Hello all, I built a gantry type router a year or so ago and was more interested in getting it running than anything else. My gantry runs along the Y axis and has 2 motors (joints). I am running the Axis GUI on LinuxCNC 2.6.x.
My current setup has the ystep and ydir signals driving two motors. Slaved together is maybe the word I am looking for. See HAL snippet: net ystep => parport.0.pin-04-out net ydir => parport.0.pin-05-out net ystep => parport.0.pin-06-out net ydir => parport.0.pin-07-out I have cut loads of stuff with the machine and feel like I am at a point I want to make it better. Up to now, I would bump the gantry against a hard stop to square it and home the axes by hand. I want to add homing switches which brings me to my first observations. 1) I know that the 2.7 version of LinuxCNC has the gantry component and I have looked at a couple of configurations on how that it set up, so I believe the gantry joints can be homed independently and squared by adjusting how far the joint is moved off the switch. 2) I have seen a couple of post from BigJohnT were he recommends using the 2.8 pre version (JA14 branch) as trivkins now handles an axis with multiple joints. I have found a little information on this but may be able to muddle my way through configuration. So, my questions are: 1) If I am going to go through all the work of setting this up, which would be the recommended version? 2.7 with the gantry component, or the JA14 using trivkins? 2) If the JA14 branch is the recommended version to use, how do I get it installed? My controller computer was installed using the Debian Wheezy hybrid ISO. 3) Will the JA14 branch eventually be released as version 2.8? If I use the JA14 branch and it is released as 2.8, how does that affect me? Does it auto-magically become 2.8 or am I still on a developmental branch? If not, how do I switch back over to the 2.8 stable release after it comes out. If you have references you would recommend for reading, I will be happy to read them. Or other advice. I know you guys get a lot of gantry homing question stuff and I hope I am not being too much of a pain. Thank you for your advice, Joe Hildreth ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
