2010/12/15 andy pugh <[email protected]>: > On 15 December 2010 16:30, Chris Radek <[email protected]> wrote: > >> The biggest problem using ABC for linear axes is they don't scale >> with G20/G21. If you make a gantry with X and A (which you should >> not -- I don't know why people think they want this, > > I think they do it because it ends up neater. An XYZU ganty ends up > with vestigial A,B,C axes and 3,4,5 joints that don't do anything > except clutter up the interface and DRO.
My waterjet machine is a gantry setup, and I have joints 0 and 1 assigned to X, joint 2 to Y and joint 3 to Z, and there are absolutely no problems with scaling joint 3, it works like a charm, when configured as linear axis. Andy is right about the unused axis being shown in the GUI interface and DRO. That is one of the things that I am really hoping to be solved in joints_axes branch - number of joints for my machine is number of axes plus one, so there is one abundant letter among the axis letters in the GUI. Not that it does not allow me to use the machine as I intended to do, but it would be very nice to have things clear and correct. I think that such a minor unsorted details might be keeping serious machinists from using EMC2, as they make an impression of somewhat unfinished product. >> but it comes up >> often) and you use G20/G21 you'll get one side moving 25.4 times as >> fast/far as the other. > > That would be a bad thing then? As I mentioned, I have not noticed any strangeness with scale and wrong travel distance. Viesturs ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
