A powerful, open-source choice. The dedicated Gear Workbench lets you generate spur, bevel, cycloide, and worm gears natively, which can then be exported as STLs. 3. OpenSCAD (Best for Programmers)
Input the exact diameter of the shaft the gear will sit on. If using a standard D-shaft motor, you may need to manually cut a flat edge into the circle later in CAD. gear+generator+stl
: A favorite among professionals. It allows you to create gears as editable components within your existing design. A powerful, open-source choice
: Slightly reduces tooth thickness to prevent binding in plastic prints. and worm gears natively