Red line laser module Industrial Laser Group Module adjustable focal length (point-2packs)

The media could not be loaded. The crosshair laser works great. I purchased a coin cell pack to run it and designed and 3d printed a mount to attach them to my laser engraver. It’s a game changer when it comes to lining things up before engraving.

The line can be focused across a large change in focal length. I thought at first the line was too wide then I discovered the focus thing, just like it states.It has a wide beam spread and can be seen on the wall but wouldn't be the best laser for this distanceIt is about 3/32" thick at 12' and about 1/16" wide at 2". You have to be pretty close to see the beam spread, less than 2'Over this it seems to be a very long line, under this you can begin to see the ends.I was going to use it to mark the cut line for my table say, it could be used for this if mounted above in the joists. If the line seems too wide, then use the edge of the beam as the cut lineI bought a much more expensive laser to mark the cut line and am using this inexpensive one to mark a danger zone where my hands will not pass.I bought 4 more as they are so cheap when bought this way.One is going above my metal lathe to indicate that the carriage or bit should not get any closer to the ChuckAnother is going on my bandsaw to extend the cut line forward. Not really needed but...a third I'm going to attempt to attach to my Horizontal bandsaw for a cut line. It's a bit annoying holding the saw off the metal and sliding the metal to the tape measure all with only three hands.

Not bad for the cost. Solid current drain from 4.0 V - 5.0 V is 15mA. But current draw goes up 25 - 35% below 3.7 Volt.

Cross hair lines aren't 90 degrees to each other. More like 85 degrees. While annoying, I only used it where the two line cross as a center point so it doesn't matter.

Knowing that I needed two, I bought the four pack and installed the laser crosshairs in a custom made holder. I installed one of each on both of my Longer B1 30 watt UV and 2 watt IR heads. I used the Gorilla tape that provides a great sturdy bond, that, although may be difficult to remove if needed, it can be removed without damaging the laser head. When using a laser crosshair, you will need to "calibrate" it to the actual point of the burn by setting the offset in LightBurn. Once dialed in, it will provide a perfect point of where the laser head will start the burn. I also added a 500 ohm pot in series with the plus 5 volts required by the use of a USB power cord, (plugged in a USB "cube" for power. This adjust-ability permits a lowering of the crosshair intensity that is necessary to see your burning starting point. The "full on" 5 volts will give a "too bright" crosshair that make it difficult to see your "aiming point"... AND, when you may install your own crosshair, make sure to place a small, inline connector, by the head, to enable you to unplug the laser from the machine power line when you change heads.. Designing, making, installing, and using these laser crosshairs was the very BEST modification I added to my laser machine....

Used to repair Delta miter saw. Line may be a very slight bit wider - but functions fine. For the price, very good.

Great

One that worked is great.