After any update, always re-calibrate your Z-offset before your first print to avoid the nozzle crashing into the bed.
: Features like "Jam Detection" and "Power Loss Detection" are known to trigger incorrectly in early versions, causing unnecessary print failures. Limited Customization
: Updates can provide better thermal runaway protection and allow for higher hotend temperatures for specialized filaments.
: With the printer off, insert the card and turn the printer on. The screen will remain blank for several seconds while it updates. 4. Summary Table: Stock vs. Custom Feature Stock Firmware Custom Marlin Hotend Cooling Only when moving Constant when hot Bed Heating PID (Stable) Mesh Points 5x5 (More accurate) Ease of Use High (plug & play) Medium (requires flashing) Risk Moderate (potential bugs) Custom Firmware for SUNLU T3 by Kaot93 - Printables.com sunlu t3 firmware update better
Your firmware is now updated, but you must calibrate it to truly see better results. Run these three essential tests:
SUNLU occasionally releases updates like v3.40, which focuses on language support and LCD refresh rates. You can check for official support on the sunlu 3d Facebook page . Note: If your printer is stable on v3.31, some users suggest staying there, as v3.40 has reported heating sensor bugs for some units.
Before starting, ensure you have the following ready to avoid "bricking" your machine: After any update, always re-calibrate your Z-offset before
Best-in-class input shaping; print speeds well over 150mm/s with pristine quality; edit configuration files instantly via a web browser (Mainsail/Fluidd).
Transitioning to an updated, community-optimized firmware package transforms the machine from a basic entry-level printer into a precision manufacturing tool. 1. Superior Print Quality via Linear Advance
Ensure the firmware file is properly named (usually firmware.bin or Robin_nano.bin , depending on your specific board type). : With the printer off, insert the card
Navigate to the printer menu: . Select Initialize EEPROM (or Reset Factory Defaults).
Here is how the update makes the T3 categorically better.