The Xtool F1 Ultra is a great laser.
Unfortunately, there are problems when aligning the RA2.
Especially in series, repeatable alignment is extremely important.
This alignment tool will solve the problem
The tool "extends" the Xtool's alignment guideline
In the Y direction you can simply place the RA2 and move it along the stop accordingly.
An alignment ruler has been attached to facilitate X alignment.
The fixed stop can be positioned on this ruler
This means that repeatable alignment in X and Y is no problem.
The alignment tool is manufactured using 3D printing.