{
 "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": "speedybee-bls-55a-4in1-esc-30x30",
 "name": "SpeedyBee BLS 55A 4-in-1 ESC (30×30)",
 "kind": "modern",
 "category": "Drones",
 "group": "Flight controllers and ESCs",
 "year": null,
 "question": "What are the dimensions of the SpeedyBee BLS 55A 4-in-1 ESC (30×30)?",
 "tags": [
  "drone",
  "quadcopter",
  "fpv",
  "uav",
  "flight controllers and escs"
 ],
 "aliases": [
  "SpeedyBee 55A ESC dimensions",
  "SpeedyBee BLS 55A size",
  "SpeedyBee F405 V4 stack ESC size",
  "SpeedyBee 55A 4in1 mounting",
  "SpeedyBee 55A ESC weight",
  "SpeedyBee F405 V4 stack height",
  "dimensiones ESC SpeedyBee 55A",
  "SpeedyBee 55A ESC Abmessungen"
 ],
 "overall_mm": {
  "length": 45.6,
  "width": 44,
  "height": 8
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/speedybee-bls-55a-4in1-esc-30x30/",
 "sheet_txt": "https://xemstudio.com/objects/speedybee-bls-55a-4in1-esc-30x30/sheet.txt",
 "sheet": {
  "basis": "Secondary source: KiwiQuads (copy of the maker's figures; the maker publishes none directly)",
  "overall_mm": {
   "length": 45.6,
   "width": 44,
   "height": 8
  },
  "notes": [
   "The ESC half of the SpeedyBee F405 V4 55A stack, as listed by KiwiQuads.",
   "Modelled as a block with four Ø4 holes on a centred 30.5 mm square; capacitor and pad positions are not modelled.",
   "True size, no printing tolerance added. Only published numbers are used; anything not published is said so.",
   "Secondary source: the numbers come from a retailer or magazine copy of the maker's specification."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "Board size",
     "45.6 × 44 × 8 mm"
    ],
    [
     "Mounting pattern",
     "30.5 × 30.5 mm"
    ],
    [
     "Mounting hole",
     "Ø4 mm"
    ],
    [
     "Weight",
     "23.5 g"
    ]
   ]
  }
 },
 "sheet_text": "SpeedyBee BLS 55A 4-in-1 ESC (30×30) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/speedybee-bls-55a-4in1-esc-30x30/  (sheet CC BY 4.0)\nBasis: Secondary source: KiwiQuads (copy of the maker's figures; the maker publishes none directly)\nCatalog version: 2026-10-20\n\nOverall (mm): length 45.6, width 44, height 8\n- The ESC half of the SpeedyBee F405 V4 55A stack, as listed by KiwiQuads.\n- Modelled as a block with four Ø4 holes on a centred 30.5 mm square; capacitor and pad positions are not modelled.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.\n\ndimension  value\nBoard size  45.6 × 44 × 8 mm\nMounting pattern  30.5 × 30.5 mm\nMounting hole  Ø4 mm\nWeight  23.5 g\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- KiwiQuads: SpeedyBee F405 V4 BLS 55A 30×30 stack — web — Publisher's page; dimensions are facts — https://www.kiwiquads.co.nz/product/speedybee-f405-v4-bls-55a-30x30-stack-2\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/speedybee-bls-55a-4in1-esc-30x30/index.json\nAPI: https://xemstudio.com/api/geometry?object=speedybee-bls-55a-4in1-esc-30x30\n",
 "sources": [
  {
   "publisher": "KiwiQuads",
   "title": "SpeedyBee F405 V4 BLS 55A 30×30 stack",
   "url": "https://www.kiwiquads.co.nz/product/speedybee-f405-v4-bls-55a-30x30-stack-2",
   "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,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "speedybee-f405-v4-flight-controller",
  "speedybee-f405-mini-flight-controller-20x20",
  "speedybee-35a-bls-mini-v2-esc-20x20"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. 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.",
 "mating": [],
 "faq": [
  {
   "q": "How big is the SpeedyBee 55A ESC?",
   "a": "45.6 × 44 × 8 mm, 30.5 × 30.5 mm mounting, 23.5 g."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "speedybee-bls-55a-4in1-esc-30x30-board",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/speedybee-bls-55a-4in1-esc-30x30/speedybee-bls-55a-4in1-esc-30x30-board.step",
   "stl": "https://xemstudio.com/files/hardware/speedybee-bls-55a-4in1-esc-30x30/speedybee-bls-55a-4in1-esc-30x30-board.stl",
   "note": "Board 45.6 × 44 × 8 mm with its published mounting holes (holes centred on the board)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/speedybee-bls-55a-4in1-esc-30x30/index.md"
}