ELEKS MILL - Laser not working
@nottingham82 Thanks for your reply
I saw you video in T2L and I will give it a try.
Concerning the focus, I moved the laser up and down on Z-axis, with a paper underneath, and tried to focus, but with no success. There was no way to get anything on any material at any hight....
But you say, if the laser comes on, it is working, it is just a question of focus and (maybe) power, I guess...
@fvt yes provided your lens was put in right in the factory
OK, here we go...
what I did.
I opened the housing by unscrewing the blue metallic bottom where the lens is in.
The lens in the brass fitting was loose, meaning the thread is not tide enough to hold the brass screw with the lens in place (or at least not for long).
Now what I did, was do leave the lens in a defined position and I screw the blue housing part in and out until I got the most small focus I could established.
With a power of 30 I can burn carton very easily, but the distance from the housing to the object is approx 2cm at most.
That means, the laser is working at least.
Now I have to spend some time to get the focus right and fix the lens at that position.
Any hints how to speed that up that process?
@fvt nope... most of the eleks lasers have an adjustable focus so you dont need to disassemble them to mess with the focus. If you do come up with a better plan let us know!
once you have a distance from the laser you like for a focus, you could make a guide out of a piece of plastic then just set your z height to that height using your guide stick.
Ok, got it to work... fixed the lens with some teflon tape to stay in place.
Engraving wood works cool, have to get used to the parameters, speed, and power, but that is ok
How do you guys cut eg. 3mm acrylic glass?
Because of the depth, the focus of the laser should move down the material after each step.
Or do I set the focus on the level, the material is cut thru?
@fvt i have been able to cut 3 mm without a problem or moving my laser down. But I have a 2500mw laser. I can cut 3mm birch in 6-9 passes. Acrylic takes less but some colors can't be cut at all.
This post is deleted!
@mrmister on top. I'll post a list of colors when I get home. Slow speed makes a wide melty swath and fast make a thin shallower swath. So different speeds have different looks. You can also engrave on acrylic after you cut it.
here are the acrylics list. It was compiled by ralph of ben cut laser but I have done several and found the list to be true.
The 4 digit numbers are the ePlastics Reference Numbers
ORANGE 2422 - Can cut in 4 passes.
Light Purple 1020 - Cannot cut.
Dark Purple 3730 - Cannot cut.
RED 2423 - Can cut in 3 passes.
DARK GREEN 2092 - Can cut in 3 passes.
Light Green 2111 - Cannot cut.
Glass Green 3030 - Cannot cut.
Dark Blue 2424 - Cannot cut.
Light Blue 2069 - Cannot cut.
Yellow 2208 - Can cut in 3 passes.
Now there may be ways around the ones that are listed as cannot cut. Paint on the surface or nail polish could change that. I'll have to try it.