{"uid":"cap_ycn1Jk_V2AB6vAVmqmZP3","slug":"genworks-involute-spur-gear-cad-generator-c0cb6402","name":"Genworks Involute Spur Gear CAD Generator","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)","url":"https://genworks.com/demo/gear/cad?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["teeth"],"properties":{"mate":{"type":"integer","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"},"shift":{"type":"number","description":"Profile shift coefficient x; a small tooth count needs a positive shift, and the refusal says how much"},"teeth":{"type":"integer","description":"Number of teeth, 6 to 200"},"trace":{"type":"string","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"},"format":{"type":"string","description":"step, iges, or json for the drawing numbers alone; default step"},"module":{"type":"number","description":"Module in mm (pitch diameter / teeth); default 1"},"backlash":{"type":"number","description":"Tooth thickness reduction at the pitch circle, mm; default 0"},"face_width":{"type":"number","description":"Face width in mm: when given, the file holds the extruded solid instead of the planar outline"},"mate_shift":{"type":"number","description":"The mate's profile shift coefficient; default 0"},"pressure_angle":{"type":"number","description":"Pressure angle in degrees: 14.5, 20 or 25 are the standards; default 20"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iPmgLeAf0Tg9BWsl_rEMz","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates precise involute spur gear geometry as STEP or IGES NURBS curves, optional extruded solids, meshing gear pairs, or JSON drawing numbers","exampleAgentPrompt":"Generate a STEP file for an involute spur gear with 20 teeth, module 2mm, and 20-degree pressure angle — I also need the extruded solid so use a face width of 15mm.","exampleUseCases":[{"title":"Gear pair assembly for gearbox design","prompt":"I need a STEP file with two meshing spur gears — the driver has 18 teeth and the driven gear has 54 teeth, both module 1.5mm, 20-degree pressure angle, meshed at the correct working center distance."},{"title":"Drawing numbers for gear specification sheet","prompt":"Give me the JSON drawing numbers for a spur gear with 32 teeth, module 2mm, pressure angle 20 degrees, and a profile shift of 0.3 — I need the module, teeth, pressure angle, shift, and backlash values for my engineering spec sheet."},{"title":"Small tooth count gear with profile shift","prompt":"Generate an IGES file for a spur gear with only 10 teeth and module 1mm — I know small tooth counts need a positive profile shift, so apply whatever shift is needed to avoid undercutting, and use a face width of 8mm for the solid."}],"resultDescription":"Returns a STEP or IGES file containing exact NURBS curves of the involute gear outline, optionally extruded into a 3D solid if face_width is specified, or a meshing gear pair positioned at the working center distance if a mate gear is specified. When format=json, returns a JSON object with drawing numbers including module, teeth count, pressure angle, profile shift, and backlash. Optionally includes a free verification record detailing the contract, standards, checks, and computed numbers.","failureModes":["Tooth count below 6 or above 200 returns an error","Profile shift too small for small tooth count — response indicates required minimum shift","Invalid pressure angle (not 14.5, 20, or 25 degrees) may be rejected or produce non-standard geometry","Invalid format string returns error","Missing required 'teeth' parameter causes request failure","Requesting face_width as zero or negative value may produce unexpected results"],"whenToPreferThis":"Choose this endpoint when you need mathematically exact involute spur gear geometry exported as industry-standard CAD formats (STEP/IGES) with full NURBS precision, rather than approximate polygonal meshes. Ideal for mechanical engineering workflows requiring import into CAD tools like SolidWorks, CATIA, or FreeCAD, or when you need verified drawing numbers (module, teeth, pressure angle, profile shift, backlash) for manufacturing documentation. Prefer over generic CAD generation services when gear-specific parameters like profile shift, backlash, and meshing pair geometry at the correct working center distance are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:35:39.901Z","isFirstParty":false,"canonicalSlug":"genworks-involute-spur-gear-cad-generator-c0cb6402"}