[email protected] wrote: >> Or maybe a Sherline or MaxNC. >> > > I feel sure I am wrong but from reading this mailing list I get the > impression that servo drive is superior to steppers > By superior I mean more accurate > Has anyone outfitted a Sherline with servos > I've done a Taig. Servos are not necessarily more accurate, but the positioning is PROVABLE, meaning that the encoders can be fed back to the computer for continuous measurement. So, you can graph the error at various speeds and during acceleration, and then KNOW what the following error is. With steppers, there is very little following error (they lose sync if error exceeds half a full-step), but there are delays in the stepper drive and resonances that can worsen accuracy. And, of course, the computer never knows when a stepper loses a step or stalls, and blindly continues cutting the part wrong. But, then I'm an avowed servo bigot.
Jon ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
