Atomic Filament 1 kg AMS-compatible spool — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/atomic-filament-1-kg-ams-spool/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Atomic Filament)
Catalog version: 2026-10-20

Overall (mm): length 200.03, width 200.03, height 66.68
- The Atomic Filament 1 kg spool measures 200.03 mm across the flanges, 66.68 mm wide, with a 50.8 mm hub hole, as published by Atomic Filament.
- Atomic publishes the size in inches (7 7/8 × 2 5/8 in, 2 in hole); the mm values are direct conversions.
- 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.

dimension  value
Outer (flange) diameter  200.03 mm (7.88 in)
Width  66.68 mm (2.63 in)
Hub hole diameter  50.8 mm (2 in)
Published size  7 7/8 in diameter × 2 5/8 in thick, 2 in arbor hole
Empty spool weight  260 g
Filament capacity  1 kg

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Atomic Filament: FAQ - Atomic Filament — web — Publisher's page; dimensions are facts — https://atomicfilament.com/pages/atomic-filament-faq

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/atomic-filament-1-kg-ams-spool/index.json
API: https://xemstudio.com/api/geometry?object=atomic-filament-1-kg-ams-spool