Greetings list, I getting ready to buy some hardware and setup CNC on a 3in1 machine. I'll be using LCNC with a parallel port and stepper motors.
This is more of a hardware question. For an emergency stop I was planning on using a charge pump and wire the enable signal in series through it and a NC switch. I found one place that sells a BOB and emergency stop that wires the step signals for each axis through separate relays and all are opened when the e-stop switch is hit. The enable signal is not cut. There is a claim that:"A trip instantly stops your stepper motors and puts on the electric motor brakes to stop the axis system in it's tracks". My question: Does stopping the step signal to the controller result in any sort of "braking" from some EMF in the motor that doesn't occur when the enable signal is stopped? Thanks in advance for any replies. -- Raymond Julian Kettle River, MN The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest are the traits of success. And while men admire the quality of the first they love the produce of the second. -John Steinbeck, novelist, Nobel laureate (1902-1968) ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
