A few weeks ago, a French sculptor contacted the new stone, the studio of the Republic of China. Milling Company in North Hollywood, California The type of challenge the company is looking. He had a 19th- The face of the century limestone lion, he wants to copy for a series of fountains. But carving each face by hand is a tedious chore, and he has no time and resources. Instead, he shipped the original work to Studio Roc, where the technicians mapped it into three dimensions with a laser scanner. Then they put a piece of limestone in the computer. Control the milling machine and use the scan data to carve out the repeated lion face when touching the button. The result requires some manual detail, but this is exactly what the sculptor wants. After about six hours, the machine has done a busy job, and it will take him longer to use a hammer and a chisel. \"After a hard week, what energy does he have left? Kenneth Kai Chang, chief executive of the Republic of China studio, said. \"Now he can really go towards the back end and it looks a lot faster than before. \"Advertising limestone lions is an example of how technology can change sculpture, architectural elements, and many other ways it used to be --hand- Carved items can be created or cloned. Computer scanner Auxiliary design software and automatic milling equipment are helping the sculptor, and in some cases the sculptor will be replaced to produce detailed works from marble slabs and reverse machining Complex forms of engineering. The result of advertising is a seemingly contradictory concept of mass customization, in which infinite copies of infinite variations are possible as long as there are stones to be mined. But take advantage of these granite Grinding Xerox machines capable of copying any sculpture may also blur the line between real and unreal. Is this sculpture art, or is it just a computer? aided copy? For example, in the third phase, researchers from Stanford University and the University of Washington used the data generated by a one-month scan of David from Michele Angelo Luo, the gentle giant studio. An effect company in Burbank, California It turned out to be a small copy of 17- Statue of high foot Although David\'s rather faithful replica was made using a plaster model, 15- Inch copy is the most perfect masterpiece model ever. With the permission of Italian officials, it is likely to form a nearIdentical twins( A Stanford website says researchers do eventually sell copies of this model, although computer science professor Mark Levo, who is in charge of scanning projects, says there is no plan to do so. ) The goal of Studio Roc is not to subvert the art world, but to attract architects and contractors who want to customize The fixing device for engraving is faster than that made by craftsmen, with lower price and higher accuracy. Mr. Mr. Chang, a former architect who described his company as \"at the forefront of the stone industry,\" said, \"We just felt that it was time for someone to actually put into it, the combination of three, four and five technologies has made this construction field the latest. \"William habilinsky, an architect in Los Angeles, designed the residence for the governor. Arnold Schwarzenegger and Warren Betty in California predict that computer milling will become an integral part of high-end home buildings, especially molds. \"You basically ask the robot to do what you usually have to pay to master stonemason, about $70 to $180 an hour,\" he said . \". Mr. Hablinski said he will still hire an artist to create a unique work such as a gorgeous mantel. \"We want to keep this ship alive,\" he said . \" \"We don\'t want the stone carving to disappear. \"If the craft does fade, it will be because of the equipment at Roc studios, including a huge Italian -- Manufacturing Omag Mill5- Shaft milling machine. With a scanner and 30 interchanging diamonds Mill5 can record almost any object in a matter of minutes and engrave replicas on any stone within a few hours. The scanner and grinding head are placed in a single stator suspended on the Electric gantry, and tools can be deployed at any angle, even aiming upwards, trimming the details of the cornice, or digging out the belly of a stone-like ghost. Like the face of the Lion, each finished product eventually requires some manual work, but the system can take up to 95% of the work, Sir. Chang said. Computer field- In 1950s, auxiliary processing was first developed in the aviation and automotive industries. It spawned modern technology called rapid prototyping, in which engineers use computers. Auxiliary design or CAD software to create a physical model Ups of the product, from toothbrush to action map, in full- The formal production began. Please click on the box to verify that you are not a robot. The email address is invalid. Please re-enter. You must select the newsletter you want to subscribe. View all New York Times newsletters. A few years ago, the technology began to slowly enter the grinding industry. \"We will not start this business except for a lot of people who are ahead of us,\" Mr. Chang said. \"We are the heirs to this tradition. \"Control hardware is a simple language called G- The operator of Mill5 uses the code generated by several CAD packages. Programmers can model from scratch on the screen- Or use the CAD file provided by the customer-- And start Mill5. Once started, the engraving process requires little or no manpower input at all; Usually start the job at the shutdown time, so that the machine can perform noisy tasks at night. While Roc studios are targeting the construction industry, the Johnson studio Sculpture Institute in Trenton caters to New York -- Regional artist who wants to start a new work or expand an existing work by sitting on a PC instead of standing on a ladder. They can bring a 12- Jon Leesh, director of the digital studio division at the Institute, said: \"inch works, we will have 12 feet of them in less than a week . \". \"Then they will come in and do the final treatment of the surface. \"Over the past three years, digital studios have worked on a project every week, working on stone and other materials, including foam. \"I don\'t get millions of dollars. Commission in dollars. Lash said. Some people say I have $5,000, can we do it? \"A few years ago, the answer was no, because the hardware and software needed was too expensive for most people in the art world. When the technology came along, its industrial programming was not yet fully prepared for the subtle textures and defects created by hand. \"It\'s not a smooth fender on Chevrolet,\" said Mr. Lash said. Similarly, artists are not fully prepared for the technology. A New York sculptor who embraced it, Julian laverdir, said that the reaction of some artists echoed the contempt of many 19 th century. Century painter is the earliest painter. This is a new technology, he said. \"It\'s not a threat anyway. Casting bronze is a new technology. \'\'Last year Mr. LaVerdiere used a portable laser scanner to digitize one of the 22 mar ble eagles that decorated the entrance to the old Penn Station before the building was removed in 1964. Then, Johnson\'s studio grinded an exact replica with the styreness, LaVerdiere of polyurethane and artificial coating It looks like a weathered stone. It is on display at the Lehmann moping Gallery, swinging on the chain as if diving in flight. A larger civil protection effort is under way. Two years ago, Sir. Leesh visited Milan Cathedral in Italy, where officials have begun to replace hundreds of deteriorating lives. A replica-sized statue. The US government commissioned a scan of icons and monuments from several countries, including the Statue of Liberty, the Capitol and Mount Rushmore, so if the original was destroyed by terrorism, the blueprint would be available for reconstruction. Obviously, in the hands of the wrong people, machines like Mill5 could be the first Counterfeit factory ( Although the equipment is expensive: depending on the choice, a Mill5 may cost $100,000 to $600,000. Mr. Leesh said he would not copy the sculpture without proper permission. Chang agreed. \"I wouldn\'t accept it if someone brought their Henry Moore to me and said, hey, make me a duplicate. \"Laser scanning is not required for sculpture piracy. Mr. Lash noted that most of the foundry in Asia has produced countless replicas. - Some are made according to the photo, some are made according to the original mold. \"Look at all the Remington horses in circulation,\" he said . \". But Mr. LaVerdiere noted that a well was copied The well-known work used to be an honest academic effort, primarily pursued by artists who hone their skills. \"Copying classical sculpture has always been a tradition,\" he said . \". Now we\'re using 21- Century technology. Really cool. It\'s too bad. it took so much money. \"We are constantly improving the quality of text archives. Please send feedback, error reports, and suggestions to archid_feedback @ nytimes. com. A version of this article appears on page G00001 of the National edition in July 22, 2004, with the title: When technology imitates art.