Andre' Blanchard schrieb: >> >> Why would it run out of lines? It should always have a buffer >> of interpreted G-code to read ahead. I did some experiments >> with the relatively new G64 Pxxxx command to set the allowable >> tolerance during contouring. I was doing 588 blocks of G-code a >> second, and that seemed to be limited by the feedrate I had set >> and acceleration limits for the machine, not the CPU. This was >> on a 600 MHz Pentium III, so much faster hardware is available. >> > > It kind of sounds like the current system may be running multiple machines > off one computer, some type of drip feed DNC. >
No, one computer per machine. But the software they have right now is ... let's say not perfectly optimized.;-). So it could happen from time to time on the older machines with older PCs. But we just had another case were it happened: We milled a gear which was defined over DXF file with a lot of small lines (some thousand). So the radius compensation took a while (some seconds). >>>>> - Measurement of the surface for a Z-correction >>>>> >>>>> >>>> probing? >>>> >>>> >>> At the beginning of each program we measure the Z-profile of the surface >>> of the sheet. This profile is used to correct the position of the Z-axis >>> to get a precise cutting depth. >>> >>> >> EMC currently doesn't have a feature like that. I suspect it >> could be done, but it wouldn't be trivial. >> > > May be easier to run an EMC program to probe the surface and store the data > in a file. > Run an offline program to appliy the probe data to the part program. > Then run the modified part program in EMC. > I am not sure. Let's say you have a movement over the whole sheet. How could you correct it if you have a little buckle in the middle? I would say it should be a layer somewhere between the vector generation and the hardware. What does "it wouldn't be trivial" mean in man-months? Regards, Kai -- Schaeffer AG Dipl.-Phys. Kai Schaeffer Vorstand Nahmitzer Damm 32 Tel. +49-30-8058695-25 12277 Berlin FAX: +49-30-8058695-33 http://www.schaeffer-ag.de HRB 93611 B, Amtsgericht Berlin Charlottenburg Vorstand: Jörg Schaeffer, Kai Schaeffer Aufsichtsrat: Dieter Kersten (Vorsitzender) ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
