<snip> > Rather than download/compile, you can install the precompiled package > from the buildbot, which is probably easier: > http://buildbot.linuxcnc.org/ > > Do you have Hall sensors on the motors? > Andy, greetings
Thanks for the suggestion of Buildbot. The motors do have Hall sensors. I thought that I would start "gently" with trapezoidal drive, then close the position loop with the encoders and finally see what happens to performance using sinusoidal. The encoder resolution is so high (effectively 25,000 counts per rev) that it seems there could be lots of traps. The XY stage is obviously from some semiconductor fab. line, made by Newport, very stiff mechanically. It must have been servo controlled originally though I have no original electronics. Finally a really dumb question. The 7i39 has SENSE A0/A1 and SENSE B0/B1 outputs to FPGA board and these signals are on Pins 4/5 of the encoder interfaces. What are they for? Best wishes John Prentice ------------------------------------------------------------------------------ uberSVN's rich system and user administration capabilities and model configuration take the hassle out of deploying and managing Subversion and the tools developers use with it. Learn more about uberSVN and get a free download at: http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
