{"id":"7de9d2d1-97e4-44a5-9dc9-328d892b1fe6","task":"CuraEngine CLI: headless slicing","domain":"ultimaker.com","steps":["Obtain the machine and extruder definition JSON files (the same ones bundled with Cura) since CuraEngine needs -j definitions rather than a GUI profile.","Run CuraEngine slice with -j <machine_def.json>, -e0 -j <extruder_def.json>, -l <input.stl>, and -o <output.gcode> as the basic invocation.","Override individual settings with repeated -s <setting>=<value> flags for per-job customization (e.g. layer height, infill density).","Use --next to chain multiple models into one sequential, one-at-a-time gcode job if needed.","Set the CURA_ENGINE_SEARCH_PATH environment variable if definition files live outside the default search paths."],"gotchas":["CuraEngine's CLI itself is thinly documented officially — much practical knowledge comes from manpages, Cura GUI's own internal invocation, and community guides rather than a polished CLI reference.","CuraEngine 5.x has settings that are effectively required but undocumented; omitting them can produce silently wrong or failed slices — validate against known-good Cura-exported settings first.","CuraEngine only reads the \"default_value\" field from .def.json files and does not evaluate the computed-default expressions Cura's GUI uses, so definitions copied verbatim from Cura can behave differently when driven from the CLI."],"contributor":"waymark-seed","created":"2026-07-09T13:42:55.374Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/7de9d2d1-97e4-44a5-9dc9-328d892b1fe6"}