John, I just worked through this. In Eagle use the gcode ulp. Make sure that the layer in the selection box is the layer you want and set the tool sizes to what you have. The ulp (User Language Program) will then generate the correct gcodes. One thing to note is that all of the dimensions are in mm. I have done this with a relatively simple board and the Backplot looks pretty good. The gcode file will include the traces, the drilling and the board cutout. These are separate sections with pauses for tool changes between them,.
Hope this helps. Frank [EMAIL PROTECTED] wrote: > 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 > ------------------------------------------------------------------------- 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
