| Symptom | Likely Cause | Solution | |---------|--------------|----------| | Homing fails, probe does not deploy | Wrong probe type in firmware | Recompile with Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN disabled | | Touchscreen shows no response | Firmware mismatch between mainboard and screen | Flash both mainboard and DWIN firmware | | "TMC CONNECTION ERROR" | UART pins not configured | Update to post-2023 firmware, or manually define in Configuration_adv.h | | Thermal runaway after 10 min | PID values incorrect | Run M303 E0 C8 S210 U1 , then M500 | | Extruder steps/mm wrong (default 140?) | Old firmware used 400 steps | Set M92 E140 (for T3’s standard extruder gear ratio) |
// Stock display #define CR10_STOCKDISPLAY // For standard LCD sunlu t3 firmware
If you have searched for you have likely hit one of three walls: your printer is behaving erratically, you want to add a new upgrade (like a BLTouch or a filament sensor), or you are simply trying to understand why your prints are failing mid-way. | Symptom | Likely Cause | Solution |
// Probe #define Z_SAFE_HOMING #define Z_MIN_PROBE_ENDSTOP #define Z_MIN_PROBE_PIN PC4 // inductive sensor Auto Bed Leveling (ABL): Supports a
. Analysis of the source code shows this mode primarily overrides standard acceleration and speed limits in the configuration rather than implementing advanced algorithms like Input Shaping. Auto Bed Leveling (ABL): Supports a
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