Re: [Emc-users] Fw: Request for Fonts
Ah. How right you are! Thanks, Jim C ben lipkowitz <[EMAIL PROTECTED] r.org> To Sent by: "Enhanced Machine Controller (EMC)" emc-users-bounces @lists.sourceforg cc e.net Subject Re: [Emc-users] Fw: Request for 02/15/2008 02:03 Fonts PM Please respond to "Enhanced Machine Controller (EMC)" <[EMAIL PROTECTED] sourceforge.net> Actually, if you flip the arcs over so they go the right way it turns out pretty good. Only the characters '[EMAIL PROTECTED]' have any problems, at least on the two fonts I examined so far (scripts.cxf and normal.cxf) http://fennetic.net/pub/irc/cxf2g-scripts.png AXIS is the fancy 3d GUI that comes with emc2. It has a toolpath preview and you can execute/load/preview scripts that print g-code just by pressing the reload button. Handy for developing stuff like this. If you know C and regular expressions you'll find my script familiar enough - if you have any questions about it I'd be happy to answer them. Congratulations on getting your machine running. On Fri, 15 Feb 2008, [EMAIL PROTECTED] wrote: > There have been several things I have noticed in the CXF files. > > - All arcs in the fonts are done with counter clockwise moves (G3). > > - Some of the radius are large (parenthesis has a 13 unit radius). > > - There does not seem to be much thought into optimizing the commands > from a motion standpoint. > > For instance, the number '0' is ten different arcs and they are not in > any particular order. My code does not attempt to optimize anything, I > just convert each of the commands to G-code and leave it be. The result > is a lot of unnecessary Z axis moves that could be removed. That's > something I will deal with later on. > > I am pleased with the results. The fact that I loaded EMC on a cheap PC > and can run stepper motors via the parallel port is amazing. My formal > education included automatic control systems (30+ years ago) and I > understand enough about what is being done to be very impressed. > During my initial setup, I discovered my motor drives were taking almost > a millisecond to make a single motor step yet EMC was sending step > commands out much faster (10 micro-seconds). That caused me to change > to simple motor drivers and let EMC handle the actual motor phasing. > That did the trick for me. It all works and now I have a really cool > machine that does what I need. > > I understand the limitations of steppers vs servo systems and went with > steppers just so I didn't have to deal with encoders. It's a little > slower but much more simple. I like to keep it simple. It's magic to > watch the machine run. > > I am not familiar with python. I have no idea what AXIS is either. So > for now, I have to stick with C. I need to take a look at python just > to learn about it. > > I am new to this group and appreciate all the support. > Thanks to everyone! > > Jim Combs - Lexington Ky > > > > > > ben lipkowitz > <[EMAIL PROTECTED] > r.org> To > Sent by: "Enhanced Machine Controller (EMC)" > emc-users-bounces > @lists.sourceforg cc > e.net > Subject > Re: [Emc-users] Fw: Request for > 02/14/2008 09:12 Fonts > PM > > > Please respond to > "Enhanced Machine > Controller (EMC)" > <[EMAIL PROTECTED] > sourceforge.net> > > > > > > Inspired by Jim's example I decided to make a python script that conv
Re: [Emc-users] Fw: Request for Fonts
Actually, if you flip the arcs over so they go the right way it turns out pretty good. Only the characters '[EMAIL PROTECTED]' have any problems, at least on the two fonts I examined so far (scripts.cxf and normal.cxf) http://fennetic.net/pub/irc/cxf2g-scripts.png AXIS is the fancy 3d GUI that comes with emc2. It has a toolpath preview and you can execute/load/preview scripts that print g-code just by pressing the reload button. Handy for developing stuff like this. If you know C and regular expressions you'll find my script familiar enough - if you have any questions about it I'd be happy to answer them. Congratulations on getting your machine running. On Fri, 15 Feb 2008, [EMAIL PROTECTED] wrote: > There have been several things I have noticed in the CXF files. > > - All arcs in the fonts are done with counter clockwise moves (G3). > > - Some of the radius are large (parenthesis has a 13 unit radius). > > - There does not seem to be much thought into optimizing the commands > from a motion standpoint. > > For instance, the number '0' is ten different arcs and they are not in > any particular order. My code does not attempt to optimize anything, I > just convert each of the commands to G-code and leave it be. The result > is a lot of unnecessary Z axis moves that could be removed. That's > something I will deal with later on. > > I am pleased with the results. The fact that I loaded EMC on a