Fiber Laser Lense Focus Tool

An adjustable and customizable tool is used to focus the F-Theta lens of the Fiber Laser Marking Machine.
I made it for my Fiber Laser having a 110x110 mm working area. The focal length of my laser lens is about 166mm. So I made this adjustable tool that can be adjusted between 148mm and 178 mm.
You can also edit the SolidWorks source file (Link given below) to extend the range according to your laser machine's lens focal length.
This tool can also be used with CO2 laser cutters to focus the cutting head.

Source Files Link: https://grabcad.com/library/fiber-laser-lense-focus-tool-1

M3 Screw Knob File: https://www.printables.com/model/732566-thumb-screw-knob-for-socket-head-screw-inch-681014