Since a custom fan duct caused the heat block on my printer to cool down enough to have a negative impact on PETG printing, I adjusted the auto PID tune aswell as the default PID values.
Also adding a precompiled hex file of all the previous changes.
• Added auto PID tune of heatbed to the special TFT menu
•Enabled automatic saving on both PID tune commands
• Added preheating and mesh leveling commands to the special TFT menu
• Mentioned changes in readme
Using TMC2208 in standalone mode, I've inverted the stepper direction to match Anycubics pin layout. M110 memory watcher was removed due to redundancy and - ironically - to save memory.