Mack Granite Flatbed Truck 6×4 STL 3D Print Model

The Mack Granite is a heavy-duty 6×4 flatbed truck widely used in construction, infrastructure, and utility hauling operations. This highly detailed 3D printable model captures the iconic Mack Granite cab with its characteristic squared hood, tall exhaust stacks, front push bar, and perforated headache rack behind the cab. The flat cargo bed features tie-down rings, rear bumper with triangle reflector cutouts, and dual rear axles with aggressive off-road tires. The model is supplied as a ZIP archive containing STL files and includes two versions: a solid cab version and a windowed/lights version for added realism.

Print settings

FDM printing is recommended for most parts; resin printing will better capture fine surface details such as the perforated headache rack, tire tread pattern, and small cab accessories. Print the cab and flatbed as separate pieces oriented upright to minimize supports; the exhaust stacks and mirrors will require light supports. An infill of 20–30% with PLA or PETG is suitable for display models. Scale to your desired output — the model is provided as a unit-scale STL ready for slicing.