Date	Photo	Notes	Logged By
5/18/15			Brant
5/18/15			Brant
5/21/15		Topside of lens	Brant
5/21/15			Brant
5/26/15			Brant
6/7/15			Brant
6/26/15			Brant
10/03/15			Brant
11/24/15	No image	Shane reported as cloudly	Brant
12/12/15

The yellowish blobs on the lens are where the coating has been scrubbed off the surface of the lens through improper cleaning. Only 50/50 pure alcohol/distilled water, or laser-champion-approved lens cleaning solution should be used. When you clean the lens, use a sterile q-tip (don't set it on the table or any other surface) and make sure that you aren't dragging soot from the outside of the lens over the middle. Only the middle ~3mm of the lens is actually used to focus the laser. Almost no pressure is required for cleaning. The soot should come right off in a single pass with no scrubbing (do not move the q-tip back and forth.) Scrubbing causes the scratches and missing coating you see in the photo. -Tony W | Brant |

12/12/15		Center of the two mirrors before they were cleaned. The white residue is from something creating smoke that is accumulating inside the cutter. This most likely happened when someone forgot to turn on the exhaust. Smoke should never reach the first mirror when the exhaust is turned on. The gantry mirror might accumulate soot when cutting materials like white-dyed plastic that give off a lot of particulate when cut. Please check after cutting if your material seems like it is giving off more smoke than usual. -Tony W	Brant
12/12/15		See above.	Brant