Simple 3DPrintMill (CR-30) direct extruder direct - for stock extruders

为3DPrintMill原厂挤出机定制，可以让你的挤出更顺畅，同时使用TPU成功率提高。
Customized for the original 3DPrintMill extruder, it allows you to have a smoother extrusion while using TPU with an increased success rate.
======================================================================2021.3.14 增加了加强稳定性以及预留电缆链接口的版本，后续将增加电缆链配置；增加了直接挤出的切片配置（用于cura belt 3.6.0）
2021.3.14 Added version with enhanced stability and reserved cable link port, cable chain configuration will be added later; added direct extrusion slicing configuration (for cura belt 3.6.0)