In the past I have redrawn prints using polar coordinates to demonstrate a problem with the original print. It is a natural notation for any part with radial placed features or arcs. I do agree that it is likely a little bit of a drift from strict NCL but useful, and as Chris put it, should not induce any errors into the rest of the EMC. If I could add my 2c, it would be that I would like to see the mathematical transformations between the proposed instructions and standard g-codes.
Anyway, looks interesting! Cheers, EBo -- Chris Radek <[email protected]> said: > On Sun, Dec 27, 2009 at 01:11:38PM -0800, Lawrence Glaister wrote: > > > That looks quite useful Chris. The embedded examples show how easy > > several very useful operations are to hand code. Does it belong in > > gcode? good question.... If we had a good cam package to complement emc, > > then it would not be needed in the gcode interpreter. Do you know of > > something similar in other controls? > > Yes, my BOSS8 machine has a polar mode, but it is more limited > than what I propose. For instance you can only specify integer > degrees. > > It's not a machine control, but Autocad lets you specify vectors in > the format @distance<angle. In Autocad it always means 'relative to > here' but in gcode it makes perfect sense to have 'relative to here' > G91 or 'relative to the origin' G90. > > > or is this drifting a little far > > from the basic gcode spec? > > It's sure another drift from NGC but I do not see a way that it > breaks compatibility with old programs. > > > Since I code a lot by hand, I would probably use it if it makes it into > > the releases. > > I think I would use it too. I would spend a little less time with > the calculator when working on round things. > > > cheers > > Thanks for your thoughts. > > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > -- ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
