So I have the new air assist head from LO along with 22mm mirror and 18mm lens - anyone know approx how high off the stock bed the best place height would be for optimum results? As a test I ran the ramp and found it to be a finer beam closer to the nozzle - but a hotter beam back at the original deck height.
I also examined the old mirror and lens and found the old beam was hitting the side of the mirror and off center on the focus lens. You may want to check yours !
The specs high would be on your lens, 50.8mm. Still the ramps test is the best
Thanks, but its confusing I expected that the hotter beam would be closer to the 18mm area and not the 50mm area
The best value is where the spot is more concentrated and thus where the focus is. When you says hotter you means a thicker line? If thats so then that where is unfocused, could be hotter but will not cut the same
Ah - yes that’s what I meant - thanks I see how to read it now.
Could you explain the ramp test? watched a video and all they was laser starting at bottom and going to the top. Not sure what to be looking for.
@John_Austin sure. Draw a very thin line, maybe 0.025mm thick. Then place it on the center of your software. Get a piece of Material, I prefer wood and place it so when you run the laser it will go left to right. The most important thing is to elevate that piece of wood on either left or right, like a ramp. This ramp should just fit between the bed and the laser head. Run the line and inspect. You are looking for the thinnest representation of the line burned. That’s the sweet spot ( focus) then you will need to find a way to measure from the bed to the top of the material you want to cut/engrave to be the same distance as off this thin part of the line. Let me know if it’s clear now
@Ariel_Yahni_UniKpty
Thanks for the explanation. That helped a lot on understanding what to look for.
I just order the laser and will be here this weekend.