{"slug":"genworks-com-demo-gear-cad-72a805","title":"Involute spur gear as exact NURBS","host":"genworks.com","method":"GET","resource":"https://genworks.com/demo/gear/cad","category":"other","description":"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)","price_listed":0.03,"price_asked":0.25,"state":"overcharges","state_label":"Asked 8.3x its listed price for its own example","checks_7d":1,"answered_7d":1,"latency_ms_median":1144,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"backlash":0,"face_width":10,"format":"step","mate":40,"mate_shift":0,"module":2,"pressure_angle":20,"shift":0,"teeth":20,"trace":"1"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"backlash":{"description":"Tooth thickness reduction at the pitch circle, mm; default 0","type":"number"},"face_width":{"description":"Face width in mm: when given, the file holds the extruded solid instead of the planar outline","type":"number"},"format":{"description":"step, iges, or json for the drawing numbers alone; default step","type":"string"},"mate":{"description":"Tooth count of a mating gear: when given, the file holds both gears meshed at the working center distance and the report adds the pair's numbers","type":"integer"},"mate_shift":{"description":"The mate's profile shift coefficient; default 0","type":"number"},"module":{"description":"Module in mm (pitch diameter / teeth); default 1","type":"number"},"pressure_angle":{"description":"Pressure angle in degrees: 14.5, 20 or 25 are the standards; default 20","type":"number"},"shift":{"description":"Profile shift coefficient x; a small tooth count needs a positive shift, and the refusal says how much","type":"number"},"teeth":{"description":"Number of teeth, 6 to 200","type":"integer"},"trace":{"description":"1 to be given the free verification record for this result (the contract, the standards, the checks, the numbers); omitted, nothing extra is included","type":"string"}},"required":["teeth"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.25,"price_match":false,"latency_ms":1144,"error":null}],"description_full":"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)","last_updated":"2026-09-18T18:14:22.056Z","schemes":["exact"]}