Animatronics

For other uses, see Animatronics (disambiguation).
Lucky the Dinosaur, a free roaming audio animatronics at Walt Disney World in 2005 was the first one to walk on land.
Tyrannosaurus at London's Natural History Museum

Animatronics refers to the use of robotic devices to emulate a human or an animal, or bring lifelike characteristics to an otherwise inanimate object.[1][2] Animatronic creations include animals (including dinosaurs), plants and even mythical creatures. A robot designed to be a convincing imitation of a human is more specifically labeled as an android.[3][4][5] Modern animatronics have found widespread applications in movie special effects and theme parks and have, since their inception, been primarily used as a spectacle of amusement.

Animatronics is a multi-disciplinary field which integrates anatomy, robots, mechatronics, and puppetry resulting in lifelike animation.[6][7] Animatronic figures are often powered by pneumatics, hydraulics, or by electrical means, and can be implemented using both computer control and human control, including teleoperation. Motion actuators are often used to imitate muscle movements and create realistic motions in limbs. Figures are covered with body shells and flexible skins made of hard and soft plastic materials, and finished with details like colors, hair and feathers and other components to make the figure more realistic.

Etymology

Animatronics is portmanteau of animate and electronics [8]

The term audio-animatronics was coined by Walt Disney when he started developing animatronics for entertainment and film. Audio-Animatronics does not differentiate between animatronics and androids.

Autonomatronics, was also defined by Walt Disney Imagineers, to describe a more advanced audio-animatronic technology featuring cameras and complex sensors to process information around the character's environment and respond to that stimulus.[9]

Timeline

All three of Vaucanson's Automata: The Flute Player, The Tambourine Player, and Digesting Duck
The Enchanted Tiki Room
Tyrannosaurus animatronic, the largest animatronic, used for Jurassic Park

History

Origins

Al-Jazari's toy boat, musical automata

The 3rd-century BC text of the Liezi describes an encounter between King Mu of Zhou and an 'artificer' known as Yan Shi, who presented the king with a life-size automaton. The 'figure' was described as able to walk, pose and sing, and when dismantled was observed to consist of anatomically accurate organs.[19]

The 5th-century BC Mohist philosopher Mozi and his contemporary Lu Ban are attributed with the invention of artificial wooden birds (ma yuan) that could successfully fly in the Han Fei Zi[20] and in 1066, the Chinese inventor Su Song built a water clock in the form of a tower which featured mechanical figurines which chimed the hours.

In 1515, Leonardo da Vinci designed and built the Automata Lion, one of the earliest described animatrons. The mechanical lion was presented by Giuliano de’ Medici of Florence to Francois I, King of France as a symbol of an alliance between France and Florence.[21] The Automata Lion was rebuilt in 2009 according to contemporary descriptions and da Vinci's own drawings of the mechanism.[21] Prior to this, da Vinci had designed and exhibited a mechanical knight at a celebration hosted by Ludovico Sforza at the court of Milan in 1495.[22] The 'robot' was capable of standing, sitting, opening its visor and moving its arms. The drawings were rediscovered in the 1950s and a functional replica was later built.[22]

Early implementations

Clocks

Greek washstand automaton of the 3rd century BC

While functional, early clocks were also designed as novelties and spectacles which integrated features of early animatronics.

Approximately 1220–1230, Villard de Honnecourt wrote The Portfolio of Villard de Honnecourt which depicts an early escapement mechanism in a drawing titled How to make an angel keep pointing his finger toward the Sun and an automaton of a bird, with jointed wings which led to their design implementation in clocks. Because of their size and complexity, the majority of these clocks were built as public spectacles in the town centre. One of the earliest of these large clocks was the Strasbourg Clock, built in the fourteenth century which takes up the entire side of a cathedral wall. It contained an astronomical calendar, automata depicting animals, saints and the life of Christ. The clock still functions to this day, but has undergone several restorations since its initial construction. The Prague astronomical clock was built in 1410, animated figures were added from the 17th century onwards.[23]

