I followed the link out, too, and found it dead. By snipping the ~djones in it. His index page took me to: http://www.cs.uiowa.edu/~jones/step/ My own interest in stepping motors has to do with building a rotating platform for making Quicktime movies of objects. I figure I can use an old salvaged mainframe hard drive spindle for the axis, and a stepper motor to step the increments, using a geared-down belt and pulley system, perhaps. It doesn't have to be really accurate. It would be nice to have it all controlled automatically for a shoot, including triggering the camera, with appropriate delays for things to happen in. I don't know if I'll get around to doing the code on that; probably either do it manually, or use GUI Applescript. If manual, I don't even need a stepper motor, do I? I'm not a kid, I'm an old f**t, with fewer braincells not enough time and not enough background. -Jim ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mailto:heavy@ctesc.net * Jim Weiler * http://pages.tstar.net/~heavy http://home.talkcity.com/MigrationPath/blackbeardtcc/ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^