PRIVACY & LIMITATIONS

Sine-bar setups stay local. No measuring equipment is connected.

Center distance, angle, height, and uncertainty inputs are converted only in the current browser. SineBar connects to no sine bar, comparator, gage-block database, or calibration system and sends no measurement verdicts.

Ideal two-cylinder model, not a calibration result

The tool uses sine geometry and first-order small-uncertainty propagation. It does not verify surface or cylinder flatness/equality, deflection, workholding, contact, cosine alignment, thermal gradients, block certificates, or instrument calibration. Sensitivity grows sharply near 90°.

URL fragments pass numbers only

A fragment imported from BlockStack is not sent to the server, but carries only a height number—not certificates or validity. Formal measurement requires traceable equipment and a reviewed procedure.

Advertising and local preferences

This page uses Google AdSense Auto Ads. Google may use cookies or similar technologies under its policies. .miluland.com domain cookies sync language, theme, high contrast, a six-item recent-tools list, and up to 16 favorite tool IDs across MiluLand sites. These values never contain inputs, files, or results; the current site also keeps a local compatibility copy.

Local report studio

The report studio reads only the workbench’s currently visible result summary for local preview, Markdown copy, JSON download, printing, and a SHA-256 fingerprint. It never reads input controls or original files and is not persisted unless you choose to download it.

Optional local checkpoints

Only when you explicitly choose Save does the tool write the visible result summary, time, and optional short label to this site’s browser storage, up to five entries. Imported files and input-control contents are never stored; you can export, restore same-tool checkpoints, or clear them at any time. Imports are limited to 128KB and validate the tool, timestamp, summary, and label of up to 80 characters.