Face of the Astronomical Clock, in Old Town Square, Prague

The first description of a modern cuckoo clock was by the Augsburg nobleman Philipp Hainhofer in 1629.[24] The clock belonged to Prince Elector August von Sachsen. By 1650, the workings of mechanical cuckoos were understood and were widely disseminated in Athanasius Kircher's handbook on music, Musurgia Universalis. In what is the first documented description of how a mechanical cuckoo works, a mechanical organ with several automated figures is described.[25]

In 18th-century Germany, clock makers began making cuckoo clocks for sale.[23] Clock shops selling cuckoo clocks became commonplace in the Black Forest region by the middle of the 18th century.[26]

Attractions

A banquet in Camilla of Aragon's honor in Italy, 1475, featured a lifelike automated camel.[27] The spectacle was a part of a larger parade which continued over days.

In 1454, Duke Philip, created an entertainment show named The extravagant Feast of the Pheasant, which was intended to influence the Duke's peers to participate in a crusade against the Ottomans, but ended up being a grand display of automata, giants, and dwarves.[28]

Giovanni Fontana, a Paduan engineer in 1420, developed Bellicorum instrumentorum liber which includes a puppet of a camelid driven by a clothed primate twice the height of a human being and an automaton of Mary Magdalene.[29]

Implementations

Modern attractions

See also: List of Disney attractions using Audio-Animatronics and Category:Animatronic attractions

The earliest modern animatronics can actually be found in old robots. While some of these robots were in fact animatronics, at the time they were thought of simply as robots because the term animatronics had yet to become popularized.

Sparko the Robot Dog from 1940s

The first animatronics characters to be displayed to the public were a dog and a horse. Each were the attraction at two separate spectacles during the 1939 New York World's Fair. Sparko, The Robot Dog, pet of Elektro the Robot, performs in front of the public at the 1939 New York World's Fair but Sparko is not like normal robots. Sparko represents a living animal, thus becoming the very first modern day animatronics character,[14] along with an unnamed horse which was reported to gallop realistically. The animatronics galloping horse was also on display at the 1939 World's Fair, in a different exhibit than Sparko's.[15]

Walt Disney is often credited for popularizing animatronics for entertainment after he bought an animatronic bird while he was vacationing, although it is disputed whether it was in New Orleans[30] or Europe.[31] Disney's vision for audio-animatronics was primarily focused on patriotic displays rather than amusements.[32]

In 1951, two years after Walt Disney discovered animatronics, he commissioned machinist Roger Broggie and sculptor Wathel Rogers to lead a team tasked with creating a 9" tall figure that could move and talk simulating dance routines performed by actor Buddy Ebsen. The project was titled 'Project Little Man' but was never finished. A year later, Walt Disney Imagineering was created.[33]

After "Project Little Man", the Imagineering team at Disney's first project was a "Chinese Head" which was on display in the lobby of their office. Customers could ask the head questions and it would reply with words of wisdom. The eyes blinked and its mouth opened and closed.[33]

The Walt Disney Production company started using animatronics in 1955 for Disneyland's ride, the Jungle Cruise,[34] and later for its attraction Walt Disney's Enchanted Tiki Room which featured animatronics Enchanted Tiki Birds.

The first fully completed human audio-animatronic figure was Abraham Lincoln, created by Walt Disney in 1964 for the 1964 World's Fair in the New York. In 1965, Disney upgraded the figure and coined it as the Lincoln Mark II, which appeared at the Opera House at Disneyland Resort in California.[32] For three months, the original Lincoln performed in New York, while the Lincoln Mark II played 5 performances per hour at Disneyland. Body language and facial motions were matched to perfection with the recorded speech. Actor Royal Dano voiced the animatronics version of Abraham Lincoln.[32]

Lucky the Dinosaur is an approximately 8-foot-tall (2.4 m) green Segnosaurus which pulls a flower-covered cart and is led by "Chandler the Dinosaur Handler". Lucky is notable in that he was the first free-roving audio-animatronic figure ever created by Disney's Imagineers.[35] The flower cart he pulls conceals the computer and power source.[36]

The Muppet Mobile Lab is a free-roving, audio-animatronic entertainment attraction designed by Walt Disney Imagineering. Two Muppet characters, Dr. Bunsen Honeydew and his assistant, Beaker, pilot the vehicle through the park, interacting with guests and deploying special effects such as foggers, flashing lights, moving signs, confetti cannons and spray jets. It is currently deployed at Hong Kong Disneyland in Hong Kong.

