what are the advantages of CNC machine over NC?
917833
CNC is Computer Numerical Control and NC is Numerical Control. CNC is very cost effective\n\nCNC is the most prevalent in industry, today. Typically, the CAD data base is downloaded to a machine readable file. The Programmer/Machinist programs the machine tool to following the exact configuration of the part. The Programmer must select the proper cutting tools, speeds and feeds of the cutters and cutting lubricants to be used.\n\nCNC machining provides virtually defect parts and produces finished parts in a fraction of the time as compared to other processes.\n\nHowever, the initial set time and costs are high, but, the high volume production yields the lowest cost possible.\n\nHope this helps.\n\nMav
1158324
the difference is in price. itried both and didnt see any difference. go with gilette fusion. it is great.
543995
If you are doing it strictly for hobby, such as myself  i would suggest learning visualbasic.net.\n\nAs you become more curious you may delve into things such as c or assembler, but dont start with those.
1155196
Some of the advantages are that a CNC (Computer Numerical Code [a computer controlled variant]) Mill can give incredibly accurate machined surfaces, edges and bolt patterns, and can reproduce that exact piece over and over, with barely a noticeable difference in one piece over another. Most differences come from irregularities in the stock or casting you want to machine. Mills can cut gears, ream key-ways or bore holes, make manifolds ... it goes on and on. There are different kinds of mills; there are the manually operated ones that take much care in setup and production of each piece, to single head mills with a battery of tools to do multiple operations, but only in one axis, to multi head, multi angle mills, which are like a legion on gnomes attacking a piece of metal, doing multiple operations at once, from shaping (all Mills can do this) one surface while another head is drilling and tapping holes, and yet a third is boring on another axis. The main disadvateges are that most mills in my experience are not very good at machineing round or spherical stock to a round or sphereical finished product, you use lathes for that. Another is the size, even a small mill can require about 3 meters square for setup and auxilliary equipment. Another drawback is the cost. These things aren't cheap and they use lots of electricity.
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New Computer Type Universal Testing Machine Launched. \n \n \n \n \n\nThe advanced JTM-S200 Computer Type Universal Testing Mahcine provides the ultimate in high accuracy and precision\n\n \n(PRWEB) December 30, 2004 -- J.T.M. Technology Co., Ltd. is pleased to announce the launch of a powerful new Computer Type Universal Testing Machine aimed at mid range force testing applications. The JTM-S200 Computer Type Universal Testing Machine is the latest addition to the acclaimed Plus range that offers all the benefits of simple operation. \n\nThe advanced JTM-S200 Computer Type Universal Testing Mahcine provides the ultimate in high accuracy and precision, fast speed and reliability with the corresponding computer control system. Capable of tensile, compression, flexure, peel, shear, and friction testing?Ketc. All operations are made via the simple and ergonomic operation panel. The digital LED display shows either force or stress or elongation or strain, the selection being made by simple key operation. JTM's S200 series universal testers are the best choice for various material testing. \n\nOne key feature of this powerful new JTM-S200 is the ability to achieve test speeds as low as 1 micron/minute with exceptional smooth control. Engineering tests have shown overwhelmingly that it would take a staggering 1 hour 30 minutes for the JTM-S200 to move the distance of a single sheet of photocopier paper just 90 microns thick. This control precision is essential for measuring the tiny movements that occur when tough materials such as metals, ceramics and webbing textiles, are tested under high forces. The twin column frame also provides superior stability needed for all manufacturing, quality control and research laboratory environments.\n\nJTM (http://www.handtoolsmakers.com/Testing-Machine/jtm)is a Taiwan based professional manufacturer and export of material testing machines, and owned by qualified engineers, JTM has decades of experience under its belt. The company was established with the aim to cater to the needs of many industries providing them its vast range of precise technical instruments for quality control in production.\n\nMain Products\nJTM undertakes designing and manufacturing of a wide range of physical material testing equipment, which is accepted in international market. Each machine is developed and manufactured in accordance with the relative national standard such as ISO, ASTM, DIN, EN, BS, JIS, ANSI, UL...etc. JTM has gained expertise in its field of production. Our ability to make high-tech instruments in quick time has given us the upper edge over our competitors. Our premier products include the following:\n- Tensile Testing Machine\n- Concrete Compression Testing Machine\n- Universal Testing Machine\n- Office Chair Testing Machine\n- Paper and Package Testing Machine\n- Plastics Testing Machine\n- Rubber Testing Machine
891466
i am working as SE in networking domain.Feature of the n/w field is very good.now a days Internet is penetrating more as compaired to other domains.i think it's better to complete your MCA.In the mean while you can opt for certification exams like CCNA,CCNP,CCIE etc.if u want to enter n/w industry it is better to have CCNA at least.CCNP prefered and CCIE promices GOOD JOB + HIGH SALARY.
