On Dec 5, 2008, at 9:57 PM, Jon Elson wrote: > Stuart Stevenson wrote: >> Stephen, >> I don't want to imply that I think the Z level affected the motion >> - just passing along all the information given to me. >> The motion is as if the g2 is g1. >> > Barring a completely flukey software bug, I doubt that is what > happened. Was this a heavy cut? > I can easily imagine that taking a light cut first, it follows the > commanded path. Then, at greeater depth, the cutting forces overload > the servos and you get some different path. Are the following error > limis set tight on that machine? If so, then the above theory is > wrong. What radius was the G2 move? Is there any possibility > there is > some oddball character in that particular block of G-code that caused > EMC to mis-interpret the command? > I think that was reported recently, and it was a non-printing > character > inserted by a word processor. > > I can imagine a case where a large radius arc has some short G1 moves > after it. If the arc move was ignored for some reason, the next G1 > move > would appear to actually cut straight across the planned G2 start and > end points. > > Jon > Jon, Take a look at the screenshot. It just plain skips the G2 so the move is 2 G1's one to the start of the radius and the second to the end of the G1 following the radius. Code is junk.txt in on his server. The code runs fine in my older sim and fine on the mazak. Stuart says he has tried replacing the block of code to no effect so this is not something simple. HTH Dave > ---------------------------------------------------------------------- > -------- > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, > Nevada. > The future of the web can't happen without you. Join us at MIX09 > to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http:// > 2009.visitmix.com/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users
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