BRIAN GLACKIN wrote: > I may pick up a set of linear scales which were part of a DRO for a milling > machine. > > The DRO box was fried but the scales are reportedly still working. If I get > these scales, will I be able to hook them up using one of the available > boards (mesa or pico)? I have a 13.5X40 lathe I am considering using these > for. > Make sure the scales are digital output, not analog. Make sure their basic resolution is acceptable to you. There are some scales that used interpolation to increase the resolution, but those will be analog-output, of course.
A .0005" scale may not perform well in a servo application, you probably want a higher resolution one. Also, you can't use linear encoders in a servo positioning system where there is much backlash. .001" might be tolerable, much more than that makes for horrible vibration and servo hunting. Jon ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
