Learn about Casting Molds and the different types of Casting Molds

Metal Casting

Casting MOlds is basically the manufacturing process through which a liquid material is emptied into a mold that includes a hollow opening of the desired art or shape and is then allowed to harden. This hardened casting is then removed and broken out in order to complete the process. Apart from using sand as the main mold material there is a metal that is used as the mold. Normally, a cast meehanite or an iron is used as the material for mold and the objects are made from the sand or metal. The cavity surface is basically covered with a thin layer of material that is heat resistant which can be either sodium silicate or clay.

Casting Molds: The casting molds are actually pre heated to nearly 392 degree Fahrenheit before the metal is pored in the cavity. The design of cavity for these casting molds does not chase the same principle for shrinkage like in the sand casting molds. This is because of the fact that the metal casting molds heat up and enlarge during the pouring process and so the cavity does not need to be expanded like in the sand castings. Nevertheless, care should be taken in order to ensure a correct thermal balance as you can use external water source for cooling or you can also opt for suitable radiation techniques.

Permanent Casting MOlds : Although these permanent casting molds are not as flexible as the sand castings which allow to be used in different metal patterns or designs but these lower the cost of producing the part. When there is a production run of more than 1000 parts the permanent casting molds would produce much lower piece of cost part. Apart from this, the break even point also depends on the density of the part. There are more complex parts that are favored when you use these permanent casting molds. The typical part size would be around 50g to 70 kg and the basic materials used are medium and small parts that are made from magnesium, aluminum and brass and also their alloys.

Slush Metal Casting : The slush casting molds are actually a special type of permanent casting molds in which the molted metal is not allowed to solidify completely. After gaining the desired wall thickness the still not solidified molted metal is then poured out. This is basically used in order to make void ornamental objects like lamps, candlesticks and statues.

Corthias Casting Molds: This type casting molds is yet another variant of the permanent casting molds in which basically a plunger is used to pack the molted metal through the spure hole. This type of process allows thinner walls and to produce greater details.

Vacuum Permanent Casting Molds: This type of casting mold is also part of the permanent casting mold family and is very similar to the lowe pressure casting molds. In this type vacuum is used rather than a pressure. You can make thin wall casting through this type of casting molds like in the other low pressure casting molds. Apart from this the results are high as there are no risers used.
  
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cnc controlling software

What is CNC Controlling

Since we are dealing with machines that do work for us, we need to control those machines somehow. We need to control them for safety reasons as well. If you give a machine improper commands it can easily get out of control and cause harm to you or the part you are machining. We want to give appropriate commands to our machines, at appropriate times so they are not "out of control".

The programming language that these cnc machines use is called GCode G-code has been around since the early 60's. There are a number of variations of G-code, but most are very similar to one another. See the previous section for a sample of G-Code.

We need a computer to interact with our CNC Router. Our computer will send signals to our CNC machine. In-between our computer and our CNC machine sits a controller. A controller converts commands into signals that are used to control the motion of our machine.

As these signals are sent out of the controller, they go to either stepper or servo motors. This is how we create motion. These cnc motors drive our various axis on our machine. While we are moving our axis, there is generally a cutting tool of some sort removing material. This is the machining process coupled with CNC.

Here is a brief description of the two types of motors generally used in CNC:
Stepper motors:
Simple design
Easy
Generate torque at low rpm
Do not know their position in relation to the program

Servo Motors:
Generate torque at high RPMs
Generally need gearing of some sort to be effective
More sophisticated
Can maintain their relative position, thus, they can be more accurate

CNC Machine Controllers
Controllers generally stand alone near the CNC machine. They act as a translator between your cnc control computer and your machine. Generally, they add quite a bit of cost to a CNC machine as well. Controllers can cost anywhere from $1000-$20,000 or more depending on their sophistication.

CNC Info Community Site:
If you need more information about CNC, click over to http://www.CNCInformation.com You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC Art when you join the community.

Rapid Prototype Basics

advantages of prototyping

Invention Prototype is a process of software development wherein physical objects are automatically constructed by means of SFF or solid freeform fabrication. In the process of rapid prototyping, a prototype or working model can be constructed quickly, and tested for its functionality, performance and output. The new features or ideas can be illustrated well in the prototype and early user feedback can be gathered with regards to the product. There are numerous advantages of rapid prototyping.

