About 3D Filament Guide

Filament density, spool length, drying

What this site covers

3D Filament Guide is a materials reference for FDM printing. It covers the physical properties that decide whether a print succeeds: how much filament is actually left on a spool, what a material weighs per cubic centimetre, and the temperature and humidity conditions each polymer needs before it goes anywhere near a hotend.

• Material properties: published density, heat resistance, toughness and weathering data for named filament grades
• Spool arithmetic: gross versus net weight, tare subtraction, diameter and remaining length in metres
• Filament drying: manufacturer temperatures, cycle times, spool heat limits and moisture symptoms
• Storage after drying: dry boxes, desiccant and protected feeding during a print
• Filament selection and brand comparisons: documented grade differences, diameter tolerances and spool specifications
• First-spool choices and material suitability for indoor, functional and outdoor parts

Start with the filament weight and length calculator, the filament drying chart, or the PLA and PLA+ grade comparison. The focus is the spool and its material: a brand comparison explains published filament specifications, and a drying guide follows the filament and spool manufacturer's limits.

8 articles are published so far. New ones are announced on the RSS feed.

How these articles are produced

Articles here are researched from primary sources: vendor and project documentation, published standards and specifications, research papers and preprints, and measurements published by whoever took them. Drafts are produced with AI assistance and then edited against those cited sources before anything is published.

No article on this site is based on first-hand testing in a private lab, and nothing here should be read as a measurement report of its own. Where a number appears, it comes from a source that is named, so you can check the original instead of taking this site's word for it.

Everything is published under a single editorial byline. That byline is a publishing identity for the site, not a claim about a named individual, and it does not carry professional credentials.

Corrections

The sources on each article make its claims traceable. Corrections should identify the affected page, the statement and the supporting documentation. Substantive corrections are made in the article itself, with the source attribution updated.

How this site is funded

As an Amazon Associate, this site earns from qualifying purchases. Articles with Amazon affiliate links disclose them at the top. There are no sponsored posts, no display advertising and no paid placements, and no vendor has paid for or previewed coverage here. The disclosure page sets out the detail.

Publisher

Site: 3dfilamentguide.com
Published by: 3D Filament Guide Editorial

See also the privacy policy, the terms of use, and the editorial disclosure.