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 <emc-users@lists.sourceforge.net> > @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/vse0120000070mrt/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/vse0120000070mrt/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/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