A Laffing Sal is one of several automated characters that were used to attract carnival and amusement park patrons to funhouses and dark rides throughout the United States.[37] Its movements were accompanied by a raucous laugh that sometimes frightened small children and annoyed adults.[38] The Rock-afire Explosion in an animatronic robot band that played in Showbiz Pizza Place from 1980 to 1990.

Film and television

The film industry has been a driving force revolutionizing the technology used to develop animatronics.[39]

Animatronics are used in situations where a creature does not exist, the action is too risky or costly to use real actors or animals, or the action could never be obtained with a living person or animal. Its main advantage over CGI and stop motion is that the simulated creature has a physical presence moving in front of the camera in real time. The technology behind animatronics has become more advance and sophisticated over the years, making the puppets even more realistic and lifelike.

Animatronics were first introduced by Disney in the 1964 film Mary Poppins which featured an animatronics bird. Since then, animatronics have been used extensively in such movies as Jaws, and E.T. the Extra-Terrestrial, which relied heavily on animatronics.[23]

Directors such as Steven Spielberg and Jim Henson have been pioneers in using animatronics in the film industry.

The 1993 film Jurassic Park used a combination of computer-generated imagery in conjunction with life-sized animatronic dinosaurs built by Stan Winston and his team. Winston's animatronic "T. rex" stood almost 20 feet (6.1 m),[40] 40 feet (12 m) in length[41] and even the largest animatronics weighing 9,000 pounds (4,100 kg) were able to perfectly recreate the appearance and natural movement on screen of a full-sized tyrannosaurus rex.[42]

Jack Horner called it "the closest I've ever been to a live dinosaur".[41] Critics referred to Spielberg's dinosaurs as breathtakingly — and terrifyingly — realistic.[43][44]

The 1999 BBC miniseries Walking with Dinosaurs was produced using a combination of about 80% CGI and 20% animatronic models.[45] The quality of computer imagery of the day were good, but animatronics were still better at distance shots, as well as closeups of the dinosaurs.[45] Animatronics for the series were designed by British animatronics firm Crawley Creatures.[45] The show was followed up in 2007 with a live adaptation of the series, Walking with Dinosaurs: The Arena Spectacular.

Geoff Peterson is an animatronic human skeleton that serves as the sidekick on the late-night talk show The Late Late Show with Craig Ferguson. Often referred to as a "robot skeleton", Peterson is a radio-controlled animatronic robot puppet designed and built by Grant Imahara of MythBusters.[46]

Advertising

The British advertisement campaign for Cadbury Schweppes titled Gorilla featured an actor inside a gorilla suit with an animatronically animated face.

The Slowskys was an advertising campaign for Comcast Cable's Xfinity broadband Internet service. The ad features two animatronic turtles, and it won the gold Effie Award in 2007.[47]

Toys

Some examples of animatronic toys include Teddy Ruxpin, Big Mouth Billy Bass, Kota the triceratops, Pleo, WowWee Alive Chimpanzee. and Furby

Design

An animatronic

An animatronics character is built around an internal supporting frame, usually made of steel. Attached to these "bones" are the "muscles" which can be manufactured using elastic netting composed of styrene beads.[48] The frame provides the support for the electronics and mechanical components, as well as providing the shape for the outer skin.[49]

The "skin" of the figure is most often made of foam rubber, silicone or urethane poured into moulds and allowed to cure. To provide further strength a piece of fabric is cut to size and embedded in the foam rubber after it is poured into the mould. Once the mould has fully cured, each piece is separated and attached to the exterior of the figure providing the appearance and texture similar to that of "skin".[50]

Structure

An animatronics character is typically designed to be as realistic as possible and thus, is built similarly to how it would be in real life. The framework of the figure is like the "skeleton". Joints, motors, and actuators act as the "muscles". Connecting all the electrical components together are wires, such as the "nervous system" of a real animal or person.[51]

Frame or skeleton

Steel, aluminum, plastic, and wood are all commonly used in building animatronics but each has its best purpose. The relative strength as well as the weight of the material itself should be considered when determining the most appropriate material to use. The cost of the material may also be a concern.[51]

Exterior or skin

Several materials are commonly used in the fabrication of an animatronics figure's exterior. Dependent on the particular circumstances, the best material will be used to produce the most lifelike form.

