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Spool fit checker

Use the device’s maximum supported spool dimensions, not its outside case dimensions. All measurements are in millimeters.

Your spool
Device spool limits
Outside diameterOverall width

Check your dimensions

Enter four measurements to see how much dimensional allowance remains.

What this checks

Diameter and width only. It does not establish thermal suitability, roller or hub compatibility, multi-spool spacing, lid closure or an unobstructed feed path.

How to measure a spool