Benefits of Rapid Prototyping:

Significant advantages of a Invention Prototype include reduction of project cost and risk. Generally, one or more prototypes are developed in the process of software development in a series of incremental and iterative steps. Every prototype that is manufactured is based on the previous designs’ performance and it is a corrective process through which the past design defects or problems are corrected. The product is readied for production when the prototype is refined as per requirements and meets all the design goals like manufacturability, robustness and functionality.

Another great advantage of rapid prototyping is that it finds use and application in almost all the industries. The other advantages of rapid prototyping include the following:
Visualization capabilities are enhanced in the early designing phase with use of rapid prototyping. The user gets a fair idea of how the final product will look by observing the working model in early design stage.
The design flaws can be detected before manufacture process is initiated.
Rapid prototyping enables producer and users to participate actively. Active participation between the users and producer is encouraged.
The user is able to get a higher output.
The development costs are reduced considerably, hence rapid prototyping proves to be quite cost effective.
Rapid prototyping increases the speed of system development.
With Prototyping , it is possible to detect deficiencies in the earlier prototype, coding activities and requirement analysis.
Rapid prototyping assists in refining the potential risks that are involved in the delivery
The different aspects of the prototype can be tried and tested and immediate feedback is possible form user.
Better communication is enabled between the users and designer as there is clear expression of requirements and expectations in the start itself.
Rapid prototyping enables easy delivery of high quality product.

Cost and Time Savings:

Savings of development time and process costs are some of the greatest advantages of rapid prototyping. Time can be saved by reducing the amount of time required to produce the prototype parts and tooling. Production costs are lowered as the mistakes regarding tooling are identified in the early stages and hence, the modification costs can be cut down in the actual production.

Advantage of Innovation:

Rapid prototyping can be used in many innovative ways. There are many firms that use rapid prototyping innovatively, hence, offering additional benefits. The advantages of rapid prototyping in innovative applications are advancement of new testing procedures and analysis, production tooling manufacture, improved communications across production departments and support of customized manufacturing. The new technologies can be used in a cost effective and successful manner with innovative applications of rapid prototyping.

Atomic Clock Thermometer: Telling A Lot More Than The Time Of Day

Most people are aware of the fact that atomic clocks are able to provide the most accurate time and they are able to do so because of measuring time through keeping track of vibrations within certain atoms. A special kind of atomic clock that has recently found many buyers is the atomic clock thermometer that can provide accurate readings about current temperature and even humidity levels, and of course, can also provide the most accurate time as well.

Helps Travelers

One of the reasons that atomic clock thermometers are very popular is that they help travelers know the time, temperature as well as humidity and that in turn means being able to dress according to conditions in the outdoors. There are different types of atomic clock thermometers and among these are those that work without needing any wires to connect the thermometer or hygrometer or even the barometer.

You can use an atomic clock thermometer to measure the temperature within a home or outside the home and such clocks can also display relative humidity and air pressure as well as show pressure trends. Some models of the atomic clock thermometer also have UV sensors that help to display the quality of indoor air and will also provide information about pollen dust as well as other forms of airborne matter.

If you like, you can choose to buy an atomic clock thermometer that can be mounted on a wall or you may want to choose one that stands on its own. Such clocks also have their own menu (interactive) that displays information regarding rainfall in the previous hour and even in the past twenty-four hours, and it can also show history of rainfall during the week gone by as well as for the last month.

It is also possible to buy an atomic clock thermometer that can also provide information about the speed and direction as well as gust of wind and they can also display various symbols signifying various weather conditions including sunny weather, cloudy weather, fair weather and rainy weather.

It is also possible to connect an atomic clock thermometer to a personal computer in order to gather information regarding weather conditions, which can then be analyzed as well as studied to obtain more insights about the weather in your immediate vicinity.

Another option in atomic clocks is the world atomic clock that provides you with the most accurate time no matter in which part of the world you happen to be.

Some advanced atomic clock thermometers are even capable of predicting snowfall or fog or even frost and they even have alarm systems which can be pre-set to different temperatures – both for within the home as well as without it.

