Assembly and interference detection

Check the product, not just the part.

A multi-solid STEP import splits into independent parts via the CAD kernel itself, not a mesh heuristic. Every pair close enough to matter gets a true boolean intersection: if two solids overlap, Buildable reports the exact overlap volume in mm³. Pull the explode slider and each part comes away along the axis it would really be removed on, scaled to its own size: a shaft slides out along its own axis, a cover lifts along the axis its bolts run down, and anything whose shape does not say fans outward from the assembly's own centre.

Real interference, not a guess

A true boolean intersection between solids, reported as an exact overlap volume. Two parts that only touch report zero.

Scales to complex assemblies

A bounding-box pre-filter skips the expensive check for every pair that clearly cannot overlap, and the remaining pairs are shared across several CAD kernel instances. If a dense assembly still outruns the time budget, Buildable reports how many pairs it checked rather than calling the rest clean. Current cap: 150 parts.

Never a blank wait

The part list and exploded view render the moment parts are split out. Interference keeps checking in the background with live progress.