On Sun, Mar 7, 2021 at 7:25 AM Gene Heskett <[email protected]> wrote:
> On Sunday 07 March 2021 06:58:01 Gene Heskett wrote: > > > > > It takes at least 5 seconds for it to get up to search speed, and > > > another 5 seconds to get back to a stop after the home switch has > > > been found, coasting 20-25 degrees getting stopped, then it goes > > > into latch speed and takes another minute to get back to the switch > > > edge. And theres a random offset being applied to the home position > > > in the linuxcnc dro that does not exist > I don't know the inner workings of the LinuxCNC home switch routine as my machine doesn't have a home switch (someday hopefully). However, it sounds like an acceleration/deceleration setting for the homing routine is too low. At least that's what I would look at with an off-the-shelf motion system. This isn't related in terms of code to LinuxCNC, but in general motion control practice: For an old Parker compumotor 6k2 motion controller, the homing routines had their own Accel, decel, home to index (was it John D w/ the 2 mechanical switches), and other routines such as approach from CW or CCW, go past and slew back slowly, etc... I would look at that rather than the linux setup (isolcpus, latency, etc). But, I'm not an expert on this.. Mark _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