The World Is Moving With Digital World Clocks

You can see digital world clocks in use in many places. Though they aren’t always digital, world clocks can be found helping business and consumers around the globe. What exactly is a world clock? What are some common uses? How can they be used by you, the average person?

What Is It, Anyhow?

Have you ever wondered what time it is in another place in the world? If you live in California, and your sister is in Japan, can you remember how many hours of difference there is in the time – and which way direction the difference is calculated – is she ahead of you? Or behind you in time? You probably want to know before you call her. That’s where a world clock comes in handy.

A world clock, whether digital, analog, or online, is a clock that displays the time all around the world, by stating the time in various cities. It can just show it in the cities that the need requires – like a train station that only tells times in cities that the trains are going to – or it can show times in many cities around the world. Some show the times based on which time zone the city is located in. Some show the time on a world map, others as a list. For some world clocks, like online, you can input the city you are interested in and it will tell you.

Uses In A Business Setting

World clocks, often digital, are found around the world in the business world. Many businesses rely on them for accuracy in their business dealings, like in an import/export type of business that needs to know the time in another area prior to making money transfers, phone calls, data feeds, meetings, etc. Some businesses don’t rely on them for a business purpose, other than to look professional and business-like. They can often be seen in the lobby of executive offices, as a wall clock.

Personal Uses For World Clocks

Many of us have used a world clock at one time or another, for the fun of it, if nothing else. If it is a digital world clock, it can tell in numbers what time it is in another part of the world. Isn’t everyone intrigued by looking at the time in another place….”So, it is 9:00 here on a Thursday night, but it is tomorrow afternoon where she lives? Wow!” It can be difficult to wrap one’s mind around, but seeing the numbers on a digital world clock can help.

Where To Find A World Clock

World clocks are easily accessible. You can buy one in a store, or online. They come as either analog or digital world clock types. Or you can buy software to install a world clock on your computer. You can also access online world clocks that are free, often with just as many “bells and whistles” as one you would purchase. It is worth looking online before parting with your money.

The new Squeak software development tool

Are you searching for a "software development program" with which you can do everything? Well, the solution to this question is Squeak as it is a mixed programming and desktop environment. It is a new-age, free with source code availible, full featured execution of the powerful Smalltalk programming language and environment. It is highly convenient as its virtual machine is written entirely in Smalltalk making it easy to debug, analyze, and change. You can say it is the vehicle for a wide range of projects from multimedia applications, educational platforms to commercial web application development. So, the search is over as even "a software development company in South Africa" have approved this vehicle!

The best thing is you can use Squeak's existing programs, objects and facilities and combine them in new ways and build your own personal application. It starts by developing with the fully OOP language Smalltalk or by interactively creating, manipulating, programming and browsing objects on the screen.

Highlights:

* Squeak costs you nothing and you can download it, use it, copy it and even sell your programs created with it.
* It is completely open source up to the last bit of the inner system.
* Being a cross system, it works identical on Windows, Mac, Linux, different flavors of UNIX, and some other operating systems, as a plug-in in web browsers and on some PDAs.
* Every code can be browsed, programs can be changed while they are running, and data can be inspected and altered directly.
* Squeak is used in varsities where younger children literally play with it and the older ones are educated in math and science with it.
* If you need full control over the program and its data while it is running then Squeak is the right choice for you.

So you may need Squeak for your children or even for own personal needs! Not as Smalltalk is a fast and low cost Software Development language.

A Business that supports Q-test

Quotium monitor is a performance monitoring "software development" program. Q-monitor collects and displays in real time all of the performance metrics of the network, application servers, web servers and databases. An automated error detective checks all of the data collected to get an immediate view of problems detected, of the component concerned, and of the time period during which the numbers are over the set margins. Thanks to this unique technology, "software development industry in South Africa" has accepted this tool like wildfire.

Q-test and Q-monitor are flexible software’s that enable you to quickly develop and run HTTP/S load tests, along with production monitoring tests, to help you judge the performance of web application environment's. Q-monitor is non-intrusive and no installation is required on the elements of the application tested.

Quotium adapts to the needs of the market and is constantly developing solutions that naturally integrate with Q-test in order to expand the scope of analyses. Each solution enables your experts to consult all of the performance indicators that are known and used.

