On Sonntag, 19. April 2020, 15:46:36 CEST Juergen Gnoss wrote: > Sure, there are some occasions where trajectory needs to be recalculated, > even after they made it already to the part where actual iron gets moved.
I think, there is no need to recalculate motion path based on users feed- override action. In my mind, optimization of motion queue is done to avoid full stop between motions. But on touching feed-override or in singlestep mode, there's no requirement to path optimization. > G00 X... Y... > G01 X... Y... F... > G02 I... J... F... > > has been sent already to three of motions buffers > G00 is done and disappears from motions buffers. > G01 move is half the way done, while the operator moves the feed override > slider. Now, what is what actual happens and what would we expect to > happen. Well, the only time- (and cost-) critical question is the case, when the user turns feed-override to zero. Than the machine should stop immediately. Any other case should affect the motion speed only. So from other cnc-controller I know, that they apply feed-override as a time- value which will be applied on step-generation. No other software-part cares about feed-override. If the time-value at step-generation is handled in realtime, than the machine is able to do a fast stop. ... and for so - feed override should be applied independant of the move command or whether it is between moves or whatever. Feed override is the most important realtime value (in my mind). Reinhard _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
