What I was trying to do was route a PCB that would leave a foil path .090 wide and 1.959 long with a .030 ball nose end mill. (measurements adjusted to compensate for width of the mill end) What I should have been doing is routing a rectangle box. I will try the Y0 the next time I am on the machine. So the commands for the box would be:
G1 Y1.959 F4 (G20 Already part of the "subset") X0.120 (NEED THE 0 BEFORE THE .120?) Y0 X0 And that would put me where I started. Thanks, John John Thornton <[EMAIL PROTECTED]> wrote : > On 21 Oct 2008 at 6:38, [EMAIL PROTECTED] > wrote: > > > Jon, > > Thanks for the information on the G code. If you have been "reading > > the mail" you know I > > am just jetting started in LINUX / EMC2. So stand by for some read new > > guy dumb questions. > > Everyone was/is a newbee at one time that's why we try and get you over the > hump > as most of us remember the climb up we took... > > > I was in AXIS, MDI mode playing with the G Code. I set the inch > > measurement first and only once (G20) and then moved on the Y axis > > using G1 Y+1.959F4, and that worked great. > > I them moved on the x axis with G1 X+.120F4 and that worked great. > > But the next movement did not work out. I entered G1 Y-1.959F4. The > > tool moved in the right direction ok, but did not stop where it was > > supposed to. It kept on going. I had to ESTOP the machine. So where > > was my mistake? > > My guess is your mistake was thinking that it would move the opposite > direction > > 1.959 but what you got was a move "to" -1.959 which is a distance of 3.190 > from > > 1.959. > > Once you set a feed rate you don't have to set it again until you want change > it. The > same is true for G1. Also the + is not needed. > > For example you could do it like this: > > G1 Y1.959 F4 G20 > X0.120 (G1 is still in force) > Y0 ( the move back to where you started) > > What you learned was the difference between absolute and incremental modes. > > http://www.linuxcnc.org/docview/html//gcode_main.html#sub:G90,-G91:-Set > > Otherwise you have the scaling wrong on the Y axis... > > John > > > > > John > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
