Form1/1+ Laser run path calibration cross

I started fixing Form1/1+ and Form2 3D SLA printers in South Africa under BuildVolume. Today I'm making videos on YouTube about fixing 3D printers, and how to design for 3D printing using only FREE software such as Blender, DesignSpark Mechanical etc...

This model I created to test and adjust Form1/1+ SLA 3D printer's laser run path on the Galvo mirrors.

Here is a link to the video tutorial: https://www.youtube.com/watch?v=0wGqreky8ss