MarkT:
Perhaps you should tell us some details like which stepper motor,
which stepper motor driver, how they are powered, which library(s)
you are using (your code?)....
Thank you for the quick reply.
I have well over 100 "all sorts" stepper-motors (micro to very large, uni- and bi-polar). I haven't decided on a particular model yet. The same with regards to the library - that will probably depend on the motor(?). Power would be via dedicated regulated (12V) power-supply to motors, 6V regulated p/s to either the Arduino Uno or Mega (I might get a simpler version for this purpose). I would try and adjust the relevant code to include the necessary delays for the on/off relay, and of course, for the "pot/switch movement sensing-function".
I am aware that there are engage/disengage or attach/un-attach functions, but, I was told that they do NOT disconnect power to the stepper-motors, and that is my main issue.
Thanks again, and cheers...
Rolf