It was replaced in 1994 by a newer design incorporating 16-tooth and 24-tooth gears on opposite sides of the casing. They can also be meshed with the newer double bevel gears. The original differential from 1980 had a 28 tooth bevel gear, designed to be meshed with the 14 tooth bevel gears (replaced by the 12 tooth gears) to give 2:1 reduction. In addition to standard gears, some kits include a rack, a clutch and even worm gears and differential gears. There is also a 16 tooth spur clutch gear, a 20 tooth double bevel clutch gear and a 24 tooth friction gear that slips when a certain amount of torque is put on it to prevent motors from damaging any parts or burning themselves out. The double bevel gears are cut so they can also be meshed as spur gears. Gears come in several sizes: 8 tooth, 16 tooth, 24 tooth and 40 tooth spur gears 12 tooth, 20 tooth, 28 tooth and 36 tooth double bevel gears and 12 tooth and 20 tooth single bevel gears. Gears have been included within Lego Technic sets since 1977 as a way of transferring rotary power, and of gearing-up or down the speed. Studless beams ( studs are the bumps traditionally associated with Lego parts), referred to as 'liftarms', were first introduced in 1989 and through the 1990s and 2000s, an increasing number of liftarm designs have been introduced over time. The holes also act as bearings for axles, on which gears and wheels can be attached to create complex mechanisms. These holes can accommodate pins, which enable two beams to be held securely together side-by-side, or hinged at an angle. The most significant change from normal Lego is that single-stud wide bricks ('beams') have circular holes through their vertical face. The Lego Technic system expands on the normal Lego bricks with a whole range of new bricks that offer new function and building styles. Lego Technic components Common Lego Technic components In June 2023, The Lego Group built a life-size replica of the PEUGEOT 9x8 24H Le Mans Hybrid Hypercar containing 626,392 Lego pieces. The latest generation of the Mindstorms range, the Robot Inventor (released October 2020), as well as its predecessors the Mindstorms EV3 (released September 2013) and the Mindstorms NXT (released August 2006), are based on the studless construction method. Mindstorms, a Lego line of robotic products, also uses many Technic pieces, although it is sold as a separate line of products. (Studs are the small circular knobs which appear on traditional Lego bricks.) This method utilises beams and pins rather than Technic bricks. Technic sets produced since the year 2000 use a different construction method, described as "studless construction". The style of Lego Technic sets has been changing over time. In recent years, Technic pieces have begun filtering down into other Lego sets as well, including the BIONICLE sets (which were once sold as part of the Technic line), as well as a great many others. Some sets also come with pneumatic pieces or electric motors. Other special pieces include beams and plates with holes in them, through which the axles could be installed. Technic sets are characterized by their use of special pieces, such as gears, axles, and pins, which allow the construction of working mechanisms and mechanical structures. The concept was introduced as the Expert Builder series and originally Technical Sets in 1977, and was renamed Technic in 1982. The purpose of this series is to create advanced models of working vehicles and machines, compared to the simpler brick-building properties of normal Lego. Lego Technic / ˈ t ɛ k n ɪ k/ (stylized as LEGO Technic) is a line of Lego interconnecting plastic rods and parts. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. This article's lead section may be too short to adequately summarize the key points.
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