Jon et al. Well put! I've been running emc since you had to patch the kernel (0.9 patch , its been so long I can't remember) to get emc to run. Somewhat before the BDI's. I've never had a well checked out controller take off on me.
Anytime I've had a problem I had done something stupid and found out about it rather quickly. Usually abort takes care of it. The E-stop is a pretty lonely button ... doesn't get much attention. ;-) Once an g-code program is checked out it is a LOT more reliable than the nut behind the keyboard. I put a lot of time on the machine, often several hours a day, over the years that counts up. Dave On Nov 17, 2007, at 8:50 PM, Jon Elson wrote: >> [EMAIL PROTECTED] wrote: >> > So, question is where is >>> big incentive to use EMC2? One wrong move of machine that ran on >>> EMC2 >>> will cost me between & 10 000-400 000!!! Todays parts are very >>> expensive. When I said machine wrong move I meant software got >>> corrupted machine stop or made wrong move etc. >>> I am sure that open source software for machine control must have >>> different requirement in compare to open source software for word >>> processing or video graphic. > I have been running EMC since 1998. I have never had it cause a > "wrong move" that was due to computer failure, software > corruption, or software error. I have had it do a number of > "wrong moves" due to OPERATOR error, one time bringing a boring > head down on my hand. I thought about the likelihood of a > computer malfunction vs. operator error for a moment, and then > carefully pushed the RIGHT button and took the tool off my hand. > I thought about hitting E-stop and winding it up manually, and > decided it was me that made the mistake. So, that is about 9 > years of use with NOTHING I could ever lay to abnormal operation > of the software. I have also had to abort or Estop a whole > bunch of CNC programs that had mistakes in them, or I forgot to > set the axes correctly, or an endless number of goofs. > Forgetting to set the axes at all, or making a mistake while > using the edge finder and setting to +0.1" instead of -0.1" is > very common, I have done this literally hundreds of times! > > On the other hand, my A-B 7320 CNC control croaked on me 3 times > in the 9 months or so I used it before EMC was ready for real > work, back in 1997-1998. This never wrecked any work, but it > sure could have if I'd been cutting when it went down. > > (I have had an occasional hardware problem on my CNC system with > EMC, usually due to bad connections somewhere, but it will show > up when I try to start the system up, so I don't have tooling > and workpieces loaded yet.) > > Jon > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
