We ran into this problem today in the 2.5 branch we are using (and it is also in 2.4.7). It is REALLY bad when our Z-axis tries to move at 1500ipm when we have have it defined to go no faster than 500ipm. Can this fix be added to 2.5? Or alternatively, how would I apply this patch (to what?)?
Tom Begin forwarded message: > From: "Frank Tkalcevic" <fr...@franksworkshop.com.au> > Subject: [Emc-developers] Patch: Jog Speed exceeds axis MAX_VELOCITY > Date: October 31, 2011 7:58:41 PM EDT > To: "EMC developers" <emc-develop...@lists.sourceforge.net> > Reply-To: EMC developers <emc-develop...@lists.sourceforge.net> > > I posted this in the emc-users group because I thought it was a > configuration problem, but it appears to be a software issue. > > This only happens on a gantry system. > > When axis starts, emc is in EMC_TRAJ_MODE_FREE, meaning all axis can be > jogged freely. axis uses the EMC_AXIS_JOG command which checks that the > requested velocity does not exceed the MAX_VELOCITY value in [AXIS_n] > > With a gantry, emc starts in EMC_TRAJ_MODE_FREE, but after it has been > homed, it moves into EMC_TRAJ_MODE_TELEOP. axis will now jog using the > SetTeleopVector command by specifying the velocity as the current jog > velocity, or, if shift is being pressed, [TRAJ]MAX_VELOCITY. > > This is the first issue - axis does not look at the [AXIS_n] max velocities > when jogging in teleop mode. > > However, I feel the real problem is that there is no MAX_VELOCITY checking > when executing the emcTrajSetTeleopVector() function. > > So this patch addresses this by restricting the velocity in a teleop vector > command to the values of [AXIS_n]MAX_VELOCITY. > > I don't know how else TELEOP mode is used, or if this can cause other > issues. Or if the axis number mappings may cause other issues. The new > methods, setPoseByAxis and getPoseByAxis could also be move to a more > general place. (C++ member would be better) > > Frank > ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
