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A headshell is a head piece designed to be attached to the end of a turntable's or record player's tonearm, which holds the cartridge. [1] Standard catridges are secured to the headshell by a couple of 2.5 mm bolts spaced 1/2" apart. Older, non-metric cartridges used #2 (3/32") bolts. [2]
The Series II [10] arm was SME's first arm. It came in two variants the 3009 and 3012 (9" and 12" respectively) tone arms which were widely adopted for audiophile and broadcast use during the 1960s and 1970s, at the higher end of the market.
A tonearm with the dial for anti-skating adjustment.. Turntable anti-skating is a feature used in phonograph turntables to prevent skating of the tonearm.. Due to the offset between the cartridge's axis (which is approximately tangential to the disc) and the tonearm's pivot, the force applied (through friction) by the rotating disc to the cartridge tends to draw the tonearm toward the center ...
A paint roller is a paint application tool used for painting large flat surfaces rapidly and efficiently. The paint roller typically consists of two parts: a "roller frame," and a "roller cover." The roller cover absorbs the paint and transfers it to the painted surface, the roller frame attaches to the roller cover. A painter holds the roller ...
Close-up shot of a diamond-pattern knurling on a cylindrical work piece. Knurling method: left/right with tips raised, spiral angle: 30°, pitch: 1 mm, profile angle: 90° Knurling is a manufacturing process, typically conducted on a lathe, whereby a pattern of straight, angled or crossed lines is rolled into the material. Knurling can also ...
It is sometimes called the Swedish wheel or Ilon wheel after its inventor, Bengt Erland Ilon (1923–2008), [1] who conceived of the concept while working as an engineer with the Swedish company Mecanum AB, and patented it in the United States on November 13, 1972. [2] It consists of a series of rubberized external rollers set at a 45° angle ...
Omni wheels or poly wheels, similar to Mecanum wheels, are wheels with small discs (called rollers) around the circumference which are perpendicular to the turning direction. The effect is that the wheel can be driven with full force, but will also slide laterally with great ease. These wheels are often employed in holonomic drive systems.
Straight wheels can be dressed by the operator to produce custom geometries. When surface grinding an object, one must keep in mind that the shape of the wheel will be transferred to the material of the object like a reverse image. Spark out is a term used when precision values are sought and literally means "until the sparks are out (no more ...