# v0.1.0 — First release: STEP viewer with measurement & assembly checks

## ✨ New features

**Open your CAD files**
* Import STEP, STL and DXF — several files at once. STEP assemblies show up as a tree where you can hide/show, recolor or zoom to any part.

**Measure**
* Point, distance, edge length, face, circle (radius/diameter), angle and face-to-face distance. Values come from the exact CAD geometry wherever it's available.

**Check how parts fit**
* Two-point align (move), three-point align (rotate + move), rotate 90° about an axis, and an interference check that reports overlaps or the minimum gap between parts.

**More tools**
* Section view, mm ⇄ inch switch, export measurements to CSV, and save a high-resolution screenshot.

## 📦 Downloads

Source only — no prebuilt binaries were published for this version. For a ready-to-run build, grab the [latest release](https://github.com/ETWen/STPViewer/releases/latest).

## 🔗 Links

* [Architecture](https://github.com/ETWen/STPViewer/blob/main/ARCHITECTURE.md)
* [README](https://github.com/ETWen/STPViewer/blob/main/README.md)

**Full changelog:** [commit history](https://github.com/ETWen/STPViewer/commits/v0.1.0)