How I would do it: Use a trapezoidal screw and a delrin nut.
Allow the nut to float axially in its housing, with a microswitch to detect when it has moved. Normally the head hangs on the nut. When the head touches then the nut slides down in its housing, operating the microswitch. (Use the probe G-code) back off to the required height + the known actuation distance and start the arc. I think I would use a leaf-spring suspension to supply the required angular constraint on the nut. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
