Im aligning the mirror on my new machine.

Im aligning the mirror on my new machine. I’ve got the first one that sits next to the tube shooting an accurate beam all the way down the Y axis rail… however the second mirror is shooting a beam more like a scattered buck shot beam… any help?

Is the 2nd mirror dirty? I’d suggest having a look at that & giving it a clean off either way. Might be the cause of the scatter.

yep it had tape residue on it!