I have my students create their cars in AutoDesk Inventor. There is a problem when the file is imported to the Carvewright software and the tooling path is made. 1)Sometimes the tool starts cutting through the jig. Once it gets above the height of the front tip/or nose of the car it starts cutting through the jig. 2) Sometimes the first side is carved, then only part of the second side is carved and the machine says it has finished. Not indicating any problem.

I have made sure the machine and jig are square. I think this is a problem with the software making a tooling path. Is there a better program I should be teaching my students to create the stl files. We have access to AutoDesk programs?

I have 71 students and we only got 3 cars cut. Along with cutting part of the jig.