Page 88 - CNC Robotics

Chapter 3 I Making the Printed Circuit Board

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I make my boards using the toner-transfer method. It does have
r drawbacks, the most obvious being trace size . You can't make the
,
traces too small or close together. If you do, they will probably
short out because it's not ea sy to get the leftover paper off the
r board after ironing . As a result, the PCB tends to be a little bigger
than one made with photo resist. This project doesn't require
small components, so don 't worry about the size of the boards.
I created a do uble-s ided board for the driver layout (see Figure
3.2) but don 't feel obliged to make a do uble-sided board if you
do n't want to, or can't secure the material. Use the topside art (see
Figure 3.2
Bottom of driver board.

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