3D creation is usually conducted in professional laboratories. With its popularization, the market demand turns from industrial, large-sized 3D printers to consumer-grade, desktop ones. Specially designed for makers keen on 3D printing, J1 is a desktop 3D printer equipped with IDEX. It features diverse modes, high-quality printing, simple operation, supporting materials printing, and easy calibration, whereby users can enjoy a professional 3D printing experience in their personal workshops.The pioneering IDEX supports dual-color/material printing, and is compatible with flexible materials, breakaway support materials, modeling materials and soluble/dissolvable support materials. The replaceable hot end sock avoids heat loss, achieving compatibility with high temperature resistant printing filaments. J1 allows for dual-color/copy/mirror/backup printing. IDEX is the only extrusion system with two separate extruders moving independently on the x-axis, and thus helps to run two prints simultaneously, increasing printing efficiency by 100%. The optimized vibration compensation technology improves the quality of high-speed printing by reducing the vibrations and minimizing ringing caused by high-speed movement. With high-precision linear rails boasting a lifespan over 10 years, the product works at 350 mm/s (regular 3D printers print at 50-80 mm/s). The easy-to-operate 5-inch intuitive touchscreen can guide users to calibration service. Utilizing electrical conduction technology, J1 is able to locate the two hot ends as well as the heated bed, and measure the distances between the three entities, which helps to accurately and efficiently complete the calibration in 15 minutes.