--mstpp
<seconds>Set a per-plate wall-clock ceiling in seconds; if any plate's combined slice-and-export time exceeds it, the process exits immediately with code -58 and remaining plates are skipped.
Details
--mstpp <seconds> sets a per-plate wall-clock ceiling on the slicing operation. After each plate finishes -- including both the slicing pass and the G-code export -- the slicer compares elapsed milliseconds against the limit (the supplied value multiplied by 1000). If the ceiling is breached, slicing stops immediately: the result for the over-limit plate is written to the output JSON, the process records exit code -58, and the run terminates. Remaining plates are never attempted.
The default value is 300 (five minutes per plate). Passing 0 disables the check entirely; any non-zero integer enables it. The check is strictly post-plate: it fires only after a plate's slice completes, so there is no mid-plate interrupt. A plate that finishes at 299 seconds passes; one that finishes at 301 seconds exits the process.
The measured interval spans from just before the slicer begins working on a plate through the end of that plate's G-code export. It is wall-clock time, not CPU time, so a heavily loaded host will hit the ceiling sooner than an idle one. The flag is independent of --no-check: --no-check relaxes validity errors; --mstpp is a hard timeout that --no-check does not suppress.
Watch out for
- ▲ The default is 300 seconds -- the check is active even without an explicit flag. Pass `0` to disable it if your pipeline manages timeouts externally.
- ▲ The exit happens after the over-limit plate finishes, not during it. A plate that takes twice the limit will still run to completion before the process exits; the limit cannot preempt a plate mid-slice.
- ▲ The time window includes G-code export, not just mesh slicing. On large plates the export phase can itself consume several seconds.
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