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dave On Apr 19, 2007, at 7:54 PM, Len Shelton wrote: > I cannot find a link to synergy, anyone who can help? > >> Len > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Dave > Engvall > Sent: Tuesday, April 17, 2007 11:49 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Foam Cutter > > > On Apr 17, 2007, at 9:33 PM, Steve Stallings wrote: > >> OK, replying to self based on discussions on IRC.... >> >> The code show was for wire EDM which is a special case >> involving mechanically stacked axes. If the secondary >> axes sit still while the primary ones move, then the >> secondary actually moves in the same arc as the >> primary. This appears to be what is shown in the >> screenshot. >> >> Unfortunately, this is not a useful solution for foam >> cutters who wish to cut airfoils or conical sections >> using machines with two independent sets of axes. > > If you are stuck with cutting with the axes parallel to the root then > opps is right. > However, if you can cut longitudinal to the wing; normally the cross- > section will a certain foil (NACA xxxx ) and all > you have to do it taper in two directions. At least that is how I > visualize it. > > Dave > >> >> Oops..... >> >> Steve Stallings >> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] Behalf Of Steve >>> Stallings >>> Sent: Tuesday, April 17, 2007 11:48 PM >>> To: Enhanced Machine Controller (EMC) >>> Subject: Re: [Emc-users] Foam Cutter >>> >>> >>> Well, open mouth, insert foot. Dave Engvall has sent me >>> some sample code generated by Synergy along with a >>> screen image of the target shape. It demonstrates a >>> flaw in my logic. His G-code and my response quoted below. >>> I have attempted to insert spaces to enhance readability. >>> My guess is that Q and R are the 3rd and 4th axis. >>> >>> -------------------------------------------------- >>> Dave's screen capture can be see here: >>> >>> http://www.metalworking.net/4-axis-wire.png >>> >>> --------------------------------------------------- >>> the generated code with spaces added for readability >>> --------------------------------------------------- >>> N001 G01 X+000000 Y-034925 >>> : 002D02S02T02Q-100000 G43 >>> N003 G01 X+095250 Q-100000 R+050000 G42 >>> N004 G01 Y+009525 G40 >>> N005 G01 G44 >>> N006 G02 X+006350 Y-006350 I+000000 J-006350 Q+000000 G41 >>> N007 G01 Y-088900 Q-050000 R+100000 G42 >>> N008 G02 X-006350 Y-006350 I-006350 J+000000 Q+000000G41 >>> N009 G01 X-040004 Q-100000 R+179083 G42 >>> N010 G02 X-005967 Y+004178 I+000000 J+006350 Q+000000G41 >>> N011 G01 X-013927 Y+038266 Q-200000 R+043860 G42 >>> N012 G03 X-011934 Y+008356 I-011934 J-004344 Q+000000G41 >>> N013 G01 X-046836 Q-030000 R-202164 G42 >>> N014 G03 X-011934 Y-008356 I+000000 J-012700 Q+000000G41 >>> N015 G01 X-013927 Y-038266 Q-199998 R+257309 G42 >>> N016 G02 X-005967 Y-004178 I-005967 J+002172 Q+000000G41 >>> N017 G01 X-040004 Q-300000 R+050000 G42 >>> N018 G02 X-006350 Y+006350 I+000000 J+006350 Q+000000G41 >>> N019 G01 Y+088900 Q-050000 R+100000 G42 >>> N020 G02 X+006350 Y+006350 I+006350 J+000000 Q+000000G41 >>> N021 G01 X+095250 Q-100000 R+000000 G42 >>> N022 X+025400 G44 >>> N023 G01Y-009525 G40 M21 >>> N024 G45 M21 >>> N025 M02 >>> --------------------------------------------------- >>> my response to Dave >>> --------------------------------------------------- >>> Dave, >>> >>> Indeed it does help. While I do not fully understand the >>> code it generated, it does make me realize one fatal >>> flaw in my previous statement about EMC handling >>> the case for parallel axis sets. That is the case where >>> each set of axes must interpolate, independently but >>> simultaneously, an arc. While I do not know how the code >>> specifies both of the simultaneous arcs, it must be there >>> based on the model that you show. >>> >>> Still staring at that strange G-code..... >>> >>> Regards, >>> Steve >>> ----------------------------------------------------------- >>> >>>> -----Original Message----- >>>> From: [EMAIL PROTECTED] >>>> [mailto:[EMAIL PROTECTED] Behalf Of Steve >>>> Stallings >>>> Sent: Tuesday, April 17, 2007 9:53 PM >>>> To: Enhanced Machine Controller (EMC) >>>> Subject: Re: [Emc-users] Foam Cutter >>>> >>>> >>>> Me thinks there is a disconnect here somewhere...... >>>> >>>> EMC can handle 4 or even 6 axis coordinated motion just fine. >>>> It does not care if there are 2 parallel X axes and 2 parallel >>>> Y axes. If the code can be generated with 4 axis coordinates >>>> for each move command EMC can process it. Yes there may be >>>> some naming convention issues for the axes, but that can be >>>> overcome. >>>> >>>> The issue is that the foam cutting community is locked into >>>> design/CAM programs that insist on also being the machine >>>> controller so there is no way to get the G code in the first >>>> place. >>>> >>>> BobCAD and Vector both offer 4 axis wire EDM support. Could >>>> someone look into generating some output to see what it >>>> actually looks like? >>>> >>>> Regards, >>>> Steve Stallings >>>> >>> >>> -------------------------------------------------------------------- >>> - >>> ---- >>> This SF.net email is sponsored by DB2 Express >>> Download DB2 Express C - the FREE version of DB2 express and take >>> control of your XML. No limits. Just data. Click to get it now. >>> http://sourceforge.net/powerbar/db2/ >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> >> --------------------------------------------------------------------- >> - >> --- >> This SF.net email is sponsored by DB2 Express >> Download DB2 Express C - the FREE version of DB2 express and take >> control of your XML. No limits. Just data. Click to get it now. >> http://sourceforge.net/powerbar/db2/ >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. 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