cheap PC > and can run stepper motors via the parallel port is amazing. My formal > education included automatic control systems (30+ years ago) and I > understand enough about what is being done to be very impressed. > During my initial setup, I discovered my motor drives were taking almost > a millisecond to make a single motor step yet EMC was sending step > commands out much faster (10 micro-seconds). That caused me to change > to simple motor drivers and let EMC handle the actual motor phasing. > That did the trick for me. It all works and now I have a really cool > machine that does what I need. > > I understand the limitations of steppers vs servo systems and went with > steppers just so I didn't have to deal with encoders. It's a little > slower but much more simple. I like to keep it simple. It's magic to > watch the machine run. > > I am not familiar with python. I have no idea what AXIS is either. So > for now, I have to stick with C. I need to take a look at python just > to learn about it. > > I am new to this group and appreciate all the support. > Thanks to everyone! > > Jim Combs - Lexington Ky > > > > > > ben lipkowitz > <[EMAIL PROTECTED] > r.org> To > Sent by: "Enhanced Machine Controller (EMC)" > emc-users-bounces > @lists.sourceforg cc > e.net > Subject > Re: [Emc-users] Fw: Request for > 02/14/2008 09:12 Fonts > PM > > > Please respond to > "Enhanced Machine > Controller (EMC)" > <[EMAIL PROTECTED] > sourceforge.net> > > > > > > Inspired by Jim's example I decided to make a python script that converts > cxf to g-code on the fly: > > http://fennetic.net/pub/irc/cxf2g.py > > http://fennetic.net/pub/irc/cxf2g.png > > It uses g2 and g3 for arcs. The interface is non-existent right now; just > edit the script and open it with AXIS. > > -fenn > > On Thu, 14 Feb 2008, [EMAIL PROTECTED] wrote: >> >> I converted normal.cxf to normal.ngc >> >> I chose to make the arcs using a series of line segments (G1) using 5 >> degree units vs using the G3 >> command. >> >> Here is a link to the file. >> >> http://wiki.linuxcnc.org/uploads/normal.ngc >> >> I will convert the rest of the fonts tonight. >> >> Jim Combs - Lexington, Ky > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > - This SF.net email is sponsored by: Microsoft Defy all challenges. Micros
Re: [Emc-users] Fw: Request for Fonts
There have been several things I have noticed in the CXF files. - All arcs in the fonts are done with counter clockwise moves (G3). - Some of the radius are large (parenthesis has a 13 unit radius). - There does not seem to be much thought into optimizing the commands from a motion standpoint. For instance, the number '0' is ten different arcs and they are not in any particular order. My code does not attempt to optimize anything, I just convert each of the commands to G-code and leave it be. The result is a lot of unnecessary Z axis moves that could be removed. That's something I will deal with later on. I am pleased with the results. The fact that I loaded EMC on a cheap PC and can run stepper motors via the parallel port is amazing. My formal education included automatic control systems (30+ years ago) and I understand enough about what is being done to be very impressed. During my initial setup, I discovered my motor drives were taking almost a millisecond to make a single motor step yet EMC was sending step commands out much faster (10 micro-seconds). That caused me to change to simple motor drivers and let EMC handle the actual motor phasing. That did the trick for me. It all works and now I have a really cool machine that does what I need. I understand the limitations of steppers vs servo systems and went with steppers just so I didn't have to deal with encoders. It's a little slower but much more simple. I like to keep it simple. It's magic to watch the machine run. I am not familiar with python. I have no idea what AXIS is either. So for now, I have to stick with C. I need to take a look at python just to learn about it. I am new to this group and appreciate all the support. Thanks to everyone! Jim Combs - Lexington Ky ben lipkowitz <[EMAIL PROTECTED] r.org> To Sent by: "Enhanced Machine Controller (EMC)" emc-users-bounces @lists.sourceforg cc e.net Subject Re: [Emc-users] Fw: Request for 02/14/2008 09:12 Fonts PM Please respond to "Enhanced Machine Controller (EMC)" <[EMAIL PROTECTED] sourceforge.net> Inspired by Jim's example I decided to make a python script that converts cxf to g-code on the fly: http://fennetic.net/pub/irc/cxf2g.py http://fennetic.net/pub/irc/cxf2g.png It uses g2 and g3 for arcs. The interface is non-existent right now; just edit the script and open it with AXIS. -fenn On Thu, 14 Feb 2008, [EMAIL PROTECTED] wrote: > > I converted normal.cxf to normal.ngc > > I chose to make the arcs using a series of line segments (G1) using 5 > degree units vs using the G3 > command. > > Here is a link to the file. > > http://wiki.linuxcnc.org/uploads/normal.ngc > > I will convert the rest of the fonts tonight. > > Jim Combs - Lexington, Ky - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fw: Request for Fonts
