Peter C. Wallace wrote: >>EMC2 can do this, but I don't know if anyone has yet. The PID component >>now outputs error on a pin, and also outputs a "saturated" signal when >>output has been too high for a period of time. These can be used, along >>with adaptive feed override, to reduce the overall feed rate. >> >>- Steve >> >> >Making such a system stable is not something I would like to try however... > > Indeed. I imagine you'd need pretty low frequency filters on the error, and only allow AFO changes after some saturated period. Of course, that may make the technique ineffective, since responding to impending error conditions probably needs to be pretty quick. It also won't help for spindle-synchronized moves (unless you also modify the spindle speed by the AFO factor).
- Steve ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
