MechDraft

MechDraft is a free 3D CAD tool focusing on mechanical assemblies. It provides a parts library for gears, bearings, and fasteners. A collision detection feature checks if moving parts interfere. MechDraft’s user interface is streamlined for dimensioning, tolerances, and BOM generation. The program also handles 2D drafting for production drawings. By centering on mechanical components and real-time collision checks, MechDraft suits engineering students or small machine shops needing essential 3D capabilities without an upfront license cost.