The QIDI Max 4 arrives as a formidable FDM multicolor 3D printer, sporting a massive build volume of 390 x 390 x 340 mm, making it suitable for substantial projects. Its inclusion of heating and cooling elements positions it for serious hobbyists who have watched Core XY machines gain accessibility against older, more basic models.

Setup proved straightforward, aided by QR codes linking to video guides and on-screen prompts for calibration. However, integrating the optional QIDI Polar Cooler introduced an immediate hiccup: the cooling hose lacked enough slack, causing crimping and stress markings on the tube during operation at extreme print head positions.

Engineered for advanced materials, the heated chamber supports up to 65C, accommodating filaments like ABS, PC, and carbon fiber composites. Connectivity is comprehensive, featuring 2.4/5GHz Wi-Fi, Ethernet, and USB, all running on Klipper firmware, which allows for flexibility beyond QIDI’s own software suite.

The accompanying QIDI Box handles up to four spools for multi-color jobs or filament redundancy, and users can chain four units for sixteen material slots. While the printing speeds are quick—up to 800 mm/s—the reviewer suggests slower settings often yield superior accuracy, tempering expectations about raw speed.