CO2 laser Autofocus probe tip

My Chinese C02 Laser arrived with the tip missing from the autofocus probe. Imagine my surprise when I errantly tried to focus it for the first time. 0_0

So I vaguely measured and drew this up in Tinkercad to play with while I wait for the replacement probe to arrive from china.

I had to scale the original STL file in Cura to be 5mm x&y, because I'm bad at measuring. I originally left the z-height the same (25mm) which is what you see in the images. Upon further testing I decided to reduce the overall z-height to 17mm put the body of the probe in a better position. I'll go back in and correct the original STL at some point, but for now, you'll have to scale it to fit your needs before printing.

Rather than threading the center hole, I opted to just heat up the mounting screw and press-fit it into the printed tip (being sure to not warp the print).

NOTE: It's extremely important that the printed part move completely freely inside the aluminum tube. Seriously, no friction w