Il giorno mar, 01/05/2012 alle 17.02 +0300, Viesturs Lācis ha scritto: > 2012/5/1 Spiderdab <77...@tiscali.it>: > > Il giorno mar, 01/05/2012 alle 15.56 +0300, Viesturs Lācis ha scritto: > >> 2012/5/1 Spiderdab <77...@tiscali.it>: > >> > Il giorno lun, 30/04/2012 alle 19.55 -0500, sam sokolik ha scritto: > >> >> http://linuxcnc.org/docs/2.5/html/gcode/gcode.html#_g5_2_g5_3_nurbs_block_a_id_sec_g5_2_g5_3_nurbs_a > >> >> > >> >> Sounds like testing would be good > >> >> > >> > No, Yi-shin was talking about three-dimensional nurbs. > >> > I'm interested too in trying that branch, but sincerely i don't > >> > understand how to pass nurbs to G-Code. > >> > If anyone knows, please suggest! > >> > >> Rhino is the only drawing/designing application I know of that works > >> with Nurbs. With some add-on scripts it will output g-code. > >> The problem is that I downloaded it just for my own testing and tried > >> to get some g-code out of it, but the success was nice and round > >> "zero". > >> There are some scripts available for download from Rhino website, > >> actually there is one also uploaded in wiki: > >> http://wiki.linuxcnc.org/uploads/Nurbs2Ngc.rvb > >> But I do not understand, what am I supposed to do with that. > >> > >> See http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NURBS for more details. > >> > >> Viesturs > > > > Yes, but if i'm right, you're still talking about 2D nurbs. > > Yes, You are right, the example I am showing, is 2D Nurbs, but that > does not matter - add Z coordinate for that to be 3D Nurb. The math > stays the same. > > AFAIK (correct me, please on this one, if I am wrong) the only > difference regarding g-code between the existing implementation and > araisrobo branch is that Yishin used G6.2 / G6.3 commands instead of > G5.2 / G5.3 > > Viesturs So, what a script should do is to take the Nurbs curves datas, and transform to G6.2 /G6.3 format. (this is just to take a nurb path, and make LinuxCNC reproduce that, regardless of tool, feedrate changes..) What is in my wonder now, is to do a script running into Blender. Since Blender is multiplatform, open source and uses python scripts, i think that would be the best for working side-by-side with LinuxCNC. Also (but i still don't know..) there should be a lot of material on-line on how to write scripts for Blender.
Maybe we could start together a complete (or a set of) CAM solution working in Blender? there are already two working scripts if i'm right. Davide. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
