On 23 August 2017 at 05:17, Dave Cole <linuxcncro...@gmail.com> wrote:
> A 3D laser tracker was part of the control scheme to track the actual tool > head location. > That way standard rack could be used for the positioning mechanism and the > position could be corrected on the fly via the laser tracker. That might still be a good idea, because it seems that such a machine might need to be modular, so units that are friction-drive on standard rolled steel sections seems like a likely solution. There will be some tyre-creep, but the laser (or acoustic) feedback could correct it. I heard of a system where you have a microphone in each corner of the room and a "clicker" that is localised in space by clever acoustic processing. The application was measuring accelerometer positions when instrumenting a car or van body. If you have ever "walked" a Faro arm round a van body you would know why the system seemed attractive. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
