# NEMA17 Stepper 5mm D-Shaft 3D-Print Gear .STL Generator

Export watertight binary .STL spur gears with integrated 5.0mm NEMA17 D-flat bore, raised set-screw hub boss, and 0.14mm FDM printer backlash compensation.

## Engineering Geometry & Export Specification
- Pre-calibrated with 0.14mm FDM extrusion backlash allowance and exact 4.5mm across-flat NEMA17 D-shaft bore for PA-CF, PETG, and PLA printing.
- CAD Outputs: 0.005mm AutoCAD R12 `.DXF`, `.SVG`, Watertight 3D Binary `.STL` (4–40mm face + hub boss + bore), and `1:1` Printable `.PDF`.
- Pricing: Free Spec Proof PDF ($0) · Single CAD Pack ($11.90) · Mechanical Engineer Pro ($19.00/mo).
- Live Interactive Workbench: https://gearcadpro.com/templates/nema17-d-shaft-3d-print-gear-stl.html