{"uid":"cap_UN7tYXnV80N-qlwuYdv6T","slug":"saylor-innovations-cnc-feeds-and-speeds-calculator-9d210ebe","name":"Saylor Innovations CNC Feeds and Speeds Calculator","description":"RPM, feed rate, chip load, plunge, MRR and horsepower check for a material and cutter","url":"https://saylorinnovations.com/api/maker/feeds-speeds?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":["material","tool_diameter_in"],"properties":{"flutes":{"type":"string","description":"optional, default 2 (query)"},"max_rpm":{"type":"string","description":"optional spindle limit, default 24000 (query)"},"material":{"type":"string","description":"required aluminum_6061, mild_steel, stainless_304, brass, titanium, cast_iron, hardwood, plastic_acrylic or plywood_mdf (query)"},"spindle_hp":{"type":"string","description":"optional spindle power, default 2 (query)"},"aggressiveness":{"type":"string","description":"optional conservative, normal (default) or aggressive (query)"},"tool_diameter_in":{"type":"string","description":"required cutter diameter in inches (or tool_diameter_mm) (query)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Jlrn11MTxjZMg1izqHQ-t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates CNC machining parameters — RPM, feed rate, chip load, plunge rate, material removal rate, and horsepower — for a given material and cutter","exampleAgentPrompt":"What RPM and feed rate should I use to mill 6061 aluminum with a 3/8-inch 2-flute end mill on my router that tops out at 18000 RPM and has a 1.5 hp spindle? Use normal aggressiveness.","exampleUseCases":[{"title":"Hobby CNC router feeds for plywood","prompt":"I'm cutting 3/4-inch plywood on my CNC router with a 1/4-inch 2-flute upcut bit and a 24000 RPM spindle at 2 hp — what feed rate, RPM, and chip load should I use?"},{"title":"Stainless steel milling parameter check","prompt":"I need feeds and speeds for milling 304 stainless with a 1/2-inch 4-flute end mill. My spindle maxes out at 10000 RPM and puts out 3 hp. Give me conservative settings."},{"title":"Slotting brass on a benchtop mill","prompt":"What are the right feeds and speeds for slotting brass with a 3/16-inch 2-flute end mill? I'm doing a full-width slot and my spindle limit is 5000 RPM."}],"resultDescription":"Returns a JSON object with computed CNC machining parameters including recommended RPM, feed rate (in/min), chip load (in/tooth), plunge rate (in/min), material removal rate (MRR in³/min), and estimated horsepower required — tailored to the specified material, cutter geometry, and machine constraints.","failureModes":["Missing required parameters (material or tool_diameter_in) returns a 400-level error","Unsupported material string returns an error — must use exact enum values like aluminum_6061 or mild_steel","Extremely small or large tool diameters may produce out-of-range or unexpected results","Invalid numeric strings for optional parameters (e.g. non-numeric max_rpm) may cause computation errors","Spindle HP too low for aggressive parameters may return a warning or capped values"],"whenToPreferThis":"Use this endpoint when you need fast, formula-driven CNC machining parameter recommendations for a specific material and end mill, especially when the user provides machine constraints like max RPM or spindle HP. Prefer it over manual lookup tables or generic machining references when you need chip load, MRR, and horsepower all computed together in one call. Ideal for hobbyist and prosumer CNC contexts (routers, benchtop mills) with supported materials including aluminum, steel, brass, titanium, hardwood, and plastics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:41:25.402Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-cnc-feeds-and-speeds-calculator-9d210ebe"}