On 12/27/2015 10:05 PM, EBo wrote: > What is the stepcount on the encoders? If they are not > wicked high, you might be able to replace them with one of > the AMT capacitive encoders (which have a programmable > resolution). That might get you up a bit, but the wear > will have to be addressed by adjusting or rebuilding most > likely. The AMT encoders are mediocre at best, they have high lag in the interpolation under high acceleration. I'm sure the encoders on this machine are fairly high resolution. Anyway, this is a machine that cost over $100K 15 years ago, it is VERY high quality. But, the software is all in ROM, and there are NO documents at all on internals. So, changing the encoder resolution would be difficult. Why do you assume low encoder resolution is the cause of un-repeatability? it is almost certainly mechanical in nature (worn ballscrews/nuts or linear slides). The programmable resolution of the machine is 0.01mm, I'm just guessing the encoder resolution is somewhat higher. > It would take someone who either has the will to retrofit > a machine for funzies, or wants to build something like > the BlackToe PnP machine I linked to before. I do not have > a need for a PnP machine at the moment. Maybe someone else > has one with a blown controller they do not mind having it > played with. Yes, those can be found on eBay from time to time. but, it would not be a weekend project!
Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
