The Marlin firmware incorporates a software-based Z-stop feature, which utilizes pre-defined parameters within the configuration to prevent the printer’s nozzle from crashing into the print bed. This functionality is essential for safety and proper operation. Disabling this functionality requires modifying the firmware configuration, specifically by commenting out or altering the relevant lines of code. The exact procedure depends on the Marlin version being used.
Disabling this software safeguard is typically undertaken by experienced users who require greater control over the Z-axis movement. This might be necessary for specialized applications, such as certain types of laser engraving or CNC milling attachments adapted to a 3D printer frame. However, disabling the software Z-stop increases the risk of hardware damage and should only be performed with a thorough understanding of the potential consequences and with appropriate hardware-based safety measures in place.