Marc, I think he's talking about the Unipolar board, which has provisions for the pull up resistors built in. They may not be included in the kit, but the space is on the board for them. So you don't really need a breakout board with the unipolar board. The schematics on the website (last time I looked) were for the bipolar drives.
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Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
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