Disconnect printer from AC using a command and a low voltage relay

Bambu Lab P1 Series User Mods
1

Does anyone know if there are ANY contact points (prefer 5v) that go either HIGH or LOW when print is finished ?
Want to use a small relay to disconnect the printer from the AC so it does not stay connected to the CPP all the time

2

Wait till the timelapse kit is released in 4 days and use that.

3

timelapse kit ?
Whats that ?

4

https://www.kickstarter.com/projects/makerworld/cyberbrick-beyond-bricks/posts/4338212