{ "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": "atomic-filament-3-5-kg-spool", "name": "Atomic Filament 3.5 kg spool", "kind": "modern", "category": "3D printers & filament", "group": "Filament spools", "year": null, "question": "What are the dimensions of the Atomic Filament 3.5 kg spool?", "tags": [ "3d printer", "filament spool", "3d printing", "printer dimensions", "filament spools" ], "aliases": [ "Atomic Filament 3.5 kg spool dimensions", "Atomic Filament 3.5 kg spool size", "Atomic Filament 3.5 kg spool hub hole diameter", "Atomic Filament 3.5 kg spool spool holder", "Atomic Filament 3.5 kg spool AMS fit", "Atomic Filament 3.5 kg spool spool width", "Atomic Filament 3.5 kg spool outer diameter", "medidas carrete Atomic Filament 3.5 kg spool", "Spule Maße Atomic Filament 3.5 kg spool", "dimensões carretel Atomic Filament 3.5 kg spool" ], "overall_mm": { "length": 304.8, "width": 304.8, "height": 95.25 }, "official_cad": false, "xem_status": "free-files", "les": false, "free_files": 1, "url": "https://xemstudio.com/objects/atomic-filament-3-5-kg-spool/", "sheet_txt": "https://xemstudio.com/objects/atomic-filament-3-5-kg-spool/sheet.txt", "sheet": { "basis": "Manufacturer specifications (Atomic Filament)", "overall_mm": { "length": 304.8, "width": 304.8, "height": 95.25 }, "notes": [ "The Atomic Filament 3.5 kg spool measures 304.8 mm across the flanges, 95.25 mm wide, with a 50.8 mm hub hole, as published by Atomic Filament.", "Atomic lists this spool as 12 × 3.75 in with a 2 in hole without labelling which figure is which; following its 1 kg wording (diameter × thickness), 12 in is taken as the diameter.", "The file is a solid envelope cylinder at the outer diameter and width with the hub hole through it; flange thickness, core diameter, ribs and windows are not modelled.", "True size, no printing tolerance added. Only published numbers are used; anything not published is said so." ], "table": { "columns": [ "dimension", "value" ], "rows": [ [ "Outer (flange) diameter", "304.8 mm (12 in)" ], [ "Width", "95.25 mm (3.75 in)" ], [ "Hub hole diameter", "50.8 mm (2 in)" ], [ "Published size", "12 in × 3.75 in × 2 in hole" ], [ "Empty spool weight", "936 g" ], [ "Filament capacity", "3.5 kg" ] ] } }, "sheet_text": "Atomic Filament 3.5 kg spool — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/atomic-filament-3-5-kg-spool/ (sheet CC BY 4.0)\nBasis: Manufacturer specifications (Atomic Filament)\nCatalog version: 2026-10-20\n\nOverall (mm): length 304.8, width 304.8, height 95.25\n- The Atomic Filament 3.5 kg spool measures 304.8 mm across the flanges, 95.25 mm wide, with a 50.8 mm hub hole, as published by Atomic Filament.\n- Atomic lists this spool as 12 × 3.75 in with a 2 in hole without labelling which figure is which; following its 1 kg wording (diameter × thickness), 12 in is taken as the diameter.\n- The file is a solid envelope cylinder at the outer diameter and width with the hub hole through it; flange thickness, core diameter, ribs and windows are not modelled.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n\ndimension value\nOuter (flange) diameter 304.8 mm (12 in)\nWidth 95.25 mm (3.75 in)\nHub hole diameter 50.8 mm (2 in)\nPublished size 12 in × 3.75 in × 2 in hole\nEmpty spool weight 936 g\nFilament capacity 3.5 kg\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Atomic Filament: FAQ - Atomic Filament — web — Publisher's page; dimensions are facts — https://atomicfilament.com/pages/atomic-filament-faq\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/atomic-filament-3-5-kg-spool/index.json\nAPI: https://xemstudio.com/api/geometry?object=atomic-filament-3-5-kg-spool\n", "sources": [ { "publisher": "Atomic Filament", "title": "FAQ - Atomic Filament", "url": "https://atomicfilament.com/pages/atomic-filament-faq", "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": [ "filamentive-300-500-g-cardboard-spool", "filamentive-750-g-cardboard-spool", "filamentive-1-kg-cardboard-spool", "filamentive-refill-coil" ], "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": "What size is the Atomic Filament 3.5 kg spool?", "a": "304.8 mm outer diameter, 95.25 mm wide, 50.8 mm hub hole (12 × 3.75 in, 2 in hole)." }, { "q": "Does the Atomic Filament 3.5 kg spool fit a Bambu Lab AMS?", "a": "Bambu Lab lists the AMS HT for spools 197–202 mm in diameter and 50–68 mm wide; at 304.8 × 95.25 mm this spool is outside that range on paper, so plan on an adapter or an external holder." } ], "files_license": null, "offers": [ { "file": "atomic-filament-3-5-kg-spool-spool", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/atomic-filament-3-5-kg-spool/atomic-filament-3-5-kg-spool-spool.step", "stl": "https://xemstudio.com/files/hardware/atomic-filament-3-5-kg-spool/atomic-filament-3-5-kg-spool-spool.stl", "note": "Spool envelope Ø304.8 × 95.25 mm with a Ø50.8 mm hub hole (flanges and core not modelled)" } ], "markdown": "https://xemstudio.com/objects/atomic-filament-3-5-kg-spool/index.md" }