Files in the folder

You only ever need to double-click one file: the launcher for your system. The rest is the app itself.

The ones you use

start.bat

The launcher for Windows. Double-click it to start the app.

start.command

The launcher for macOS.

start_hidden.vbs

Windows: starts the app like start.bat, without showing the launcher window.

step2glb.bat, step2glb.command

Convert a STEP file that you drag onto them, without opening the viewer.

test-converter.bat, test-converter.command

Run the converter on a STEP file that you drag onto them and show everything it prints. Useful when a conversion fails and you want to see why.

README.txt

A short quick start, in plain text.

Folders the app creates

.venv

The app’s own Python environment, created on the first run. It can take up to about 2 GB. It is safe to delete: the launcher builds it again, which takes a few minutes. On macOS the folder is hidden in Finder, because its name starts with a dot.

inbox

Where STEP files are converted. The finished GLB files stay here.

The app itself

serve.py

The small local server. It hands the app’s pages to your browser and starts the converter when you drop a STEP file.

step2glb.py

The converter from STEP to GLB.

index.html, app-v2.js

The viewer: the page and its program.

holefill.js

The hole filler behind Fill holes.

mesh-worker.js

A background worker for Fill holes and Decimate, so the window stays usable while they run.

cloner.js

A cloner that makes linear, grid and radial arrays of a part.

vendor

The libraries the viewer needs, bundled so that it starts without the internet.

assets

The app’s icons, pictures and help clips.

manifest.webmanifest

What lets Chrome and Edge install the page as an app.

requirements.txt

The list of Python add-ons the launcher installs: cadquery-ocp, trimesh and numpy.

tests

The self-tests. See Self-test.

docs, README.md, CHANGELOG.md

Screenshots, the project’s description, and the list of changes in every version.