Bruce Klawiter wrote: > Jon you may remember back when I was using linear scales I had a problem with > jitter on all axes and once in a while the Z axis? would spike. > What version of PPMC motherboard do you have? Does it have a little SIP resistor pack plugged into sockets at RP1, at the end opposite to the power and DB-25 connector? If it doesn't, then does it have an array of individual resistors at P3? If neither of these, then I can easily understand the problems you are having. The original PPMC was designed to work with the old, slow, 5 V parallel ports on the computers of the day, (note your PPMC boards were purchased in early 2007) and won't work reliably on newer computers with faster, 3.3 V parallel ports.
I had to add a bunch of terminating resistors and make some other adjustments on the motherboard to improve reliability for the newer ports. Jon ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
