I think that you need to calculate the length of an Archimedean spiral to determine the time to move along it. This page provides a general formula for arc length using calculus for spirals expressed in parametric or polar form. https://www.mathsisfun.com/calculus/arc-length.html -----Original Message----- From: gene heskett <ghesk...@shentel.net> Sent: September 15, 2025 11:37 AM To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> Subject: [Emc-users] EDM auto advance Q's
Actually 3 Q's, two of which Peter may be able to answer. 1; in a 7i76D, the 12 volt inputs need a signal of what duration to reliably detect that a signal has occurred? And what is the maximum voltage that can be applied to a 12 volt input? 2; how can I determine the predicted elapsed time for a 10 spiral g2/g3 move which will expand in time as the diameter of the spiral grows? Thanks everybody. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
