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Amphibionics 05 3/24/03 8:44 AM Page 146
Amphibionics
Creating the Main Controller
Printed Circuit Board
To fabricate the printed circuit board (PCB), photocopy the art-
work in Figure 5.38 onto a transparency. Make sure that the pho-
tocopy is the exact size of the original. For convenience, you can
download the file from the author’s Web site, located at
www.thinkbotics.com, and simply print the file onto a transparen-
cy using a laser or ink-jet printer with a minimum resolution of
600 dpi. After the artwork has been successfully transferred to a
transparency, use the techniques outlined in Chapter 2 to create a
board. A 4-inch 6-inch presensitized positive copper board is
ideal. When you place the transparency on the copper board, it
should be oriented exactly as in Figure 5.38.

Figure 5.38
Controller board PCB
foil pattern artwork.

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