>> You don't need a joint at all. You can just have an encoder >> channel that doesn't connect to any joint.
I will look into the halsampler solution. Can you point me to a working example? The end goal is indeed a point cloud. One issue that might make it simpler (or not!) to have an actual joint is that I have still not determined if the probe/wheel can work on a linear axis or if I need to do a trailing rotating arm so as better to roll over steep features without snagging. > True, though there is something to be said for having a dummy axis > just so that the LinuxCNC GUI will display the encoder position. > > You don't need a stepgen, just set up the system as normal but leave > joint.N.motor-pos-cmd unconnected. Connect motor-pos-fb to the encoder > counter. > Then set the following error limits to several miles, and you should > get an onscreen readout of the probe position. (set the gui to actual, > not commanded..) This works with some caveats. The back plot updates to show movement of z position until I enable the joints. At which point it stops updating the back plot. The position readout does keep updating so maybe it will work. > I am not sure what the built-in parameters such as #<_Z> show in this > situation. I would suspect that it is commanded position but it's not > hard to find out. That would be the next step.. Thanks for the help, gentlemen. _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
