Observed arrival · 2026-10-22

Torsio Engineering’s machine-element calculator

torsio.app Visit website

Editorial interest 84/100 Selection signal · not a rating of the site

A browser-based tool for preliminary sizing of transmission parts and structures, with calculation reports and CAD drawings.

Landing page captured for the 2026-10-22 issue.

For: Mechanical engineering students and machine designers
Worth noticing: The site reports 387 automatic test cases and 13 fully reconstructed exam problems for shaft calculations.

Field notes

The transmission workflow starts with motor power and speed, then links belt, gear, shaft and fit calculations while checking consistency between stages. A sample shows a Goodman fatigue result and a warning about a pinion that is too thin below the tooth. The site says its methods are checked against 387 automatic cases and 13 reconstructed shaft exam problems; those validation counts are site-reported.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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