K40 china laser cutter align tool

Tool to check if your laser hits the middle of your lens.
This can help you align the machine better, to know where the beam hit your lens. If it hits on the edge anywhere its time to fix the alignment.

Contains both STL file for 3D printing, aswell as DXF files if you want to cut it in acrylic - see instructions how to use below.
STL file is a bit rough at the moment - changes coming up.

Instructions:
1: Cut the file in 2mm (or what you have) acrylic/wood, or 3D print it
2: Glue the