We have a combination of STL and PTS files that describe a cutting line for a 3D Printer and a laser cutter for dental products (retainer / aligner).

These files are auto-generated by an AI Service…

However they are not always perfectly aligned and we want to allow the user to make smaller modifications to the PTS object in a three.js viewer.

There is a screenshot attached to show what I mean. Essentially you should be able to move the blue line with the mouse, while it should remain positioned nicely with the underlying STL fille.

The deliverable will be a Prototype, maybe a simple HTML page + JS file. A full integration into the application is NOT required