On 7/26/2011 8:42 PM, andy pugh wrote: > On 26 July 2011 17:21, Viesturs Lācis<[email protected]> wrote: > > >> Here is my "remix" of trivkins (if You want to change its name, simply >> replace the name through the file): >> > I had a fiddle with this, and think I have it working. There are a few > quirks which make me yearn for ja3. > There is a sample config here: > http://www.linuxcnc.org/images/fbfiles/files/stepper_xyza.zip > > It consists of a very basic config (though it only goes as far as a > set of stepgens, there are no output pins configured) and a kinematics > file called "swapkins" written by Visteurs and then fiddled with a > bit. > > Unzip the attached file into your configs directory. > > You need to install the kinematics module, so navigate to the place > where you extracted the files, and then: > sudo comp --install swapkins.c > You will be asked for your password. You will get three warning > messages, ignore them. > > You should now be able to start the sample config in the normal way. > Then you need to home the joints one by one (I am not sure why the > homing sequence is inactive, or why the "homed" spot never appears by > joint 4.) > > Then switch to world mode by pressing $ > > You can now jog X in the normal way, and watch the input to stepgen 0 > change in the pyvcp panel on the right. > select the "swap" checkbutton, and then jogging or moving X controls > the 4 stepgen. Deselect the button and you have control of stepgen 0 > again, and the x-display returns to the previous value. > > You quite often get a small twitch from the axes on the change, and a > following error. I think this is some sort of timing problem with the > changeover in the kinematics file, and that the solution is to be a > bit cleverer during the first call to the kins after a mode change. > However, moving to zero before swapping is another solution. > > > Nice... I'll try it out.
Thanks for getting into this. Dave ------------------------------------------------------------------------------ Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
