Would a read ahead of 1000 lines be more time consuming than the NURB calculation? My post has the ability to restrict output if a move is less than a certain distance. A .001 minimum and a 1000 block look ahead would yield a 1 inch minimum distance to slow down as necessary. On Apr 20, 2012 12:28 PM, "Jon Elson" <el...@pico-systems.com> wrote:
> Stuart Stevenson wrote: > > Doesn't even G02/G03 result in a series of very small linear moves sent > to > > the servo motors? Wouldn't a NURB conversion do the same thing > Yes, in a way. But, the G02/G03 is known to be a single move, so there > is no velocity > change until the end of that move. NURBS doesn't really solve this > problem, it just > condenses the description of the surface, and allows a program to fairly > simply > determine the accelerations that might be needed to traverse it. > > The problem with general G-code is each block tells you nothing about > any other > block. So, you have to read arbitrarily far ahead to know if there are > any sudden > changes in velocity coming up. > > Jon > > > ------------------------------------------------------------------------------ > For Developers, A Lot Can Happen In A Second. > Boundary is the first to Know...and Tell You. > Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! > http://p.sf.net/sfu/Boundary-d2dvs2 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
