Thanks for the look. I am setting up a diy chip wash system to run during roughing to prevent chip build up on way covers and corners. I was able to wire it to run on the M181 command but of course i cant turn it off with out having to reset out of the program. I would like to link it to the air through spindle M339 code or a separate code that can be turned on and off during the program. Any help would be greatly appreciated. I'm pretty green at this stuff. Can I create a macro? IDK Thanks again