4 wire motors all. I will try inverting the step signal.
On Thu, Nov 19, 2009 at 2:57 PM, Andy Pugh <a...@andypugh.fsnet.co.uk>wrote: > 2009/11/19 Chris Knowlton <cknowlt...@gmail.com>: > > > What do I > > set them at? This board supports up to 1/16 microsteps. > > It rather depends on if you run out of computer speed or motor speed > first. If you can easily drive the motors faster than they can move > the machine, then more microsteps can give you a bit more resolution > and possibly a bit more performance (smoother stepping is better for > top speed. Sometimes) > > > Once I pick a setting for this, how does that translate to the axis > settings > > "Driver Microstepping"? Does 1/16 = 16? > > Exactly. > > > The symptoms are that the coarse feed moves are smooth and seem to work > fine > > (though with less torque than I expected). The fine g-code steps just > make > > the motors sit there and vibrate. Experimenting with the stepmodes made > the > > system make some really exquisite squeals and vibrations, so I thought I > > might better ask a question or two before I hurt myself :-) > > It is probably worth trying inverting the sense of the step signal in > the parallel port config screen. > > Do you definitely have the motors correctly wired? If the motors only > have 4 wires it is pretty straightforward, but with 8-wire motors it > is possible to have one phase wired back-to-back so that is is totally > ineffective. > > -- > atp > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus > on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
