December 2010
Intermediate to advanced
336 pages
9h 40m
English
book
The Unofficial LEGO MINDSTORMS NXT 2.0 Inventor's Guide, 2nd Edition
by David J. Perdue, Laurens Valk
Content preview from The Unofficial LEGO MINDSTORMS NXT 2.0 Inventor's Guide, 2nd Edition
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Chapter 16. The Printer: A Drawing Machine
So far, all the projects in this book have focused on mobile robots that use treads, wheels, or legs to get around. Now, in the final chapter, you’ll learn to build and program a stationary robot: the Printer (Figure 16-1). The Printer is a printing machine that uses a pen to write or draw on a sheet of paper. By drawing different combinations of lines, the Printer can produce basic shapes and letters.
Understanding How the Printer Works
The Printer draws lines on paper in much the same way that humans do. To draw a line, it presses a pen against a sheet of paper and moves the pen in different directions. To draw a new line in a different place, it simply lifts the pen and moves it and then ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.