On Thursday 14 February 2008, ben lipkowitz wrote: >On Thu, 14 Feb 2008, Gene Heskett wrote: >> What program saves in .cxf format, Ben? > >qcad comes with several .cxf fonts: >http://packages.ubuntu.com/cgi-bin/search_contents.pl?searchmode=filelist&wo >rd=qcad&version=gutsy&arch=i386 > >i dont know how they were made originally. there should be more >information on the qcad yahoo group about the history of the project. installed it, but there is a missing dep, /usr/bin/assistant is on the missing list here on an F8 machine. Therefore no help manual according to the error message. :-(> But guess what I just found on another screen? Firefox, running , so all is not lost. Thanks again Ben. -- 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) The co-locator cannot verify the frame-relay gateway to the ISDN server. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fw: Request for Fonts
On Thursday 14 February 2008, ben lipkowitz wrote: >On Thu, 14 Feb 2008, Gene Heskett wrote: >> What program saves in .cxf format, Ben? > >qcad comes with several .cxf fonts: >http://packages.ubuntu.com/cgi-bin/search_contents.pl?searchmode=filelist&wo >rd=qcad&version=gutsy&arch=i386 > >i dont know how they were made originally. there should be more >information on the qcad yahoo group about the history of the project. Good, I have it dl'ing now. I looked at qcad a while back, but couldn't seem to get my ancient wet ram around it. I'll give it another shot. Thanks Ben. -- 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) No hardware designer should be allowed to produce any piece of hardware until three software guys have signed off for it. -- Andy Tanenbaum - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fw: Request for Fonts
On Thu, 14 Feb 2008, Gene Heskett wrote: > What program saves in .cxf format, Ben? qcad comes with several .cxf fonts: http://packages.ubuntu.com/cgi-bin/search_contents.pl?searchmode=filelist&word=qcad&version=gutsy&arch=i386 i dont know how they were made originally. there should be more information on the qcad yahoo group about the history of the project. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fw: Request for Fonts
On Thursday 14 February 2008, ben lipkowitz wrote: >Inspired by Jim's example I decided to make a python script that converts >cxf to g-code on the fly: > What program saves in .cxf format, Ben? >http://fennetic.net/pub/irc/cxf2g.py > >http://fennetic.net/pub/irc/cxf2g.png > >It uses g2 and g3 for arcs. The interface is non-existent right now; just >edit the script and open it with AXIS. > > -fenn > >On Thu, 14 Feb 2008, [EMAIL PROTECTED] wrote: >> I converted normal.cxf to normal.ngc >> >> I chose to make the arcs using a series of line segments (G1) using 5 >> degree units vs using the G3 >> command. >> >> Here is a link to the file. >> >> http://wiki.linuxcnc.org/uploads/normal.ngc >> >> I will convert the rest of the fonts tonight. >> >> Jim Combs - Lexington, Ky > >- >This SF.net email is sponsored by: Microsoft >Defy all challenges. Microsoft(R) Visual Studio 2008. >http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ >___ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users -- 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) It is a poor judge who cannot award a prize. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fw: Request for Fonts
Inspired by Jim's example I decided to make a python script that converts cxf to g-code on the fly: http://fennetic.net/pub/irc/cxf2g.py http://fennetic.net/pub/irc/cxf2g.png It uses g2 and g3 for arcs. The interface is non-existent right now; just edit the script and open it with AXIS. -fenn On Thu, 14 Feb 2008, [EMAIL PROTECTED] wrote: > > I converted normal.cxf to normal.ngc > > I chose to make the arcs using a series of line segments (G1) using 5 > degree units vs using the G3 > command. > > Here is a link to the file. > > http://wiki.linuxcnc.org/uploads/normal.ngc > > I will convert the rest of the fonts tonight. > > Jim Combs - Lexington, Ky - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fw: Request for Fonts
I converted normal.cxf to normal.ngc I chose to make the arcs using a series of line segments (G1) using 5 degree units vs using the G3 command. Here is a link to the file. http://wiki.linuxcnc.org/uploads/normal.ngc I will convert the rest of the fonts tonight. Jim Combs - Lexington, Ky - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
