parallel port for cnc - Raspberry Pi Forums

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hi every one, since time wish build own cnc. bought breakout board , drivers based in tb6550. nevertheless, based in parallel port many other options. emc2 in linuxcnc has parallel interface well.

after many hours surfing in internet mind mess.

starting point use rpi2. in order use breakout board here first question:

has developed , interface convert gpio header in parallel port can comunicate breakout board emc2 ? of course need 3.3-5vots converter, conscient.

second idea that, if stepper motor driver needs 4 gpios, rpi2 has enough several, so... why not avoid breakdown board , connect drivers directly header. has developed control motors directly emc2 through headers?. again 3.3-5vots converter.

3rd option interface parallel2serie can conect usb of rpi2 breakout board through usb2parallel converter wire. read re usb not adequate real time control. nevertheless people has developed like: http://forum.arduino.cc/index.php?topic=92561.new#new needs arduino , not more boards.

im had programmed little in arduino , matlab knowledge in field of programming drivers hardware control in linux null.

hope can me , give me tipps.

in advance



raspberrypi



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