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The piano action mechanism [1] (also known as the key action mechanism [2] or simply the action) of a piano or other musical keyboard is the mechanical assembly which translates the depression of the keys into rapid motion of a hammer, which creates sound by striking the strings.
Amdek's primary focus was on the potential uses of personal computers to assist musicians, and in 1982 they introduced the DXY-100, the company's first pen plotter, with the intent of allowing users to print out their own sheet music. Soon realizing the printer had a much larger market potential, in 1983 Amdek became the Roland DG Corporation. [41]
The Schimmel piano company has made experiments along these lines. These include a grand piano whose rim, lid, and other case parts are made of acrylic glass. The acoustic properties of the material used are claimed to be excellent. However, the somewhat lurid appearance of the acrylic piano, as well as its high cost, have kept it a novelty item.
The initial prototype was created using an Objet Connex26 using VeroClear printing material (a transparent material) in order to show the magazine's round count and feeding action. [71] It was able to handle enough stress to fire 342 rounds and can fire 227+ rounds in quick succession. [70] Feinstein AK Mag [66] [72] [73] March 2013 [66] [72]
The company began to specialize in manufacturing ivory piano keys in 1839 [4] and eventually piano action mechanisms. The company made its first screwdrivers in 1834 but stopped in 1840, instead selling the handles and blades to smaller companies made at the Pratt, Read and Company Factory Complex .
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3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.