What is Q-test? Q-test is a software program developed bt Quantium software development company that tests the performance of web applications. Testing specialists consider its very high injection capacity to be the highest performing on the market. Q-test is the ideal solution for companies that wish to efficiently optimize the performance of their critical application software. Also it is easy to use and offers much lower price than the competition. The Q-test injectors may be installed with latest Microsoft Windows XP. Q-test is comprised of several modules including Quotium Daemon, Quotium Center, or Quotium report designer.

Jobs can be included of one or more collectors, one or more scripts or a combination of both. It is possible to modify a load test to monitor the same target system by disabling the scripts it includes so that no load is generated when the job is run.

Scripts are created using Quotium script editor which records the HTTP requests issued by a browser during a web session. Collectors are used to monitor and record performance data during a job run. Results can be displayed while a job is monitoring or after a job is complete. Use report designer to design report templates in Microsoft word format.

Its about time somebody did it, Quotium enables a license to be bought that is enabled for the duration of a Task at hand, or the pay per test method. This offer, designed more for specialized service providers, enables them to offer more comprehensive services.

Chime Wall Clock Sounds Of Time:

There are many wall clocks that are on the market today.  Some of the more traditional and yet unique wall clocks are the cuckoo clocks.  On the hour, the cuckoo clock allows the resident cuckoo to come out through the doors and announce the time of the day through the appropriate number of cuckoos.  Other wall clocks can include very ornate and elaborate clocks that can nicely adorn the most elegant of living rooms.  In addition, a wall clock can be a simple clock in the kitchen that provides the time of day. 

Also there are clocks that not only tell the time but announce that time through musical tones.  This type of clock is known as a chime wall clock and not only can portray the time on the face or dial of the clock but announce the time through the appropriate number of musical tones or chimes.

If considering a chime wall clock there are a number of considerations that one can take into account.  Some of those considerations can include how the chime wall clock is constructed and the chime that actually emits from the chime wall clock.

How The Chime Wall Clock Is Constructed

When considering how the chime wall clock is constructed there are a number of considerations to take into account.  Those considerations include the materials used and other features added to the timepiece.

First of all it is important to realize that there is a variety of materials that can be used to construct the chime wall clock.  Foremost is the wood that is used.  The variety of wood used to construct the chime wall clock can range from American Cherry to Mahogany to Oak.  Obviously, the more expensive the wood that is used to construct the clock the greater the cost will be to the buyer.

Also, another construction factor to consider is the workmanship involved in the construction of the chime wall clock.  If the clock looks more sculpted or ornate, the cost will certainly be greater because of the additional crafting of the clock.

Other construction items of the chime wall clock can include added features such as a pendulum, a barometer, a glass casing that can be opened, etc.

Considering The Chime

Obviously, if considering the purchase of a chime wall clock, the interested party will have the tones or tune to be played in mind.  Some of those tunes can include St. Michael's, Westminster, or even God Bless America.  Generally, these tunes are played on the hour with the chime being sounded the number of times equating to the hour.

Additionally, available on the market, are simulated or actual antique clocks that chime out melodies or notes to signal the time.  Generally, these antique clocks are very expensive for they are handcrafted and built to keep time using quality workmanship.

 

The Untold Importance of a Free Spyware Scan

If you have a computer and use the Internet regularly, you are going to need to understand the importance of having a free spyware scan. Spyware protection is essential if you want your computer to stay clean of bugs and viruses, and run at its full capability.

Before you can find the best free spyware scan however, you are going to need to understand more about spyware in general and what it has to offer you.

Spyware

Spyware is a way for shareware authors to make money from a product, other than by selling it to the users. There are quite a few different large media companies that offer them to place banner ads in their products in exchange for a portion of the revenue from the banner sales.

Doing a spyware scan then means that you are scanning your computer to ensure that it is free of spyware. This is important because you are often not able to tell just out of nowhere when there is spyware on your computer.

If there is spyware on your computer, it may end up causing it to run slower than normal and even cause serious problems to your computer if not removed.

Getting Free Spyware Scan

You can pay for a program and have it installed on your computer so you can do a spyware scan whenever you want, but if you want to get a free spyware scan there are a few companies in particular that you can go through and a few websites that you are going to want to check out.

