guide

This guide is a great place to start if you are trying to improve the quality of your 3D printed parts. We have compiled an extensive list of the most common 3D printing issues along with the software settings that you can use to solve them. Best of all, the guide uses a large collection of real-world images to make each issue easy to identify when examining your own 3D printed parts. So let’s get started!
Thumbnail Overview
Use the thumbnails below to identify the picture that most closely represents the quality issue that you are seeing in your own 3D printed parts. You can click on the thumbnail to jump that that portion of the guide for immediate recommendations on how to resolve the issue. If you are not able to locate your issues from the thumbnails, feel free to scroll down and read through each section of the guide in more detail. There are plenty of useful tips to learn that can help improve your 3D printed results!

quinta-feira, 5 de outubro de 2017

Construír Robots! E Visão para os quase cegos, uma Serra de lixar(?) Óculos de sol de frascos, e Lego das Impressoras!

Querem fazer o vosso Robot, em casa?
Aprendam com o nosso amigo DJ Harrigam, como o podem fazer, um Manual de categoria, para fazer toda a espécie de Robots:

Designing And Building A Robot
DJ Harrigan
Introduction To Robotics And Robot Making  
For a hundred years, robots, automatons or otherwise synthetic assistants have been part of our popular culture. While they’ve mostly been restricted to the silver screen, thanks to increasingly affordable and powerful electronics, making robots has never been easier. Now, if you’ve got the determination and a few bucks to spare, you can design and build a robot to your liking. Maybe even a cool MeArm as depicted in the illustration above. 
Although robotics is more accessible than ever, any robot is a complex system and requires at least a basic understanding of electricity, mechanical design and programming to create. Never fear! My goal is to explain the high level concepts that make for a successful robot as well as point to the right tools and materials that the bot builders of today are using in their designs. It is a challenge, but there’s nothing quite like taking raw materials and making them come to life. Let’s get started! 

Algo que importa divulgar por todo o Mundo Lusófono, os quase-cegos poderão VER outra vez, com esta maravilhosa Enhenhoca, por isso, cá vai a Referência:

How Does eSight Let The Legally Blind See? 
eSight houses a high-speed, high-definition camera that captures everything the user is looking at. eSight’s algorithms enhance the video feed and display it on two, OLED screens in front of the user's eyes. Full color video images are clearly seen by the eSight user with unprecedented visual clarity and virtually no lag. With eSight’s patented Bioptic Tilt capability, users can adjust the device to the precise position that, for them, presents the best view of the video while maximizing side peripheral vision. This ensures a user’s balance and prevents nausea – common problems with other immersive technologies  

Lixar como deve de ser, não é brincadeira...
Por isso, vejam só esta bela ideia para lixarem Madeira com um resultado fantástico, bem fluído e contínuo:

Sanding Saw
For those of us who collect homemade sanding blocks or need to sand around corners and curves, may I present to you this homemade bow sander.
This bow sander is great for tight, curved places and works from both top and bottom.
Maybe your great grandchildren will look at yours someday and ask, “What was that thing for anyway?
If you like the video please Subscribe to my Youtube Channel
I would also apologise for my English as a non-native English speaker some terms are very difficult for me. Forward, Instructable!! 

Para terem um par de Óculos de Sol feitos em casa, aproveitem as propriedades de bloqueio da Luz Azul destes Frascos de remédio!

Blue Light Blocking Glasses From Pill Bottlesthe6thstar 
So recently I read an article about how wearing orange glasses at night can help you sleep better at night. I wanted to test this for myself, and being the cheap person that I am, I made my own and it took me about an hour and a half. So yeah, that's what this instructable is.

Uma pequena Maravilha, tanto para terem peças de Lego à vossa maneira, como para aprenderem como mexer no porreiríssimo Programa FeeeCad, é esta quantidade de peças de Lego que podem imprimir.

Lego bricks in FreeCADmase 
People of FreeCAD
SO.... What about to create a LEGO BRICK libary for FreeCAD :)

The aim for this projekt is learning useful stuff:
[*] get use to with freecad
[*] improving my english
[*] get use to git (maintaining the libary)
[*] And MAYBE create addon for adding the lego bricks and to put them together.
Help is very much appreciated. I would be happy to have some feedback about my drawings.
[*] right measurements about the bricks
[*] opinion about the constructions ( how they are made)
[*] opinion about the construction is properly draw. (I read that in an .fcstd u can verify how the construction is drawn)
Here is the url of the legolib

Feel free to suggest, help and correct me :)
kindly greetings from Germany

quarta-feira, 20 de setembro de 2017

Façam a vossa Impressora 3D! E magia LED, Acabamento 3D, Peltier para Câmaras, e Craftware

Se têm acesso a uma Impressora 3D, dalguma Fablab, ou de alguém que conheçam, podem, em troca dumas Bobinas de Filamento extra, e mais uns Trocados à parte, ter esta bestial Base CNC, que pode ser uma Impressora 3D, uma Fresa CNC, uma Cortadora Laser...~
Ou as três, com 3 cabeças de encaixar!

