Viesturs Lācis wrote: > 2013/7/11 Jon Elson <[email protected]> > > The bending is done by a motor/gearbox, and you just > >> shut off the motor when the right angle is reached. So, >> it can't be dealt with like a typical axis. I'm pretty sure there >> is a way to do this, but I can't remember how. >> >> > > Could you, please, explain, why can't it be treated like a typical axis? > How about this kind of modification: > 1) use A or whatever other axis word to set the bend angle; > 2) use axis.n.motor-pos-cmd pin to read the requested value and link that > to your HAL component. > > I understand that HAL component is the place to compare actual bend angle > with requested to turn the motor off, once requested value is reached. > Just like John, I am interested in how do you intend to track actual bend > angle? > Hmmm, OK, maybe this is simpler than I imagined. Now, axis.n.motor-pos-cmd will be interpolated by the trajectory planner to ramp up at the programmed feedrate? I guess that could work fine as long as the specified feedrate is faster than the motor moves. (Otherwise the motor might be turned on and off rapidly, which would be hard on the motor and drive.)
Thanks, Jon ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