If you want to get a free spyware scan, you can check out Tenebril for one. Here you can do a free spyware scan on your computer and not worry about having to pay one red cent. This is great because then whenever you want to check your computer for spyware you can just head here and know that you can do it for free.

Another website that you can go through if you want to get a spyware scan for free is the Trend Micro HouseCall site. Their application is used for checking whether your computer has been infected by not only spyware but also viruses and other malware. It performs additional security checks as well in order to identify and fix vulnerabilities to prevent reinfection.

Checking regularly for spyware is a crucial part of any computer protection program so make sure that your computer is free from spyware at all times.

CNC computer control

CNC Control Software

The CNC Controller generally resides in the shop somewhere near the CNC machine it is controlling.  Control Computers don’t have to be the top of the line, every bell and whistle type of computer.  These are the workhorses.  Save your money for a good design computer.  You will save much more time having a fast computer for your designing.

A control computer doesn’t have to be that powerful for a few good reasons.  It doesn’t have the workload.  It takes G-Code and turns it into signals that it transmits to the Machine Controller.  Turning G-Code into signals is not that labor intensive for a computer.

I have used multiple types of control computers.  Everything from a 486 DOS running “$30 special” to a modern Dell with Windows XP.  I have yet to try one with Vista.  I will keep you posted.  Generally I like to find a good used computer for a couple hundred bucks, wipe the hard drive and only load the control software onto the machine.You know what you have that way.

There is another good reason you don’t want to spend a lot of money here.  This computer will usually be located in the shop.  Dirt will be located in your shop.  Using logic here, dirt will be located in your computer.If the computer happens to fail, you aren't out of a lot of money.

Here is my strategy in a nutshell for Control Computers.  The dirtier the job, the less money I spend on the computer.My CNC plasma cutting control computers cost about $40.They eat a lot of dirt and dust.  I blow them out frequently.y routing computers are in the $100 range.My CNC milling machine computers cost about $200.  Truth be told, they all last a very long time if you keep dirt, dust and plasma smoke out of them.

How is the CNC Control Computer used?
The CNC control computer has the CNC control software loaded on it.  You start up the control software then load up the CNC Program you created.  When you do this, the G-Code will be visible and ready to go.  Once you prep your CNC Machine and zero it out, you can begin your “cycle.”  A cycle is usually completing one CNC Program, which is a machining sequence.  You will also hear the term “Cycle Time” on the professional side of CNC a lot more.  The quicker you can get the cycle time, the more parts you can make.  And yes, that translates to more money.

Back in the good old days of DIY CNC, everything was transferred on a disk.  Now I have seen people include their Control Computers on their home computer network and transfer the files needed wirelessly.  At a very minimum, get a good jump drive and transfer things back and forth that way.

CNC Information Free Community Site:
If you would like to know more about CNC, head on over to http://www.cncinformation.com

You can join for Free and you get two free CNC ebooks. One is a GCode Quick Guide and the other is the CNC Info Site eBook. You also get access to the Free Video Series...Image to CNC art when you come into our free community.

Computer Privacy On The Internet

There are a few different ways you can talk about computer privacy if this is a concern for you. Actually, it should be a concern for everyone, but some people donít think about it, or they donít care about it. You should think about your personal things that you have stored on your computer, and also, privacy in regards to what you post online about yourself and your family. There are some major mistakes that people make without thinking how it might directly affect their personal privacy and the lives of those that they know and love.



When it comes to posting online, your computer privacy is in your own hands. Really think about how anyone anywhere would view what you are about to post. There are many parents who refuse to post pictures of their children in any public place online. That is a smart idea for many reasons. Just knowing there are pedophiles out there looking for such pictures is enough for some. Others realize that pictures, along with any identifying clues on the rest of the site, could lead someone right to a child. That might be one of the biggest computer privacy concerns that all parents have right now.



Assume that anything you put online is public knowledge. Not only do you have to think about this, you have to teach your children to think about it as well. Some have MySpace pages, and they assume that only their friends are looking. That is rarely the case. They should understand that computer privacy means that they are going to have to watch what they post. Any personal information should be off limits. Those who wish to harm children can use clues that might seem harmless to locate a child. Keep an eye on all online activity and make them change what you donít like.



