Digital Plotter / Digital Plotter

This is a so good painting tool that ruler and compass can be omitted, it
helps us to draw accurately and increase its efficiency.
Digital plotter like a carpenter's ink marker, we can use it to draw a straight line easily.There is graduation scale on the edge of digital plotter,we can use it as protractor.
Digital plotter is an electronic tape.It can draw like a compass.There are three buttons set as switch,unit exchange and proportion switch,we can simplify the way of construction through intellecture.