Adaptive Print Bed Heating Delay for Sovol SV08 and other klipper printer

This macro automates the heating delay time for large print beds, making it ideal for 3D printers with significant bed sizes. It intelligently adjusts the delay based on the actual bed temperature and the target temperature, ensuring optimal heating without unnecessary pauses.

Features:

Automatic Delay Calculation: The macro calculates the necessary heating delay time depending on how close the bed's current temperature is to the target temperature. If the bed is already warm, it minimizes the delay. If the bed is cold, it triggers a full heating cycle.

Configurable Heating Curve: The macro uses a quadratic formula to calculate the maximum heating time. The coefficients (a, b, and c) of the formula are configurable, allowing you to fine-tune the heating behavior based on your specific printer setup.

Preheat Detection: If the bed temperature is already close to the target (within 95%), the delay is minimized to 5 seconds. If the bed is moderately warm (within 85% of the target), the delay is set to 60 seconds. For colder conditions, the full calculated delay is applied.

User-Friendly Notifications: The macro provides clear feedback during the print start sequence, informing the user of the current bed temperature, the target temperature, and how long the heating delay will last.

Safety Checks: The macro includes a basic safety check to prevent the use of invalid temperatures, ensuring reliable operation.

Usage:

Simply replace the M140 command in your start_print macro with PRINTBED_AUTO_DELAY BED_TEMP={bed_targer_temp} (spelling mistake for SV08 users included :) ). The macro will handle the rest, adjusting the delay automatically based on the current conditions.

This macro is ideal for anyone who wants a more intelligent heating process, reducing unnecessary wait times and ensuring the bed is properly heated before starting a print.

Have fun!!!