I'm doing some volunteer work for a local hackerspace (sector67.org). We recently completed conversion of two anilam knee mills to LinuxCNC, including adding a 4th rotary stepper axis for one of the mills. We now want to do some simple plunge EDM'ing, and ideally would reuse the LinuxCNC z axis control.
Although I could make a custom control loop, I'm thinking that a simple conditional/looping gcode program, looking at the value of an analog input (m66) to determine whether to move up, stay in place or move down should get the job done in the regular axis GUI (with perhaps the addition of a pyvcp panel for a simple status). My question is about this analog input. I used A Mesa 5i23 card with servo and isolated I/O daughter cards, so I have ample digital I/O. Has anyone used a circuit with a voltage to frequency converter (LM331 or similar) to create a digital pulse train read in linuxCNC as an encoder I presume and then hooked that up to the analog m66 inputs? Looking for advice on that specific problem or other ideas on solving the overall problem. Thanks much, Scott ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