314531
Branded always is better - coz they're better in performance and support is assured. But if u can manage with lesser performance and your own maintenance - just go for Assembled
206638
Advantages of LAN:\n\n1. Easier to maintain than a WAN\n\n2. More secure\n\n3. Better connectivity\n\n4. Often easier to configure than a WAN\n\nDisadvantages of LAN:\n\n1. You often only have 1(one) access point.\n\n2. It's limited on who can use it\n\n3. When one computer goes down they all go down(depending on configuration)\n\n\nAdvantages of WAN:\n\n1. Broader reception area.\n\n2. More recievable connections available\n\n3. Portablility (if you use a laptop)\n\nDisadvantages of WAN\n\n1. Not as much security as a LAN\n\n2. If the Hub goes down your network goes down\n\n3. Less reception with a WAN than a LAN\n\n\nThese are just some things I could think of i'm sure others can/will offer more info that is probably better than mine.
372761
NIIT is gud when compared to APTEC
602889
Advantage is mainly ease of use as you can avail these facilities on net or phone or through ATMs however disadvantage is you loose human touch and worse is if something goes wrong it is very difficult to get it corrected.
621703
CNC Glass Cutting Machine.\n\nYour question is a little broad, that is a full time job.
1153915
Macs are better for art, media and creative projects.  They also aren't subject to the many viruses that PCs have to deal with.\n\nPCs are less expensive and have a wider variety of software to choose from.
280562
The definition of Mechanical Advantage is "The ratio of the output force produced by a machine to the applied input force."\n\nWhen you add more rope segments, you have to do less work to move an object held by a pulley, because each segment of rope is doing a piece of the work.\n\nSay you have a 100lb weight, held by 4 sections of pulley.  Each section is holding 25 lbs (including the section you're holding onto), so you're only doing 25 lbs of work.  The MA is 4.\n\nSo the answer is, "the number of rope segments".\n\nNote this is the ideal mechanical advantage.  The true MA is reduced by things like friction in the ropes.
354313
Ok first of all know about the term :Machanical advantage.\nMechanical advantage of a pulley is equal to the number of supporting ropes.\n   As per your description yours is a single fixed pulley.\n\n   A fixed pulley is a pulley in which the wheel does not move. Fixed pulleys change the direction of the effort force. It does not increase the size of the effort force. The effort force is equal to the resistance force in a fixed pulley; therefore, the mechanical advantage (MA) of a fixed pulley is equal to 1.\n\n       But the actual defination of mechanical advantage is as follows:it is th ratio of  \nF(out) = force exerted on the load by the machine and \nF(in) = force you exert on the machine\n\nHere the load is 950N and the friction is 0.Thus by the above formulae:\n\nMA=F(out)/F(in)\nor\nMA=Load/Effort\n1=load/effort\nBut load=950N\n1=950/effort\neffort * 1=950N       <By cross mul>\neffort=950N           <Answer>
749469
Drop forged is stronger... casting could contain impurties which may cause it to crack. Stationary parts are ok as cast (e.g. engine blocks) but moving parts and impact tools are better when made from forged steel. You probably noticed that drop forged tools tend to cost more -- that's why.\n\nIf you buy your tools from Snap-On or Craftsman (Sears) you'll get lifetime replacement.
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It's way too early to ask this, so use your fictional imagination.  The application is likely to be extremely dense memory.  More benefit would come from using it for computations for which it is suited.  To build a von Neuman architecture machine, you would need to do a tremendous amount of work just to be as good as today's traditional technology.  I don't think it's particularly suited to neural net computation, and that technology is already short of applications.  NMRI is extremely unlikely, since it enormously increases the cost without any obvious benefit.  The technology is far too immature to answer the other questions.
1027760
I am a CNC machinist.  CNC lathes can be used to produce anything a manual lathe can.  This is also true of CNC lathes.\n     CNC machines are much more economical to use than their manual counterparts (at least for high-volume production) due to their repeatability, their lower per-piece cost, their ability to be left unattended, and their ease of control.  Once programmed and debugged, a CNC lathe or mill can theoretically produce millions of identical pieces, provided the cutting tools (Titanium-carbide inserts on tool steel cutting tools) are maintained.\n     By the way, the lathe is the only tool that can be used to reproduce itself.