Almost all 3D printers use Hot Extruders, and utilise moving parts, and without direct and constant supervision these parts could cause injury, all of Zinter's 3D printers feature a Semi-Enclosed print envelope, which ensures that when the door is closed its much less likely that wandering hands can access hot or moving parts.

For educational use we recommend the Zinter Pro II which features a unique locking door - ensuring that children can have all the benefits of access to a 3D printer - without being able to access the internal workings of the printer.