Your computer is full of your personal files. These could be anything from drafts of business letters to personal correspondence with friends and family. You may have family tree information, and a ton of personal photos and videos. Obviously, these are things that you donít want to share with the world. Have password protection in the event that your computer is stolen, though some know ways around such things. In regards to computer privacy, avoid file sharing programs. You may be sharing more than music files. If you travel a lot with a laptop, save personal files to CDs or other forms of data storage and remove them from your computer at least once a week.

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Get Computer Help Online And Quickly

When you go to buy a new computer you want to know there is help out there for you when you need it. Though it will depend on who you buy from, many times you can get help from the manufacturer of the computer, or even from your Internet provider. What kind of computer help you need will determine who you can call. Most of the time your computer manufacturer will help you but you should know that if you get a virus you may be on your own. My brother found this out one day when he had to call Dell after a computer crash. 



When something goes wrong you need to get computer help as soon as you can. The last thing you want is to have a broken computer and nobody to fix it. This will mean you will have to spend a lot of money to go to a computer specialist to get your machine up and running again. This type of computer help can be very expensive. The moment you think something is wrong you should stop what youíre doing, and do troubleshooting on your computer. You should have a program on your computer that will instantly scan for things that may or may not be wrong. This information will help you when you call your computerís manufacturer. 



Most of the time computer help over the phone is free although this differs from company to company. Some companies will offer computer help for free no matter what, but others will only help you if you are still under warranty. This is information you may not know until you actually call for help, so it may be wise to keep your warranty information with you, or pay for an extended service deal if it is offered to you. If something is wrong with your Internet connection or with your web browser, your Internet service provider should be able to help you for free.



Remember that if you have a friend who knows how to fix computers you can save a lot of money that way, however, make sure they know what theyíre doing before you allow them to touch your computer. This type of computer help is no help at all if they do more damage. I have had many people try to help me with my computer only to mess it up more. That meant that the computer help I had to get after their bumbling ended up costing me even more. Make sure someone is qualified before you ask them for computer help.

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Getting Technical Help From Computer Forums

Most of us are not well versed in what we should do when something goes wrong with a computer. We use computers more than ever, and it could very well be something that becomes more and more important as we move on through time. Sadly, there are many small things that can go wrong, quite unexpectedly, that can mess everything up. Things are complicated to fix, even small problems, and we donít know what to do. Instead of panicking, we can always go to computer forums to get help from those that know what they are doing.



When you visit computer forums, there are some things you should know. You should have written down anything that had happened when you found a problem. That means if you had an error message, you should have written down the error number. That often helps someone give you a fix within seconds. Any other details can help, so have it written down so you can remember. However, before you post on computer forums about what happened, see if it has happened to someone else first.



That means you have to use the search function that you can find on many computer forums. This allows you to add a few keywords related to what your problem is, and then if anyone else has posted, it should come up in the search. Use different keywords before you give up on finding something. That would mean that you donít have to post about your problem at all, but follow the instructions that were left for someone else who came to the same computer forums with their computer problems. If the fix doesnít work, you can then post.



What you should remember about computer forums is that they are going to help you out, but they may not have a lot of patience because there are so many seeking information. If they tell you to do something, be sure to do it. What they ask can help them diagnose the problem, or are essential things you should do to fix your machine. Be sure to thank whomever helps you, as they often do it for free, or for very little cost. It saves you money in costly fixes in computer stores. Donít be afraid to pay a little for help if you canít find free help. A site with a good reputation will always give you what you pay for, and usually, much more.

To learn how instantt buzz spyware effects you, visit www.adwarespywarenuker.com where you'll find everything you need to know about the instantt buzz spyware and much more.

Learning Computer Basics

My first time with a computer was in eighth grade, but we really didnít do much with them. We made greeting cards which were printed out on printers that have fallen by the wayside a long time ago. When computers became more advanced, nothing that I learned in the way of computer basics applied. Iím not even sure the Windows operating system was in use then. I learned all over again when I went to college, and thankfully, things had gotten much easier to learn since the setup I used in middle school.



