Originally it was thought that the computers of the time did not have the horsepower to run the trajectory planner fast enough, so interpolators were used to achieve a faster update rate.
Later as computers became faster this was not necessary and it was discovered that the interpolator approach caused some problems when rigid tapping. At that time using a 1:1 ratio became the default. I would prefer to keep the possibility of interpolation because future decoupling of processes may once again create a situation where interpolation might be an advantage. Steve Stallings > -----Original Message----- > From: Michael Haberler [mailto:[email protected]] > Sent: Tuesday, August 20, 2013 4:09 AM > To: EMC developers > Subject: [Emc-developers] q on motion rationale: why are > cubic interpolatorsdisabled? > > > reading motion code I noted that the trajectory and servo > cycle periods are identical (at least by default) > > this means the cubic interpolators operate at rate 1 per > segment, meaning they are completely disabled and provide no > smoothing ontop of what is generated by tp.c/tc.c > > what was the rationale for disabling the interpolators to start with? > > - Michael > > > > -------------------------------------------------------------- > ---------------- > Introducing Performance Central, a new site from SourceForge and > AppDynamics. Performance Central is your source for news, insights, > analysis and resources for efficient Application Performance > Management. > Visit us today! > http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/414 0/ostg.clktrk > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
