Hi Viesturs >> The problem is, that these amps are from Kuka and linked to the >> controller by some kind of bus system. At present I do not know anything >> about this bus. > > Do You have any documentation to find out, if the drive will accept > analog or pwm signal? AFAIK there has been some work to get LinuxCNC > to work with EtherCAT
Hmm, EtherCAT. That rings a bell, at least the most recent Kuka controller KRC4 uses that for some of the internal an external communications. I will try to find out what my servo amps use. > If I understand You correctly about purchasing simple robot and > putting LinuxCNC on it, I think that looking out for a Kuka or ABB > robot with damaged controls also is an option. Yes. There would be two possible goals, one retrofitting a robot whit a damaged or outdated controller hard- and software while the other one would be just to replace the PC (or just its OS) inside a Kuka controller and use LinuxCNC to together with the Kuka servo amps, maybe even the unit that digitises the resolver signals. > AFAIK 5 axis tool radius compensation is not available at the moment, > and I have no idea what would it take to implement that. Well, actually this is not an important feature as I currently have no radius compensation at all. It's just on the list of things that would be nice, as I know it from our 5axis mill controlled by a Siemens Sinumerik controller. > I am curious about the intended application of this concept - feeding > the position data from another application, because now it looks like > You are going to take out g-code interpreter, trajectory planner and > most probably some other modules, like i/o control, as well. What is > left is motion controller. Anything else? In deed, this would not use much of the LinuxCNC feature. The application is on-line machine path planing based high level feedback for example by optical tracking to follow an object, etc. The other application that I have in mind is testing new tool path planing and interpolation ideas. All this can be done using Kuka extension (I just don't know where to get the money for them), but if I was able to use LinuxCNC everything would work on a howl bunch of different machines right away and not be limited to KUKA robots. And I could start small by using a LinuxCNC controlled 3axes mill. See you Florian ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_123012 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