Learning the basics of computers is so much easier than it ever was, and it gets easier every few years. I know this because my daughter learned to use the basic functions of one by age three. Perhaps it was just exposure, because I use one for my work, but I think it is just because the computer basics you had to know long ago are no longer valid. The machine does all of that stuff on its own. You can click on things to open programs instead of memorizing and typing in commands. Personal computers are so much more user friendly than ever before.



Opening programs and learning to use the mouse are some of the first computer basics that people learn. They must know what each one does, and mostly the functions of save and open. Those are pretty common early uses and very easy to master. When opening the Internet, computer basics would be about connecting (if necessary), finding web sites, and how to use email. Other computer basics in regards to Internet might include how to keep your computer safe from viruses and spyware. Finding and buying the right programs for these things are essential, because many basic blunders are caught with these.



You can find programs that help with computer basics are well. Some are so good that people are working things on their own, quite well, within a matter of weeks. Once the basics of running a computer are learned, the rest can be a matter of trial and error. If you are learning on your own, making mistakes and learning as you go can be very effective. It can be scary to run a computer at first, but as long as you remember that most mistakes are easily fixed, and that, for the most part, computers rarely blow up if you push the wrong button, things should go well.

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Learn about the Process of Bronze Casting

Metal Casting

Bronze has been the most sought-after metal for cast metal sculptures in the bygone years. Bronze alloys have a desirable and unusual property to expand slightly prior to their setting. This helps a great deal in filling every corner of the mold. Their ductility and strength causes them to be molded into any form. However, bronze has a basic disadvantage of not being durable. Hence, there are hardly any traces of ancient bronze statues found. Bronze Metal Casting generally takes place by a process called lost-wax casting. Though, centrifugal and sand castings are also employed, around 90% of bronze casting takes place through lost-wax casting.

Lost-wax method: Lost-wax Metal Casting , in the industry, is better known as investment casting. It is costlier than die and sand Casting , but outshines them in terms of accuracy. It is easily possible to make complicated structures through ‘lost-wax casting’. The process can be described as follows:

Sculpting: First, the original artwork is created by the artist from clay, wax, or some other material. Mostly, clay (oil-based) and wax are used due to their property of retention of softness.

Mold making: Majority of molds consist of 2 pieces, along with a shim placed between 2 halves at the time of construction in order to put back the mold accurately. Its the keys that are usually stored in the shim area. The small sculpture molds generally consist of plaster. Fiberglass is also another item that can be used. To have the minute details preserved on the surface of original artwork, there exists a mold inside. It is made up of vinyl, silicone, or latex supported by plaster part of mold. Generally, the destruction of original artwork takes place during making. This is due to the solid nature of the originals. The other reason is the rigidity of the originals at the time of removal of plaster mold. That’s why; the original is cut off into thin, long pieces and separately molded. At times, a number of molds are required for recreating the original structure.

Wax: After the completion of latex-and-plaster mold, the pouring of molten wax takes place. Then, swishing is carried out till a uniform coating is obtained. The thickness of the coating is 1/8 inches. Usually its the inner surface of the mold that gets covered by it. In order to get the thickness that you desire, you will want to repeat this process over and over.

Wax removal: Artwork’s ‘hallow wax copy’ is detached from mold. This mold may be reused by the artist for making more copies of wax, but its use gets restricted due to frequent ‘wear & tear’. Around 25 copies can be made for tiny bronze artworks.

Chasing: The chasing of each copy starts. Rubbing of the marks is done by a hot metal tool. The marks showing ‘flashing’ or ‘parting line’ are rubbed out.

Spruing: The spruing of copy generates paths to flow (for molten bronze) and causes air to move out.

Slurry: The dipping of sprued copy into a liquid silica slurry, and then into sand-like ‘stucco’ takes place. You will really want to continue this process over and over again until you get a thickness of your coating of about 1/2 inch.

After these steps, the out-and-out processes like burnout, testing, pouring, releasing, metal chasing, and patinating are carried out.

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Wireless Internet Security Camera - Peace Of Mind Like No Other

If you are the type of person that does a lot of traveling as well as have to leave your family at home then you might have thought about purchasing a security system to insure your families safety and wellbeing. There are times when that is not enough to give you the peace of mind that you are seeking.

