Rob Jansen wrote: >Jim, > > >>with these motors im not looking for step direction, i want to use >>stepgen to switch the 4 coils, thats why I'll use a higher step mode, >>like 5 or 6. I was thinkin about just usin NPN transistors from the >>parport to switch the coils. if i end up killin the parport by not >>usin optoisolators, big whoop ill use a different computer to play with. >> >> >I'm not exactly sure what you mean with the step mode, but using opto >isolators is simple. My motor controllers have built-in opto isolators, > > [snip] He's saying that he wants to run directly from the parallel port by directly driving four transistors with four parport outputs per motor.
>You do have motor drivers? There is no way you can control them directly >from the parport. > > Actually, you can. I didn't look at the step types, but there are two types of direct 4-phase drive: full-stepping and half-stepping. - Steve ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
