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Hand-held device used to create a tattoo From Wikipedia, the free encyclopedia
A tattoo machine (colloquially referred to as a tattoo gun) is a hand-held device generally used to create a tattoo, a permanent marking of the skin with indelible ink. Modern tattoo machines use electromagnetic coils to move an armature bar up and down. Connected to the armature bar is a barred needle grouping that opens the skin for the ink to flow into. All electromagnetic coil machines are powered by a wired regulated DC power supplies which send an electric current through the copper coils wrapped around opposing magnets and then moves the armature bar up and down. In addition to coil tattoo machines, there are also rotary tattoo machines, which are operated with regulated rotary motors and are powered by a wired external RC power supply or a wireless battery pack attached to the machine. There are many types of rotary machines, some that look similar to coil machines and some that look more like "pens". Coil machines are usually each tuned for a single function, such as for shading, or lining or packing ink. Rotary machines are multifunctional, taking any size or type of needle or cartridge needle. "The basic machine is pretty much unchanged today, in recent years variations of the theme have crept into the market, namely Manfred Kohrs' rotary machine of 1978 or Carson Hill’s pneumatic machine that uses compressed air rather than electricity, but the principle is essentially the same."[1]
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The predecessor to the tattoo machine was Thomas Edison's electric pen, patented under the title Stencil-Pens in Newark, New Jersey, United States in 1876.[2] It was originally intended to be used as a duplicating device, but in 1891, Samuel O'Reilly discovered that Edison's machine could be modified and used to introduce ink into the skin, and later patented a tube and needle system to provide an ink reservoir.
While O'Reilly's machine was based on the tattoo rotary technology of Edison's device, modern tattoo machines use electromagnets. The first machine based on this technology was a single coil machine patented by Thomas Riley of London, just twenty days after O'Reilly filed the patent for his rotary machine. For his machine, Riley placed a modified doorbell assembly in a brass box. The modern two-coil configuration was patented by Alfred Charles South, also of London. Because it was so heavy, a spring was often attached to the top of the machine and the ceiling to take most of the weight off the operator's hand.
″To move tattooing forward, German tattoo artist Manfred Kohrs had to take a look backward.″ In 1978, Kohrs "introduced the first new design for a rotary machine in nearly a century. His machine was functionally similar to O'Reilly's except an electric DC motor, rather than electrified magnets, drove the needles. This slimmer and streamlined version became lighter, quieter, and more portable. It also gave artists more control while ensuring the operator's hands and fingers cramped less. While some artists gravitated to this rotary revival, others preferred to stick with their trusty coil machines."[3][4][5]
Most modern tattoo machines can control needle depth, speed, and force of application, which has allowed tattooing to become a very precise art form. Such advances in precision have also produced a style of facial tattooing that has attained mainstream popularity in America called dermapigmentation, or "permanent cosmetics" creating results such as addition/removal of freckles, beauty spots and scars.
There are many types of machines. Liners and shaders are the more common machines from a technical standpoint. Mechanically, there are coil tattoo machines; also pneumatic machines, and rotary, or linear, tattoo machines.
Tattoo machines are not limited to just these types. A common variant is having a "cutback", which uses stiffer front springs. This is more commonly used in liners, but is known to be used on shader machines, more typically for portrait work. Machines are usually categorized into long stroke and short stroke varieties. The longer-stroked machines are good for coloring and shading, as well as sculpting lines, while doing less damage to clients' skin. Shorter-stroke machines are commonly used for lining in a single pass style, and also in a shader setup to achieve a more subtle gradation of black such as would be found in portraits. Length, width, tension, angle, and stiffness of the spring varies the functionality of the machine. The contact gaps, as well as capacitors and even the style of machine and its angles of deflection, can also all be variants in machine tuning. The proper tuning of the machine is essential for the type of machine being used, also for the type of tattoo the artist is doing.
[9] Coil tattoo machines function by passing current through two coils which alternate electromagnetic forces to move the tattoo needle up and down rapidly. Power supplies adapt AC current to power the machine. This allows artists to control the voltage at which their machines operate at and can be manipulated to achieve line variation.[10] Coil machines consist of about fifteen different parts including but not limited to the needle, tube, tube grip, tube clamp, needle bar, armature bar, front spring, contact screw, o-ring, rear spring, rear spring mounting screw, and a yoke. These parts are held together with a frame. Frames are constructed from a wide variety of materials such as brass, iron, steel, zinc, and aluminum. The type of frame used heavily influences the overall operation of the tattoo machine. Some frames (such as those constructed from iron or brass) reduce vibration during operation. Other lighter frames (such as those constructed from aluminum and zinc) reduce the physical strain on artists during operation. Improper frame selection/alignment affect the longevity and quality of a coil machine’s overall function. Coil tattoo machines give artists a high degree of control over every aspect of the machine’s function. This requires artists to be intimately knowledgeable about their machines to efficiently utilize such a device.
[9] Rotary Tattoo machines function by using the rotational motion of an electric motor to move a needle/bundle of tattoo needles up and down rapidly. Rotary machines, like coil machines, require a power supply that adapt AC current to power the machine. This voltage may be manipulated to achieve line variation.[10] Rotary machines consist of about seven different parts including but not limited to the grip, tube, cam wheel, “adjustment mechanism”, and a power connection. Rotary machines vary in the type of needle they use. Common rotary machines use standard needles but can also use cartridge needles. This differs from the more traditional “coil tattoo machine” as one rotary machine can be used for both lining and shading. Rotary machines can be purchased pre-aligned and generally work “out of the box”. This makes them more beginner friendly. The electric motor that drives the needle up and down reduces the operational vibration of the machine and thusly reduces the physical strain of tattooing on artists. Rotary machines of all types typically produce less noise and vibration during operation.[11] Coil machines produce a sort of buzzing noise that has commonly been associated with tattooing. Clients sometimes feel more comfortable being tattooed using a rotary machine due to how quiet the machines are. Rotary machines come in a variety of types. Direct drive rotary machines connect the needle bar directly to the motor. Eccentric rotary machines use an eccentric cam drive that converts the rotational movement of the motor to an oscillating motion which in turn drives the needle. Pneumatic rotary machines, as their name implies, utilize compressed air to directly oscillate the tattoo needle and do not use an electric motor whatsoever.
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