On May 19, 2011, at 3:19 AM, Viesturs Lācis wrote: > 2011/5/19 Tom Easterday <[email protected]>: >> >> On the IRC Chris Radek suggested there was no advantage to using Gantrykins >> and that it may have some problems and so I changed things to Trivkins. > > Did he explain and give some arguments?
No, but he was busy and had to go just after telling me this... > Gantrykins worked just fine > for me and other users are using it as well. > Gantrykins just links 2 joints to 1 axis, it does not interfere with > joint settings. If You had difficulties with motor acceleration and > movement, I would suspect that there was something wrong with settings > or maybe with the loop in the Geckos. But I have never used servos, so > that is just a guess. > > Yes, You are totally right - if You want each motor to move > independently, You have to treat them as separate joints. > > My suggestion would be - set up gantrykins without THC to work > properly and then add THC capability. > If there realy is some kind of problem, You can easily customize > trivkins module to have 2 joints hardcoded to Y axis. Gantrykins > allows flexibility to cover all kinds of situations, but You can > adjust a module for Your particular machine. That is what I ended > with, because I needed a module for 5 axis gantry machine. Ok, I redid the config using gantrykins and the parameters I used to get it working in trivkins and now it seems to work. The only problem now is that I see three joints 1,2,3 and when I try to switch to world mode it says I have to home all joints. I did home all (3) joints, how do I home the 4th - or am I missing something more basic? -Tom ------------------------------------------------------------------------------ What Every C/C++ and Fortran developer Should Know! Read this article and learn how Intel has extended the reach of its next-generation tools to help Windows* and Linux* C/C++ and Fortran developers boost performance applications - including clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
