Yes. On 1/8/07, Colin <[EMAIL PROTECTED]> wrote: > > > > > Hello, > > I have been investigating using EMC2 and some stepper motors to a small > milling machine. I have a cloudy area of understanding around driving the > stepper motors. As usual I am trying to do it on the cheap J and hence would > like to develop my own stepper driver. I am hoping someone can provide some > direction so that I don't fall off any cliffs. > > So far I believe there is two ways to generate an amplified stepper signal > (half, full etc). > > > > Method 1 > > Using the parport config to send a step signal and a direction signal for > each axis. Run these signals into a stepper driver chip which is configured > for the stepper phase that I require. This method should leave a few extra > pins on my parallel port to play with later. > > > > Method 2 > > Use the functionality of the stepgen module to perform the required stepper > phase for each axis. Amplify each signal into the motor. This method will > use up more parallel port pins depending on the amount of coils in the > stepper that I purchase, I may even need another port if 5 phases is > required. > > > > Are both methods possible? Which method is the most common or gives the best > result? > > I also intend to opto isolate the signals coming from the parallel port to > protect my motherboard, is there any unforeseen problems doing this? > > > > Cole > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > >
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