If you are the type of person who is in the habit of taking a walk around the house to do a final check prior to going to bed (good habit by the way) to make sure everything is safe but now you are unable to because you are away on business then you now have a solution. A wireless internet security camera gives you the ability to watch as well as listen to what is happening at and around your home even if you are always away from the house.

Both Visual and Audio Peace of Mind

It is pretty obvious that security systems have come quite a long way from what they used to be. The days when video used to be grainy are now gone, you now have the ability to both see as well as hear whatever is happening around your house. A wireless internet security camera will capture both video as well as audio inside of your home.

You may be of the mind that having audio incorporated into your security system is not going to make a large amount of difference, when in reality it will. Having the ability to hear the sounds of, for instance, a window shattering in some part of your home that may not be videotaped is an excellent benefit that you would not get if it were not for a wireless internet security camera.

Having the capabilities of a wireless internet security camera doesn't mean that all you get to do is watch. With this new technology you can actually control the camera. The majority of wireless internet security cameras give you the ability to pan, zoom as well as tilt into an area you want to see at your home even if you are many miles away provided that you have access to a wireless broadband network.

You have the capability of adjusting the tilt and pan speeds to whatever speed, either slow or fast, that you want. The gives you the ability to scan the entire area and watch your room at all different types of angles. With the zoom you have increased detail of what is happening, you can zoom in on windows as well as doors for instance to ensure that everything is locked up tightly.

You also have the option of attaching antennas to your wireless internet security camera to amplify the distance from the site and  the location that you are accessing the system. The wireless internet security camera is basically easy to operate and if you are using a computer equipped with Windows XP then it is automatically incorporated into your devices. What this boils down to is that all you need to do is to begin looking at footage from your security camera is to go to your 'My Network Places'.

To learn more go to CCTV Security Camera advice  and at Car Security Camera tips.

1000 rupees government laptop! - An Interview WIth Student Archit Trvedi In CNN-IBN.

After graduation in Delhi, getting ready for the competitive examinations Archit Trivedi his room hostels for 2000 rupees per month to rent these days and your friend's laptop on the project is preparing to. However, he soon hired his laptop in the half-money can buy.

The new plan from the most enthusiastic students Archit say, "cyber cafes have become very cheap, but if you have laptop if we sit at home at night, it is easy to work".

It started 11 anniversary of the Five Year Plan which was drafted while the information, communication and technology (ICT) through the education campaign for the 5000 crore have been allocated. The purpose was all science students to provide a laptop.

Sources by CNN - IBN According to the information now the plan is ready at all between the ministers and their opinion to achieve is being sent. Higher education students in mind it has a sample from a government aid has been made by the company.

The government scheme has been working under the company name was kept secret.

Sources CNN - IBN have also reported that the laptop's price will be only Rs 1000, the government if their partner to one million systems to make them contract.

256 MB of memory capacity in this laptop. The system will also facilitate the audio and video. Government and the development of this product at the same level of production would reduce costs.

The laptop comes with 'nano-PC', the news has begun to fly and it was not the technology more complex, perhaps in the villages of it heavy consumer can get.

Some brands and manufacturers of laptop

Acer
Apple
ASUS
Compaq
Dell
Gateway
Hewlett-
Lenovo
Panasonic
Sony
Toshiba
Abbcore Technologies
Acorn Computers
AVADirect
Averatec
BenQ
Everex
Fujitsu Siemens
Gericom
Gigabyte Technology
HCL
HTC - HTC Shift
Hypersonic
Hyundai
Jetta (electronics company) - Jetbook
LG - Xnote
LinuxCertified - Linux laptop
MDG Computers
Medion
Micro-Star International (MSI)
NEC - VERSA, LaVie
Neo - Empiriva, Endura
Noahpad
OQO
Orca
Packard Bell - EasyNote
PC Club
Philips - X200
Pioneer Computers
Positivo Informática
Prestigio
Sager Notebook Computers
Samsung - Sens
Seanix - Seanix
Sharp - Mebius
Síragon, C.A.
System76
VIA - NanoBook, pc-1 Initiative
Zenith
Zepto
Wipro Technolgies

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