The Ender 3 Pro printer is well-known, but this is no ordinary printer! It has been fully upgraded and modified with high-end parts, transforming it from a beginner printer into a very fast and accurate production beast that rivals the latest printers. The printer runs entirely on the Klipper system and is ready for immediate use. Professional Specifications and Modifications: Processor and Main Controller: Raspberry Pi 4 (8GB RAM version) to ensure complete smoothness in data processing and running the Klipper system. Motherboard: BIGTREETECH SKR MINI E3 V3 (completely silent and quiet during printing with excellent thermal management). Extruder & Hotend: Creality Sprite Extruder Pro (Direct Drive) that withstands high temperatures and is excellent for printing flexible materials like TPU and PETG, with strong and accurate extrusion. Dual Z-Axis: Z-axis modification to work on two axes to ensure arm stability and prevent any sagging or vibration during upward movement, resulting in excellent surface quality. Control Screens (Dual): A large 7-inch touchscreen dedicated to the Klipper interface for complete and easy control. An additional TFT35 V3.0.1 screen that supports two modes (Touch and Marlin mode). Control, Convenience, and Monitoring: Connected Camera: To monitor printing remotely from your phone or computer and create timelapse videos. LED Lighting System: Integrated for clear visibility and monitoring of prints in the dark. Filament Runout Sensor: To pause printing and alert you if the filament runs out. Adjustable Belts: Belt tensioners for the axes for easy maintenance and quick adjustments. 🔄 The Difference Between the Basic Printer and the New Modification (Why Buy This Printer?) 1. System and Speed: Basic Printer: Runs on the old, traditional Marlin system (limited speed and basic control features). New Modification: Runs on the modern Klipper system, powered by a Raspberry Pi 4, giving you extremely high printing speed while maintaining extreme detail accuracy. 2. Extrusion Head and Materials: Basic Printer: Bowden Extruder system (very difficult and constant problems when printing flexible materials like TPU). New Modification: Professional Sprite Extruder Pro (Direct Drive) head, allowing you to print all types of filament smoothly and stably with strong, direct extrusion. 3. Stability and Surface Quality: Basic Printer: Single Z-axis on one side (may cause arm tilt and vibrations affecting print quality). New Modification: Upgrade to Dual Z-Axis for absolute stability and complete elimination of defects or lines caused by printer arm wobble. 4. Control and Monitoring: Basic Printer: Old and limited blue screen, manual control only from the printer. New Modification: Smart and comprehensive control system via a 7-inch touchscreen, with a remote monitoring camera, and the ability to control the printer and send files from your phone or computer via a web browser. 5. Sound and Comfort: Basic Printer: Motor noise is very loud and annoying during operation. New Modification: Thanks to the professional SKR Mini E3 V3 motherboard, the printer is completely silent and quiet, making it very suitable for operation inside a room or home without any disturbance. 💡 Printer Condition: The printer is in excellent condition, precisely calibrated and tested. The modifications have cost a lot of time and money to achieve this stable and fast performance. Selling because I have another printer and no longer need this one.