Hi Clint Fascinating. No EMC2 doesn't do that with a stock install or even a simple config change. This seems to me to be more like angling the tool rest on a wood lathe and then using your finger to hold the cutting end of the tool at a fixed distance from the rest.
A non-trivial kinematics would allow you to skew the X in relation to the Z. I don't think ordinary machine "home" is a useful way to think about this. It would require quite a bit of change to the kinematics to allow you to change the angle of the XZ relationship as simply as making a couple of "zero here" button presses. I'm thinking that you'd have to change values in the kins file and recompile for each angle. But then you could compile several of these kinematics files and load the one nearest to the angle you are trying to match. I presume that the reason you'd like an Z0 that is at an angle to the actual path of X is that you have grooves and ridges and frilly stuff along the length of the drum shell. Personally I a lot rather see you handle the part program code in some sort of CAD/CAM or dedicated script routine and leave the definition of the lathe as a lathe. I can imagine drawing up a cross section of the shell in CAD and then simply rotate all of it to the desired angle and press the make gcode button. Not much help. Rayh On Sun, 2008-05-18 at 23:48 -0400, xtra209 wrote: > I'm interested in turning hand drum shells. The shells will be similar > but not exact in the rough form. > > I would like to manually home the headstock end of the lathe to the > diameter and length of the shell then manually home the tailstock end of > the lathe to length and diameter of the shell and use the line between > these two as the X axis. > > As an example... there would be two home points: (I'm making up numbers > here!) one could be X0, Y10 and the other home point could be X24, Y7. > Then I would like the X axis to be a straight line between these two points. > > I could learn to use X, Z coordinates like lathes usually use... > > Anyway, can emc home like this? And if so where can I find more information? > > Am I totally out in the weeds on this one? > > Thanks, > > Clint > > ------------------------------------------------------------------------- > 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