For example, "eyes" and "teeth" are commonly made completely out of acrylic.[52]

Latex

White latex is commonly used as a general material because it has a high level of elasticity. It is also pre-vulcanized, making it easy and fast to apply.[53] Latex is produced in several grades. Grade 74 is a popular form of latex that dries rapidly and can be applied very thick, making it ideal for developing molds.[54]

Foam latex is a lightweight, soft form of latex which is used in masks and facial prosthetics to change a person's outward appearance, and in animatronics to create a realistic "skin".[54] The Wizard of Oz was one of the first films to make extensive use of foam latex prosthetics in the 1930s.[55]

Silicone

Disney has a research team devoted to improving and developing better methods of creating more lifelike animatronics exteriors with silicone.[56]

RTV silicone (room temperature vulcanization silicone) is used primarily as a molding material as it is very easy to use but is relatively expensive. Few other materials stick to it, making molds easy to separate.[57][58]

Bubbles are removed from silicone by pouring the liquid material in a thin stream or processing in a vacuum chamber prior to use. Fumed silica is used as a bulking agent for thicker coatings of the material.[59]

Polyurethane

Polyurethane rubber is a more cost effective material to use in place of silicone. Polyurethane comes in various levels of hardness which are measured on the Shore scale. Rigid polyurethane foam is used in prototyping because it can be milled and shaped in high density. Flexible polyurethane foam is often used in the actual building of the final animatronic figure because it is flexible and bonds well with latex.[54]

Plaster

As a commonplace construction and home decorating material, plaster is widely available. Its rigidity limits its use in moulds, and plaster moulds are unsuitable when undercuts are present. This may make plaster far more difficult to use than softer materials like latex or silicone.[58]

Movement

A postulated interior of the Duck of Vaucanson (1738-1739)

Pneumatic actuators can be used for small animatronics but are not powerful enough for large designs and must be supplemented with hydraulics. To create more realistic movement in large figures, an analog system is generally used to give the figures a full range of fluid motion rather than simple two position movements.[60]

Emotion modeling

Mimicking the often subtle displays of humans and other living creatures, and the associated movement is a challenging task when developing animatronics. One of the most common emotional models is the Facial Action Coding System (FACS) developed by Ekman and Friesen.[61] FACS defines that through facial expression, humans can recognize 6 basic emotions: anger, disgust, fear, joy, sadness, and surprise. Another theory is that of Ortony, Clore and Collins, or the OCC model[62] which defines 22 different emotional categories.[63]

Training and education

Animatronics has been developed as a career which combines areas of mechanical engineering, casting/sculpting, control technologies, electrical/electronic, radio control and airbrushing.

Colleges and universities do not offer degree programs in animatronics. Individuals interested in animatronics typically earn a degree in robotics which closely relate to the specializations needed in animatronics engineering.[64]

Students achieving a bachelor's degree in robotics commonly complete courses in:

