OMTech CO2 Laser Alignment Tool for Laser Engravers, Precision Red Laser Pointer for 50W 60W 70W 80W 100W 130W 150W Laser Engraving Marking Cutting Machines, Visible Laser Path Guide

This fits perfectly with a 40"X63" 150W monport head. I am not sure why there are so many reviews claiming it is too dim. That is simply not the case. The laser is very bright, and appears as a very small focused dot as a laser should... I would suggest you put new batteries in after purchase, as most items shipped with coin cells installed are going to be partially depleted upon arrival.

I picked this up for a red/black OMtech 60w laser and thought this would work as it says it should.It does not fit, the red light laser threads are 21.73mm wide while the air nozzle where this should thread into is only 19.50mm wide.I am going to try and come up with a 3d printed solution to connect these but Omtech should really stop advertising this as working with their 60W as it does not fit.

I originally thought this tool didn't fit my AF2028-80 machine, but I had at some point changed the lens to an american photonics lense and realized that it was the new lenze/nozzle that wouldn't work. I found my old original nozzle assembly and was able to thread this tool right into the old tube. I'll just leave the tool screwed into my old original tube. Now it's ready to go into whatever laser I need to get aligned. So far, I'm very happy with the additional help I'm getting from having this reverse laser to get my mirrors aligned.

I'm sure this is a fine laser but it would not stay more than about 5 mins during the alignment of our new laser engraver and then the light would just fall off to nothing (can't be seen). We thought that the battery was at fault so we ordered more of them from amazon, only to find that they did the exact same thing. So back this thing goes.....and then we ordered a green light LED laser only to have that not work properly so we are getting a replacement for that as well. We did order a larger more heavy duty laser which we had to build an adapter for on our lathe which does work quit well. As for this item we sent it back for a refund and again, I'm sure it is a good laser diode, we just didn't have good luck with it.

Omtech decided to cancel my order several days after I placed it. This is an item I was really looking forward to for my laser. But I guess I am not allowed to have one.

The low reviews seem to be because it did not fit their systems. Also, the battery included was dying, so the red light wasn't too bright until i replaced it (1632 3v). After replacing the battery, aligned my mirrors in less than 5 min. DEFINITIVELY worth the cost vs manually aligning the mirrors.Also, shipped very fast, (received in 4 days) even though Amazon noted a 12 day delivery time.

The battery power might not be enough. laser fades out after a few minutes. Replaced battery sit had same issue. You will need to be able to adjust your laser tube, to match the alignment.

The laser turns on and off constantly and isn’t accurate.