É bom!

Cheap Scalable Arduino CNC (Plotter, Mill, 3D Printer...)

In this Instructable I'll show you how to make a cheap scalable CNC machine controlled by Arduino. My printer has a usable volume of 1500x1000x200mm. It will provide a computer controlled plate where you can add any kind of tool for your application: laser, mill, drilling machine, 3D printer head, pencil…
In order to maximize customization capabilities and reduce costs:
Most parts are 3D printed
Open source hardware / software
Tube profiles work as Rails
If you are looking for a CNC but don’t want a single purpose thousand-dollar machine, this is your project!!
Be sure to watch the video above, and if you like it please consider subscribing to my channel which has been recently created and will be updated with new amazing projects.
Before starting you should know the usable length, width and height you want for your machine. The less heigth (Z) the better.
This project is based on Allted's design CC BY-NC 3.0 

Algo fácil de fazer, mas espectacular, é este Globo LED que podem fazer, e ter a satisfação de criar, sem dar cabo da cabeça...
Claro, isto vai-vos convencer a mererem-se em mais Projectos, mas há Vícios bem piores! LOL

Make Your Own POV LED Globe

In this project I will show you how I combined a couple steel pieces with an Arduino, an APA102 LED Strip and a Hall effect sensor in order to create a POV (persistence of vision) RGB LED Globe. WIth it you can create all kinds of spherical pictures or even letters which is a definite eyecatcher. Let's get started! 

Uma Impressão 3D para uma Prova-de-Conceito, não precisa de ter um acabamento especial, mas há alturas em que o Aspecto vende uma ideia.
Para isso, ou seja lá para o que for, Montras, festas, Modelos para Arquitectura, etc. vejam bem aqui, como obter um Visual de fazer chorar as Pedras da Calçada...
Belas Dicas do Site: Let's Print 3D

Guide: How to Finish 3D Prints

While I have 3D printed hundreds of designs over the years, not once have I taken the steps to finish a single print. There are plenty of videos and articles covering the process but they are often a general overview and leave out small but important bits of information. For someone inexperienced like myself who prefers to follow explicit instructions, the artistic process can be a rather daunting task. Unfortunately I purchased my 3D Printers for costume and prop design and can’t leave them unfinished forever, where this guide will cover my successful, albeit awkward adventure into the task of post processing 3D prints. 

Não sei se não se poderá usar isto para cabeças de extrusão das Impressoras, ou mesmo para os Computadores sobrecarregados dos Engenhocas, mas já para estas Câmaras espectaculares, é uma Maravilha...

Peltier Cooling for ZWO Astro Camera

After stumbling on these two YouTube vids showing how to add cooling to an uncooled ZWO Optics Astro Cam
DIY Guide Making a Peltier cooling fan mod for ZWO ASI120MC S
Peltier Cooler for ZWO Cameras - Based on Martin Pyott's Vid
I thought I'd give it a go myself.
My completed mod is shown in the image above. 

A Impressão 3D depende em tudo duma boa traducção dos nossos belos sonhos em 3D, em GCode que produza algo de jeito.
Sem isto, é só Filamento estragado, acreditem que sei do que estou a falar...
Por isso, estes Programas Grátis, que encontram na Net, são tão importantes!

CraftWare is a FREE, fast, easy-to-use slicer software that converts your digital 3D object into a .gcode toolpath format understood by most 3D printers.
CraftWare primarily works as a slicer for solid 3D digital objects, but it is also an excellent tool for many other tasks. You can interactively manage your prints, thus reducing build time and finding the optimal build supports. CraftWare also utilizes the most impressive gcode visualizer on the market; this allows you to see each print layer-by-layer, from any angle, easily allowing you to detect any places that you may want to modify before printing. It is basically like seeing a finished print in front of you before you press the start button.
CraftWare utilizes dual channel communication for real time interaction between the software and the printer -just another great tweaking option.