http://www.linuxcnc.org/docview/devel/html//gui_axis.html#r1_11_1
Regards, Alex ----- Original Message ----- From: <kivi...@netikka.fi> To: <emc-users@lists.sourceforge.net> Sent: Wednesday, February 04, 2009 8:40 AM Subject: [Emc-users] How to set A axis to follow XY tangent? > > Hello. > > Im using Axis interface and it seems that filter is the best way to > do this. (I didn't find clear answer from developpers how to do filters > and add > them to UI). > > Now the questions are: > can somebody make a example fileter for XY tangent? > How to add filter to Axis interface? > > Br > Stoneland > > > > Coincidentally there was just a long thread over in "EMC Developers" on > this > very subject. If you have access to it, see the thread "Tangential tool > configuration". > > To summarize, the consensus opinion was to not do this in the kinematics, > but rather through a preprocessor / filter. For G1 moves, calculating > theta > (A) is pretty trivial, for G2 / G3 commands, a rotational axis may be > specified which will move from the current angle to the end angle, > synchronized to the arc specified. See: > http://www.linuxcnc.org/handbook/RS274NGC_3/RS274NGC_33a.html#1002442 > > If you are using the Axis interface, applying a filter is quite simple > (apparently, I have not done it personally). Part of the discussion in EMC > Developers concerned how to do this in a more generic manner so that it > could apply to any UI. > > One more point is that there can be some other considerations which may > need > to be taken into account in the preprocessor. For instance, when using a > knife, there may be a maximum angle between two vectors that may be > achieved > when the knife is in the material. When this angle is exceeded a head > lift, > knife rotation, head drop sequence may need to be inserted. Similarly > there > is the issue of what to do when going through pi in the positive direction > or -pi in the negative direction. > > Regards, > Eric ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
