How to extrude indefinitely while endstop triggered.

[paddy.quigley]

I want to extrude filament at a steady speed while a trigger signal is on, and stop when the trigger signal is off.

The closest I can see to this is by using a M577 wait command to wait until trigger signal is high, before continuing.

so M577 Y S1

Is is possible instead to program to extrude material indefinitely at a fixed speed while the signal is on, and stop only when the signal is off.

Im using a duet 2 board running firmware 3.3 if this is any relevance.

Thanks in advance