That would work too in some cases. You can make a new air nozzle, or potentially make something that slides over it temporarily that is a cylinder. I have used my nozzle for Z touch before, and the laser body was conductive enough. Some people have told me that theirs wasn’t consistently conducting through the nozzle but i haven’t had that problem.
This will work for something with a fixed nozzle like the above shown 15W laser. However, some have a variable position nozzle that you can adjust depending on your needs and how deep in the workpiece you want to set the focal point. So it just depends on your needs. You could also make a new rim for your touchplate that had higher sidewalls that could catch the upper part of the existing air assist nozzle…lots of options.
@Eric , does AVID have any options for the touchplate for a higher sidewall on the two screw-on plates of the touchplate?