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In August 2017, the CR-8 was released, a cantilever-style printer, this time with the display mounted inside the base of the printer. It was also offered with an optional laser-engraving add-on. The CR-8 had a build volume of 200x200x200mm³. [10] In 2018, Creality released the Ender 3. A cartesian printer with a bowden extruder.
Laser engraving metal plates are manufactured with a finely polished metal, coated with an enamel paint made to be "burned off". At levels of 10 to 30 watts, excellent engravings are made as the enamel is removed quite cleanly. Much laser engraving is sold as exposed brass or silver-coated steel lettering on a black or dark-enamelled background.
The Spanish Prisoner scam—and its modern variant, the advance-fee scam or "Nigerian letter scam"—involves enlisting the mark to aid in retrieving some stolen money from its hiding place. The victim sometimes believes they can cheat the con artists out of their money, but anyone trying this has already fallen for the essential con by ...
The CO 2 laser is suited for cutting, boring, and engraving. The neodymium (Nd) and neodymium yttrium-aluminium-garnet lasers are identical in style and differ only in the application. Nd is used for boring and where high energy but low repetition are required. The Nd:YAG laser is used where very high power is needed and for boring and engraving.
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Indeed, gathering fake reviews has become big business. [2] In 2012, for example, fake book reviews have been revealed as significantly affecting ratings on Amazon . [ 3 ] [ 4 ] In 2016 Amazon banned the practice of reviewing complimentary products, researchers have shown that the process still continued as of 2021, but without any disclosures.
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