See also

References

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  2. ↑ "Animatronics Introduction". Digication, Inc. Retrieved 10 October 2014.
  3. ↑ "Definition: an·droid". Merriam-Webster. Merriam-Webster Inc. a robot that looks like a person
  4. ↑ Ishiguro, Hiroshi. [Robotics/AndroidScience5.pdf "Android Science — Toward a new cross-interdisciplinary framework"] (PDF). Japan: Osaka University. Department of Adaptive Machine Systems. Retrieved 13 September 2014. The main difference between robot-like robots and androids is appearance. The appearance of an android is realized by making a copy of an existing person.
  5. ↑ "Why aren’t the dinosaurs called "robotic" is there a difference between that and "animatronic"?". Premier Exhibitions, Inc. 2014. Retrieved 13 September 2014. Animatronics is technology used to create machines that represent living things .. Robots designed to imitate humans are called androids.
  6. ↑ Shooter, Ph.D., P.E., Steven B. "Animatronics". Mechanical Engineering Dept. Bucknell University. Retrieved 10 October 2014.
  7. ↑ "Define: animatronics". Oxford Dictionary. Oxford University Press. The technique of making and operating lifelike robots
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  10. ↑ Ackerman, James S. (1997). "Villard de Honnecourt's Drawings of Reims Cathedral: A Study in Architectural Representation". Artibus et Historiae 18 (35): 41. doi:10.2307/1483536. JSTOR 1483536.
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  15. 1 2 Corporation, Bonnier (Jan 1939). "A Mechanical Horse Gallops Realistically". Popular Science 134 (1): 117. Retrieved 10 August 2014.
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  40. ↑ Stack, Tim; Staskiewicz, Keith (2013-04-04). "Welcome to ‘Jurassic Park': An oral history". Entertainment Weekly. Retrieved 2014-09-29.
  41. 1 2 Corliss, Richard (26 April 1993). "Behind the Magic of Jurassic Park". TIME. Retrieved 26 January 2007.
  42. ↑ Magid, Ron (June 1993). "Effects Team Brings Dinosaurs Back from Extinction". American Cinematographer 74 (6): 46–52. Retrieved 21 October 2014. But this system achieved its most remarkable results in Jurassic Park's star attraction, a 40-foot-long, 9000-pound animatronic machine that perfectly recreated the appearance and fluid motion of a full-sized Tyrannosaurus rex.
  43. ↑ Cohen, Matt (2012-04-05). "Why Jurassic Park was meant to be seen in 3D". THE WEEK Publications, Inc. Retrieved 21 October 2014. Spielberg's dinosaurs were breathtakingly — and terrifyingly — realistic.
  44. ↑ Neale, Beren. "How Jurassic Park made cinematic history". 3D World (182). Retrieved 21 October 2014. Seeing Jurassic Park made me realise that my destiny was in digital
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  54. 1 2 3 Buffington, Jack. "Skin and Molds". BuffingtonFX.
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  56. ↑ Chan, Normal (15 August 2012). "Synthetic Skin For Animatronic Robots Gets More Realistic". Whalerock Industries. Retrieved 9 August 2014.
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  58. 1 2 James, Thurston (1997). The prop builder's molding & casting handbook (6. pr. ed.). Cincinnati: Betterway Books. p. 55. ISBN 1-55870-128-1.
  59. ↑ Whelan, Tony (1994). Polymer Technology Dictionary. Springer Netherlands. pp. 144–168. doi:10.1007/978-94-011-1292-5_8.
  60. ↑ Kornbluh, Roy D; Pelrine, Ron; Qibing, Pei; Heydt, Richard; Stanford, Scott; Oh, Seajin; Eckerle, Joseph (July 9, 2002). "Electroelastomers: applications of dielectric elastomer transducers for actuation, generation, and smart structures". Smart Structures and Material. Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies. Applications of Smart Structures Technologies (254): 254. Bibcode:2002SPIE.4698..254K. doi:10.1117/12.475072.
  61. ↑ Ekman, Paul; Friesen, Wallace V. (1975). Unmasking the face : a guide to recognizing emotions from facial clues (PDF) (2. [pr.] ed.). Englewood Cliffs, N. J.: Prentice-Hall. ISBN 9780139381751. Retrieved 13 October 2014.
  62. ↑ Ortony, Andrew; Clore, Gerald L.; Collins, Allan (1988). "The Cognitive Structure of Emotions" (PDF). Cambridge University Press.
  63. ↑ Ribeiro, Tiago; Paiva, Ana. "The Illusion of Robotic Life" (PDF). Porto Salvo, Portugal: INESC-ID. Retrieved 9 August 2014.
  64. ↑ "Animatronics Degree Programs with Career Information". Education Career Articles. 25 March 2013. Retrieved 6 August 2014.

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