Involute spur gear as exact NURBS: the outline as STEP or IGES curves, a solid when a face width is given, a meshing pair at the working center distance, and the drawing numbers as JSON (module, teeth, pressure angle, profile shift, backlash)
0.03 USD Coin / request · eip155:8453
GETx402 · listed
https://genworks.com/demo/naca-nurbs/cad
NACA 4/5-digit airfoil family as STEP or IGES NURBS curves (digits, chord, points, tolerance)
