pause_print
Pause a print and maintain hotend and bed temperatures with a background keep-alive thread to prevent cooling during long pauses.
Instructions
Pause the currently running print job.
Pausing lifts the nozzle and parks the head.
Heater behaviour during pause varies by firmware:
- Bambu A1 / A1 mini: the firmware drops the **hotend** target
~3-5 minutes into a pause regardless of slicer settings (bed
target survives). An untreated 25-min pause cools the nozzle
from 220°C to ~90°C, which means the resume can't extrude
until you re-heat — and bed adhesion can fail in the meantime.
- Bambu X1/P1 series: typically holds both targets, but a long
idle can still trigger cooldown.
- OctoPrint / Moonraker / Klipper: depends on firmware config;
most hold targets across pause.
To fight this, ``pause_print`` spawns a best-effort daemon thread
that re-asserts the pre-pause hotend + bed targets every 2 minutes
until the printer leaves the PAUSED state (resume, cancel, error,
or manual button press). This is enabled by default.
Args:
keep_temps: When ``True`` (default), capture the pre-pause tool
and bed targets and re-assert them every ~2 minutes via a
background daemon thread. Set ``False`` to skip the
keep-alive (legacy behaviour — printer may cool during long
pauses). The keep-alive thread is idempotent: repeat
pause/resume cycles do not compound threads.
Use ``resume_print()`` to continue from where the print left off.
The keep-alive thread is automatically stopped on resume or cancel.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| keep_temps | No |