# Extrudial: Print Tuning — Track Filament Calibration

> Track Filament Calibration (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/extrudial-print-tuning/id6792496062 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Utilities, Productivity
- Price: $1.99 (on sale, was $2.99)
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2026-07-29
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/extrudial-print-tuning/id6792496062/reviews.md

## What is Extrudial?

Extrudial is a single-screen calibration workbench for FDM 3D printing: it turns wall measurements into a flow setting you can defend.

Everything lives on one focused screen. A chart plots observed wall thickness against each tested input, with a reference line at your target line width. Three live gauges update as you move the sliders: volumetric flow in mm3/s (layer height x line width x print speed), a corrected flow percentage computed from your measured wall against the target, and a repeatability score derived from the spread of trial errors. The Machine envelope panel holds four sliders — print speed, layer height, line width, and measured wall — and the Profile decision panel reports the best tested input plus a plain verdict: Promote profile, Conditional, Retest required, or Flow-limited.

FEATURES
• Live volumetric flow estimate from speed, layer height and line width
• Corrected flow percentage from a single measured-wall value
• Repeatability score computed from trial error spread
• Trial chart with a target reference line
• Clear promote-or-retest verdict for each profile
• Trial-type selector: flow, temperature, retraction, pressure advance

PREMIUM BY DESIGN
One-time purchase. No account, no ads, no analytics, no tracking. Everything is computed on your device and works fully offline.


## Version history (last 2 releases)

### 1.1 — 2026-08-31

Version 1.1 is a focused redesign: Extrudial now opens directly into a single fast calibration workbench. Move the speed, layer height and line width sliders and watch volumetric flow update live, enter your measured wall to get a corrected flow percentage, and read a clear promote-or-retest verdict backed by a repeatability score.

### 1.0 — 2026-07-29

No release notes.

## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*