{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "slamtec-rplidar-s3",
 "name": "SLAMTEC RPLIDAR S3 lidar: 55.6 mm base, M2.5 mounting holes and optical window height",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Modules, sensors & displays",
 "year": null,
 "question": "What are the SLAMTEC RPLIDAR S3 dimensions, mounting holes and optical clearance?",
 "tags": [
  "rplidar s3",
  "slamtec lidar",
  "2d lidar",
  "lidar mount",
  "robot lidar",
  "laser scanner"
 ],
 "aliases": [
  "SLAMTEC RPLIDAR S3",
  "rplidar s3",
  "slamtec s3",
  "slamtec rplidar s3 dimensions",
  "rplidar s3 mounting holes",
  "360 degree lidar scanner"
 ],
 "overall_mm": {
  "length": 55.6,
  "width": 55.6,
  "height": 41.3
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/slamtec-rplidar-s3/",
 "sheet_txt": "https://xemstudio.com/objects/slamtec-rplidar-s3/sheet.txt",
 "sheet": {
  "basis": "SLAMTEC RPLIDAR S3 datasheet v1.0, Figure 4-1 Mechanical Dimensions.",
  "overall_mm": {
   "length": 55.6,
   "width": 55.6,
   "height": 41.3
  },
  "notes": [
   "Datum: bottom mounting face on z=0, centred on X and Y; the cable exits on the −Y side.",
   "Base 55.60 × 55.60 × 23.35 high; overall height 41.30 to the top of the optical housing (Ø50.2, chamfered to Ø41.2 at the top).",
   "Four M2.5 threaded holes in the bottom face on a 43.00 × 43.00 square centred on the base, max screw engagement 4.0 mm.",
   "Optical band z=23.35..41.30 must stay clear through the full 360°.",
   "Not modelled: cable, strain relief and XH2.54-5P plug (the cable exit reaches 59.80 from the +Y edge), the bottom recess and case screws.",
   "Dimensions are exact nominal mm; the housing diameter is scaled from the drawing."
  ],
  "table": {
   "columns": [
    "hole",
    "x (mm)",
    "y (mm)",
    "thread",
    "depth (mm)"
   ],
   "rows": [
    [
     "1",
     -21.5,
     -21.5,
     "M2.5",
     4
    ],
    [
     "2",
     21.5,
     -21.5,
     "M2.5",
     4
    ],
    [
     "3",
     -21.5,
     21.5,
     "M2.5",
     4
    ],
    [
     "4",
     21.5,
     21.5,
     "M2.5",
     4
    ]
   ]
  }
 },
 "sheet_text": "SLAMTEC RPLIDAR S3 lidar: 55.6 mm base, M2.5 mounting holes and optical window height — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/slamtec-rplidar-s3/  (sheet CC BY 4.0)\nBasis: SLAMTEC RPLIDAR S3 datasheet v1.0, Figure 4-1 Mechanical Dimensions.\nCatalog version: 2026-10-20\n\nOverall (mm): length 55.6, width 55.6, height 41.3\n- Datum: bottom mounting face on z=0, centred on X and Y; the cable exits on the −Y side.\n- Base 55.60 × 55.60 × 23.35 high; overall height 41.30 to the top of the optical housing (Ø50.2, chamfered to Ø41.2 at the top).\n- Four M2.5 threaded holes in the bottom face on a 43.00 × 43.00 square centred on the base, max screw engagement 4.0 mm.\n- Optical band z=23.35..41.30 must stay clear through the full 360°.\n- Not modelled: cable, strain relief and XH2.54-5P plug (the cable exit reaches 59.80 from the +Y edge), the bottom recess and case screws.\n- Dimensions are exact nominal mm; the housing diameter is scaled from the drawing.\n\nhole  x (mm)  y (mm)  thread  depth (mm)\n1  -21.5  -21.5  M2.5  4.0\n2  21.5  -21.5  M2.5  4.0\n3  -21.5  21.5  M2.5  4.0\n4  21.5  21.5  M2.5  4.0\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- SLAMTEC: RPLIDAR S3 datasheet v1.0 (CN) — web — Publisher's page; dimensions are facts — https://bucket-download.slamtec.com/df7f5cd59db82931de79c9f2106c2cb85e10418b/SLAMTEC_rplidar_datasheet_S3_v1.0_cn.pdf\n- SLAMTEC: RPLIDAR S3 specification image — web — Publisher's page; dimensions are facts — https://image.slamtec.com/images/s3/pc/s3-spec.webp\n- OpenZeka: SLAMTEC RPLIDAR S3 datasheet v1.0 (EN) — web — Publisher's page; dimensions are facts — https://openzeka.com/wp-content/uploads/2023/10/SLAMTEC_rplidar_datasheet_S3_v1.0_en.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/slamtec-rplidar-s3/index.json\nAPI: https://xemstudio.com/api/geometry?object=slamtec-rplidar-s3\n",
 "sources": [
  {
   "publisher": "SLAMTEC",
   "title": "RPLIDAR S3 datasheet v1.0 (CN)",
   "url": "https://bucket-download.slamtec.com/df7f5cd59db82931de79c9f2106c2cb85e10418b/SLAMTEC_rplidar_datasheet_S3_v1.0_cn.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "SLAMTEC",
   "title": "RPLIDAR S3 specification image",
   "url": "https://image.slamtec.com/images/s3/pc/s3-spec.webp",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "OpenZeka",
   "title": "SLAMTEC RPLIDAR S3 datasheet v1.0 (EN)",
   "url": "https://openzeka.com/wp-content/uploads/2023/10/SLAMTEC_rplidar_datasheet_S3_v1.0_en.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
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  "tolerance_mm": null
 },
 "related": [
  "socket-head-cap-screws-metric",
  "threaded-standoffs-metric",
  "jst-connectors",
  "raspberry-pi-5",
  "jetson-orin-nano-devkit"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "Bottom mounting holes",
   "exact": "4 × M2.5 on 43.00 × 43.00, 4.0 deep max",
   "mates": "M2.5 screws through a mounting plate",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "Optical band",
   "exact": "z 23.35–41.30, 360°",
   "mates": "keep-out for mounts, covers and cables",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "What is the RPLIDAR S3 mounting-hole pattern?",
   "a": "Four M2.5 threaded holes on a 43.00 × 43.00 mm square in the bottom face, max 4.0 mm screw engagement."
  },
  {
   "q": "How big is the RPLIDAR S3?",
   "a": "55.60 × 55.60 mm base, 41.30 mm overall height; the base is 23.35 mm tall."
  },
  {
   "q": "What must stay clear?",
   "a": "The optical housing from 23.35 to 41.30 mm above the mounting face, all the way round."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "slamtec-rplidar-s3",
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/slamtec-rplidar-s3/slamtec-rplidar-s3.step",
   "stl": "https://xemstudio.com/files/hardware/slamtec-rplidar-s3/slamtec-rplidar-s3.stl",
   "note": "SLAMTEC RPLIDAR S3 lidar: 55.6 mm base, M2.5 mounting holes and optical window height"
  }
 ],
 "markdown": "https://xemstudio.com/objects/slamtec-rplidar-s3/index.md"
}