{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "neodymium-disc-magnets",
 "name": "Neodymium disc magnets, common sizes",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Magnets & seals",
 "year": null,
 "question": "What pocket size do 6×3 and 10×3 magnets need in a 3D print?",
 "tags": [
  "magnet",
  "closure",
  "lid",
  "stirling",
  "long earth society"
 ],
 "aliases": [
  "6x3 magnet",
  "10x3 magnet",
  "neodymium magnet",
  "n52 magnet",
  "magnet pocket"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 6,
 "url": "https://xemstudio.com/objects/neodymium-disc-magnets/",
 "sheet_txt": "https://xemstudio.com/objects/neodymium-disc-magnets/sheet.txt",
 "sheet": {
  "basis": "standard disc sizes; nominal, N35–N52 share dimensions",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Common sizes: Ø6 × 3, Ø8 × 3, Ø10 × 3, Ø12 × 3, Ø5 × 2, Ø3 × 1 mm (tolerance about ±0.1 mm).",
   "Press-fit pocket: diameter + 0.1–0.2 mm, depth = thickness; glue-in: diameter + 0.4 mm. A 0.5 mm floor between magnet and the mating part keeps pull strong and the surface smooth.",
   "Polarity: mark north on the pair before gluing."
  ],
  "table": {
   "columns": [
    "size",
    "dia_mm",
    "thick_mm",
    "press_fit_hole_mm",
    "glue_hole_mm"
   ],
   "rows": [
    [
     "3x1",
     3,
     1,
     3.15,
     3.4
    ],
    [
     "5x2",
     5,
     2,
     5.15,
     5.4
    ],
    [
     "6x3",
     6,
     3,
     6.15,
     6.4
    ],
    [
     "8x3",
     8,
     3,
     8.15,
     8.4
    ],
    [
     "10x3",
     10,
     3,
     10.2,
     10.4
    ],
    [
     "12x3",
     12,
     3,
     12.2,
     12.4
    ]
   ]
  }
 },
 "sheet_text": "Neodymium disc magnets, common sizes — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/neodymium-disc-magnets/  (CC BY 4.0)\nBasis: standard disc sizes; nominal, N35–N52 share dimensions\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Common sizes: Ø6 × 3, Ø8 × 3, Ø10 × 3, Ø12 × 3, Ø5 × 2, Ø3 × 1 mm (tolerance about ±0.1 mm).\n- Press-fit pocket: diameter + 0.1–0.2 mm, depth = thickness; glue-in: diameter + 0.4 mm. A 0.5 mm floor between magnet and the mating part keeps pull strong and the surface smooth.\n- Polarity: mark north on the pair before gluing.\n\nsize  dia_mm  thick_mm  press_fit_hole_mm  glue_hole_mm\n3x1  3  1  3.15  3.4\n5x2  5  2  5.15  5.4\n6x3  6  3  6.15  6.4\n8x3  8  3  8.15  8.4\n10x3  10  3  10.2  10.4\n12x3  12  3  12.2  12.4\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- McMaster-Carr: Magnets (free STEP/IGES/STL per part, for your own design use; no redistribution) — STEP, IGES, STL, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/magnets/\n- Wikipedia: Neodymium magnet — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Neodymium_magnet\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/neodymium-disc-magnets/index.json\nAPI: https://xemstudio.com/api/geometry?object=neodymium-disc-magnets\n",
 "sources": [
  {
   "publisher": "McMaster-Carr",
   "title": "Magnets (free STEP/IGES/STL per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/magnets/",
   "formats": [
    "STEP",
    "IGES",
    "STL",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Wikipedia",
   "title": "Neodymium magnet",
   "url": "https://en.wikipedia.org/wiki/Neodymium_magnet",
   "formats": [
    "web"
   ],
   "license": "CC BY-SA 4.0 (text)",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "heat-set-inserts",
  "dowel-pins-metric"
 ],
 "faq": [
  {
   "q": "What hole size for a 6x3 mm magnet in a 3D print?",
   "a": "Press fit: 6.15 mm diameter, 3 mm deep. Glue-in: 6.4 mm. Leave a 0.5 mm floor between the magnet and the mating face."
  },
  {
   "q": "What size pocket for an 8x3 and 10x3 neodymium magnet?",
   "a": "8×3: 8.15 mm press / 8.4 mm glue. 10×3: 10.15 mm press / 10.4 mm glue. Tolerance on the magnets is about ±0.1 mm."
  },
  {
   "q": "How strong is a 6x3 mm N52 magnet?",
   "a": "Roughly 1 kg pull against mild steel in direct contact; through a 0.5 mm printed floor expect about half that. Pair magnets north-to-south and mark polarity before gluing."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "magnet-3x1",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-3x1.step",
   "stl": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-3x1.stl",
   "note": "disc Ø3 × 1"
  },
  {
   "file": "magnet-5x2",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-5x2.step",
   "stl": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-5x2.stl",
   "note": "disc Ø5 × 2"
  },
  {
   "file": "magnet-6x3",
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    "step",
    "stl"
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-6x3.step",
   "stl": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-6x3.stl",
   "note": "disc Ø6 × 3"
  },
  {
   "file": "magnet-8x3",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-8x3.step",
   "stl": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-8x3.stl",
   "note": "disc Ø8 × 3"
  },
  {
   "file": "magnet-10x3",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-10x3.step",
   "stl": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-10x3.stl",
   "note": "disc Ø10 × 3"
  },
  {
   "file": "magnet-12x3",
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    "step",
    "stl"
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-12x3.step",
   "stl": "https://xemstudio.com/files/hardware/neodymium-disc-magnets/magnet-12x3.stl",
   "note": "disc Ø12 × 3"
  }
 ],
 "markdown": "https://xemstudio.com/objects/neodymium-disc-magnets/index.md"
}