Positive temperature compensation (PTC) for MPC#27911
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thinkyhead merged 5 commits intoMarlinFirmware:bugfix-2.1.xfrom Jun 14, 2025
Merged
Positive temperature compensation (PTC) for MPC#27911thinkyhead merged 5 commits intoMarlinFirmware:bugfix-2.1.xfrom
thinkyhead merged 5 commits intoMarlinFirmware:bugfix-2.1.xfrom
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Keep in mind that the plan is to refactor EEPROM settings to localize the data storage, handling, init, reset, and sanity-checking within each feature. If possible, put all MPC data that gets stored to EEPROM into a structure in the header and work off of that. The more complete refactor will have all EEPROM data structures inherit from a yet-to-be-written class that will make it easier for features to init/read/write stuff in EEPROM independent of one another. We'll work out all the details in #27145. |
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Followup to MarlinFirmware#27911
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Description
MPC (model predictive control) for the hotend does not always work well with PTC hotend heaters. This PR adds some logic for MPC to adjust its power levels for PTC hotends and also forces use of the differential method of tuning when PTC hotends exist.
Requirements
PTC hotend.
Benefits
Makes MPC more widely available.
Configurations
Enable
MPC_PTCin Configuration.h.Related Issues
#27223