[tz1238]

What's the difference between their breakout board and the parallel interface card. For safety sake would it be better to go with the interface card or save the money and run the breakout board? Money isn't the issue since it's only about 25 dollars. I just don't want to put something in that's not really needed. I'm making a 3 axis CNC Router.

[cpsheets]

Well I used their C-10 bidirectional breakout board in my conversion of a old techno isel router. Just a couple of things I liked is the fact that the board can take voltage from like 3.3 v to 5 v, the pull down resistors on the input circuits leave no open air connections, and jumper options add versatility for expansion. And like you said it's only 25.49 for me it was a no brainer.

[High Seas]

Suppose it also depends on which axis cards you'll use. For example, the xylotex board doesn't require/need a BOB -- unless you're gonna put a couple together and need a way to get all the LPT headers sorted out.
I went with the less expensive and am putting 2x 3 axis Xylotex together to get to 6.
:cheers: Jim

BTW the cnc4pc guys were real quick with questions and support