Stuart Stevenson wrote: >> >> The setup is done before the production. The operators were talking about >> the floor to floor production. >> >> As time goes by I will be able to determine why there is an increase in >> production. Machine slide speed is not the reason. I did not try to increase >> the rapid motion speed. The feed rates would be the same per the program. >> Using the same fixtures, cutters and programs we get almost twice as many >> parts per shift with EMC2. I don't know why. >> Since I worked on it, I know that the Gettys servo amps do the same as they did on the old control and no more. I did some block processing tests on a 600 MHz Pentium and had poor results until I was informed of the G64.1 Pxxx option. Then I was blown away by the performance, it was doing over 700 G-code blocks a second. I think the computers in your machines are faster that 600 MHz, so they should do better. But, unless you are contouring complex shapes, I don't think you really need that kind of block processing rate.
I only have a few data points. I had an A-B 7320 control (1978-vintage 16-bit minicomputer) and it had a really slow block processing rate of about 4 blocks a second. Of course, it thought it was reading the G-code from paper tape! I've seen a few other controls where you could pretty much read the G-code as it scrolled by. Anyway, I think the only possible variables would be block processing speed, acceleration, or some kind of stalls when changing direction of movement. You can certainly slow EMC to a crawl with G61 on contouring-like moves. Jon ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
