Screw Thread Checker

I made this for FRC Robotics teams. These are the most common screws we use on our robots.

Make 2 fill them both with nuts. Then take one and put screws in from the bottom. Then you have one to check screws and one to check nuts.

When I used a 0.6 nozzel the text would not come out good. 0.4 worked great. Sharpie for the text.