Your New Years eve sounds as exciting as mine I am running some small parts on my Hardinge--its not so bad though 1 bar of material runs for a hour or so.
Dont have too much fun with the Jack Have a safe and Happy New Year Terry Have a safe an ----- Original Message ----- From: gene heskett <ghesk...@wdtv.com> To: emc-users@lists.sourceforge.net Cc: Sent: Saturday, December 31, 2011 1:21 PM Subject: Re: [Emc-users] Possible bug in G41-42 stuffs? On Saturday, December 31, 2011 01:48:48 PM Terry Christophersen did opine: > .125dia tool cutting a .230dia ID will leave you .0525 move > if you are starting in the center of the hole and moving to the edge This is I believe the crux of the problem. This code generator does not start at the center, but pre-places the bit at the +x starting position, then issues about 15 to 20 lines of code to cut short segments of the circle, using g2 moves. So, according to the backtrace anyway, I see a slight 'hook' in the trace (when it actually gets that far) as it starts the cut, then errors because its gouging. > I dont know if you are saying that cuttercomp is not working correctly > but I have used it for this application and it works as I think it > should. So have I Terry, but this is a fresh emc release as I'm on 10.04 and synaptic is setup to keep me up to the latest release, 2.4.7-11-g7a74494 as of a couple days ago. So I am wondering if I've found a regression. My point is, that there are moves ahead of the g2 moves that it could use to apply this cutter compensation, but it apparently waits until a g2 move is commanded before it gets applied. And IMO that is WRONG. It isn't helped a bit (in my ancient mind) that the descriptions for the G41-G42 commands make no mention of "dig cut" or "climb cut", just left or right. I could understand the concept a lot easier if it were to deal with it in dig or climb terms. Here, its all dig, it drops the bit in, and the end result is a full clockwise circle move with the bit, starting and ending at the 3 oclock position. So if I want to use this code to just isolate the screws, I'll have to forget G41 entirely, and put in the engraving bit & just dig the line a thou or so deep. That will work to isolate the mounting screws, but I had visions of setting the area inside the circle down 15 thou or so because 1/4" screws are not quite as long as need be for the end of the screw to come flush with the nut. So I may as well take the code that bored the dozen holes and write a new subroutine to do this. Its amazing the stuff we put up with at the feet of the "do it with a computer" god. Anyway, its new years eve and I intend to have this stage done by the time we grab some snack stuff out of the fridge & go down the street to the neighbors for watching the ball fall or whatever. And debating on whether I take a half gallon of black label Jack D. that's about 10 yo now & still has a seal on it along. I like it, but being diabetic, it isn't good for me, so its definitely just a sip now and then. So I'll settle for my daily ration of a couple of ultra-lites I guess. I see your other 2 replies, they may not need an answer but I didn't check to the bottom of them. This list seems to be gradually becoming a top posting list, yeeuuch. Thanks Terry. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> lp1 on fire -- One of the more obfuscated kernel messages ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
