Do you need help or selecting the best material for your 3D-printed gears ? STLGears.com | The Free Gear Designer
An STL gear generator is a specialized software tool or web application that uses parametric inputs—like tooth count and diameter—to automatically design a 3D gear model. Instead of drawing every tooth by hand, you input the mechanical requirements, and the generator outputs an , which is the standard format for 3D printing. Popular STL Gear Generator Tools stl gear generator
An is a specialized digital tool used to create 3D-printable models of gears by allowing users to input specific mechanical parameters. Instead of manually drawing complex involute curves in CAD software, these generators automatically calculate geometry based on values like tooth count, module, and pressure angle to export a ready-to-print STL file . Popular STL Gear Generators Do you need help or selecting the best
| Setting | Recommended Value | Why | | :--- | :--- | :--- | | | 0.12mm – 0.2mm | Finer teeth need smaller layers. | | Wall loops | 4+ (or 1.2mm min) | Teeth must have solid infill – never use gyroid on small teeth. | | Material | PETG or Nylon (CF) | PLA creeps under sustained torque. | | Cooling | 50-80% fan | Preents “elephant foot” that jams mesh. | | Print orientation | Flat, teeth up | Sideways teeth have weak layer lines. | Popular STL Gear Generator Tools An is a
Let’s assume you need a small nylon gear for a robot wheel.
✅ Backlash added (0.1mm min for FDM) ✅ Hub has enough wall thickness (≥ 2x tooth height) ✅ Shaft hole is slightly undersized (drill to final size for perfect fit) ✅ File is exported in millimeters (some generators default to inches – watch out)