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« on: July 19, 2013, 09:48:10 AM »
Long ago I tired the spindle load to monitor feedrate. It worked OK. Simply looked at spindle rpm VS requested RPM and IF it dropped beyond a certain percentage I adjusted the SSO to allow the spindle to catch up. I brought the VFD signal in with Modbus. Also built in a deadband to keep the SSO from constantly adjusting the feedrate.
BUT the end results it did not help anything IF you did your part with programing.
Might be useful to LOAD your machine to MAX the machine capacity BUT that does not always work out well UNLESS you are using a very expensive CAM to create Constant Chiploads as most manual or low end CAM programming does not create a constant load strategy and the actual chip load is all over the place.
Just a thought, (;-)TP