threejs + collada tool example

This is based on https://spatialtoolbox.vuforia.com/docs/tutorials/three-js-tool-tutorial so read that first if you haven't.

The key addition to that code is customizing the content in the scene's container object:

const loader = new ColladaLoader();
loader.load('./assets/export.dae', function(collada) {
  containerObj.add(collada.scene);
});

Note that depending on your model you may have to adjust collada.scene.position, collada.scene.rotation, and collada.scene.scale.

Exporting from Onshape

Right click either your part or assembly and select "Export." You can now refer to this downloaded file in your tool.