davide
0908191ef3
Complete ISO 286-1 skill for mechanical designers covering: - Fit selection (clearance/transition/interference) with intake protocol - IT grades 1–16 with required machining processes for bores and shafts - Full functional elements reference: rolling bearings, gears, keys (DIN 6885), Seeger rings, cylindrical pins, plain bushings, lip seals, splined profiles, couplings, linear guides (14 sections total) - Fundamental deviations table (bores A–ZC, shafts a–zc, Ø1–500 mm) - Surface roughness Ra correlation by IT grade - Python calculator (scripts/calculate_fit.py) with JSON data files for exact clearance/interference computation and formatted fit data sheet output - Visual input support: analyses attached drawings, sketches, photos - Description ≤ 1024 chars, written in English for optimal trigger accuracy Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
23 lines
1.5 KiB
JSON
23 lines
1.5 KiB
JSON
{
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"_note": "Valori tolleranza IT in micrometri (µm) per campo di diametro — ISO 286-1 Tabella 1",
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"ranges": ["1-3", "3-6", "6-10", "10-18", "18-30", "30-50", "50-80", "80-120", "120-180", "180-250", "250-315", "315-400", "400-500"],
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"grades": {
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"IT1": [0.8, 1, 1, 1.2, 1.5, 1.5, 2, 2.5, 3.5, 4.5, 6, 7, 8 ],
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"IT2": [1.2, 1.5, 1.5, 2, 2.5, 2.5, 3, 4, 5, 7, 8, 9, 10 ],
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"IT3": [2, 2.5, 2.5, 3, 4, 4, 5, 6, 8, 10, 12, 13, 15 ],
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"IT4": [3, 4, 4, 5, 6, 7, 8, 10, 12, 14, 16, 18, 20 ],
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"IT5": [4, 5, 6, 8, 9, 11, 13, 15, 18, 20, 23, 25, 27 ],
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"IT6": [6, 8, 9, 11, 13, 16, 19, 22, 25, 29, 32, 36, 40 ],
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"IT7": [10, 12, 15, 18, 21, 25, 30, 35, 40, 46, 52, 57, 63 ],
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"IT8": [14, 18, 22, 27, 33, 39, 46, 54, 63, 72, 81, 89, 97 ],
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"IT9": [25, 30, 36, 43, 52, 62, 74, 87, 100, 115, 130, 140, 155],
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"IT10": [40, 48, 58, 70, 84, 100, 120, 140, 160, 185, 210, 230, 250],
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"IT11": [60, 75, 90, 110, 130, 160, 190, 220, 250, 290, 320, 360, 400],
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"IT12": [100, 120, 150, 180, 210, 250, 300, 350, 400, 460, 520, 570, 630],
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"IT13": [140, 180, 220, 270, 330, 390, 460, 540, 630, 720, 810, 890, 970],
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"IT14": [250, 300, 360, 430, 520, 620, 740, 870, 1000,1150,1300,1400,1550],
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"IT15": [400, 480, 580, 700, 840, 1000,1200,1400,1600,1850,2100,2300,2500],
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"IT16": [600, 750, 900, 1100,1300,1600,1900,2200,2500,2900,3200,3600,4000]
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}
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}
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