Engineers and designers used when drawing with a pen to use thetraditional ruler to measure the different fonts and graphics to beas accurate as they want, but there is an alternative that is comingtothis ruler.
Korean designed "Wu valid" tool "Constrained Ball" which keepsthe use of the ruler later, as this toolhas two, the first installation ofthe pen, and the second measuring line-drawing unit of the "poison " tothe ruler keeps the old ones.
This tool is a small place by a circular motion to put the pen, suitable for any size of a pen, and bottom of the wheel are movingin the course of drawing lines to ensure balance and accuracy,andabove there is a small screen written by several centimeters during the line-drawing.
Help the performance of constrained ball also keeping the balance of the pen when you select thelines to speak from the bottomrather than to appear in a zigzag pattern, in addition to modify thelengths of lines horizontally and vertically on the paper.
Korean designed "Wu valid" tool "Constrained Ball" which keepsthe use of the ruler later, as this toolhas two, the first installation ofthe pen, and the second measuring line-drawing unit of the "poison " tothe ruler keeps the old ones.
This tool is a small place by a circular motion to put the pen, suitable for any size of a pen, and bottom of the wheel are movingin the course of drawing lines to ensure balance and accuracy,andabove there is a small screen written by several centimeters during the line-drawing.
Help the performance of constrained ball also keeping the balance of the pen when you select thelines to speak from the bottomrather than to appear in a zigzag pattern, in addition to modify thelengths of lines horizontally and vertically on the paper.
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