Original Prusa i3 MK3S/+ to MK3.5S Upgrade Kit

The Original Prusa i3 MK3S/+ to MK3.5S Upgrade Kit is an official enhancement package designed to elevate your MK3S or MK3S+ 3D printer to the MK3.5S standard. This upgrade introduces significant hardware and software improvements, including a 32-bit xBuddy motherboard, a modern xLCD interface, and enhanced connectivity options such as Wi-Fi and Ethernet. These enhancements collectively contribute to improved print quality, reliability, and user experience.
This upgrade enables support for advanced features like Input Shaper and Pressure Advance, effectively doubling the printing speed. It also includes a new load cell sensor for automatic first-layer calibration and filament detection, ensuring consistent and reliable prints.

Key Features:

• 32-bit xBuddy Motherboard: Offers faster processing, better thermal management, and supports advanced features like Input Shaper and Pressure Advance.
• xLCD Interface: Modern user interface with enhanced display capabilities.
• Enhanced Connectivity: Includes Wi-Fi and Ethernet support for remote monitoring and control via Prusa Connect.
• Load Cell Sensor: Provides automatic first-layer calibration and filament detection.
• Improved Cooling: Features a high-performance 360° cooling system for consistent print quality.
• Advanced Firmware Support: Enables high-speed printing and improved motion control.

Product Specifications:

• Compatibility: Original Prusa i3 MK3S and MK3S+
• Upgrade Target: Converts printer to MK3.5S specification
• Firmware Requirement: Latest firmware version recommended for optimal performance
• Printing Requirement: Printed parts required (not included; STL files provided)

Package Contents:

• 32-bit xBuddy board (same as MK4S)
• Metal xBuddy case (and cover)
• xLCD screen + cables (same as MK4S)
• Cable adapters for your current extruder and heatbed
• Expansion joints for Heatbed
• Fasteners and other accessories
• Filament for printable parts
• WI-FI module
• NFC module
• Injection molded parts

Parts kept from your MK3S/MK3S+

• Extruder with V6 hotend
• Frame and extrusions (the new MK4S has just a different look)
• PSU* (same wattage/voltage as MK4S)
• Heatbed MK52 24V (thermistor and power cables will be changed)
• X/Y/Z/E motors
• X/Y/Z rods and bearings