Another man's comments...... The Bridgeport and Fanuc controls that I have used buffer the handwheel increments and execute all of them, even if it has to run after you stop moving the handwheel.
I prefer that the handwheel behavior be that way, and I greatly prefer handwheels with mechanical detents strong enough to prevent the wheel from spinning without my hand on it. For instant stop response I would suggest using buttons that are interfaced via HAL, actually 4 buttons. Slow negative, fast negative, slow positive, and fast positive. Releasing a button should stop the machine as fast as possible within acceleration limits. Keys on the keyboard can be used, but are risky because of lost keystrokes due to change of focus, erratic handling of autorepeat keys, and potential of jog from more than one remote GUI. If it were up to me, remote GUIs would not have jog ability, it belongs at the machine only. Regards, Steve Stallings > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Ray Henry > Sent: Monday, March 19, 2007 11:50 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] handwheel over run > > > On Mon, 2007-03-19 at 11:27 -0500, Stuart Stevenson wrote: > <S> > > Any time I want to keep the handwheel dial position synchronized > > with the axis positon I have to move the handwheel slower than the > > machine will move the axis. > > A friend with a couple of fanuc controlled machines told me that he's > never been able to run a handwheel faster than the axis could move. A > bit of digging showed rapid traverse of 600 IPM, max step increment > 0.01, and 100 pulses per revolution of the handwheel. At that it would > take more than 10 revolutions of the handwheel per second to exceed > rapid. > > Rayh > > > > > ------------------------------------------------------------------------- > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
