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A single needle tool is used for embossing or stippling. A 2 needle tool is used for even perforations for marking areas which are to be cut with scissors. A 4 needle tool is square-shaped and a necessity for classic lace patterns. 3,5,7 and half-circle needle tools are used for decorative additions to lace patterns.
The dot pattern is a two-dimensional barcode; the most common is the proprietary Anoto dot pattern. In the Anoto dot pattern, the paper is divided into a grid with a spacing of about 0.3 mm, a dot is printed near each intersection offset slightly in one of four directions, a camera in the pen typically records a 6 x 6 groups of dots.
The Digital Pen is an ink pen combined with a digital camera that digitally records everything that is written. It works by recognizing a non-repeating dot pattern printed on the paper. The non-repeating nature of the pattern means that the pen is able to determine which page is being written on, and where on the page the pen is.
The ink used for writing is usually water-based and is much less viscous than the oil-based ink used in printing. Certain specialty paper with high ink absorption and constant texture enables cleaner lines, [ 11 ] although parchment or vellum is often used, as a knife can be used to erase imperfections and a light-box is not needed to allow ...
Quill and a parchment. A quill is a writing tool made from a moulted flight feather (preferably a primary wing-feather) of a large bird.Quills were used for writing with ink before the invention of the dip pen/metal-nibbed pen, the fountain pen, and, eventually, the ballpoint pen.
A fountain pen is a writing instrument that uses a metal nib to apply water-based ink, or special pigment ink—suitable for fountain pens—to paper.It is distinguished from earlier dip pens by using an internal reservoir to hold ink, eliminating the need to repeatedly dip the pen in an inkwell during use.
Classic DPN mechanism: Molecular ink diffusing from a nanoscale tip to a surface through a water meniscus. Dip pen nanolithography (DPN) is a scanning probe lithography technique where an atomic force microscope (AFM) tip is used to directly create patterns on a substrate. [1] It can be done on a range of substances with a variety of inks.
A pencil drawing can have many shades of grey depending on the hardness of the graphite and the pressure applied by the artist, but an ink line generally can be only solid black. Accordingly, the inker has to translate pencil shading into patterns of ink, for example by using closely spaced parallel lines, feathering, or cross-hatching. The ...
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