Enhances printing precision and stability by maintaining belt tension on the X axis with the X Axises Synchronous Belt Tensioner, specifically for 3 and similar models. Constructed from strength aluminum alloy and stainless steel for durability and reliable performance. Adjustable tension with support for belt widths of 6 mm, 9 mm, and 10 mm to suit different printers. Specifically designed for X Axises Synchronous Belt Tensioner and compatible with 3 and similar models, offering reliable and consistent operation. Enables printer optimization without complex modifications, helping users achieve better results with minimal changes. Ideal for home workshops, educational environments, or professional studios where precision in printing is essential. Use scenarios Upgrading a home 3D printer to improve dimensional accuracy and layer alignment on the X axis. Educational settings such as schools or training centers to demonstrate belt tension control and improve print outcomes. Professional studios that run repeated prints with varying belt widths, requiring stable tension and consistent quality across runs.