I’m not sure if this is the right place, but I’m looking for some help with my laser settings… Yall please let me know if there is a better spot for this.
I’m playing around with a new fiber laser (ComMarker B4 20W). I have the rotary set up and am working on some tumblers. I can’t seem to get a shinny brushed finish with my etches on the rotary.
This is a nice value, but it really depends on your lens, since the spot size varies with the lens.
I believe your split size should be a multiple of your interval… You want it to rotate to the next scan… after three moves you will be 0.06 and your interval is 0.05…
The bigger your split size usually relates to a faster job… However you scan speed is rather low, so I don’t know how much of a difference that will make.
Yes… there is little depth of field with that short of a lens.
You may want to increase the split size… if you pick an interval of 0.05, you’d probably be safe with 10 times that or 0.50 split size. I think mine is about 20 times larger than my interval… Mine was in focus also…
Using this calculator and these values with a F110mm lens - depth of focus is only 0.762mm… at 1mm you’re out of focus… assuming similar values from the source.
Do you know what lens he used on the machine he was using?
You might do better with a less out of focus … ?
If you have a test mug… I’d vary this a bit and make it less out of focus… just a suggestion… Alex is usually pretty close… if he’s using an F110mm then you may be fine.
Hi there redbeardops! I appreciate the open discussion here. I recently (2 days ago) got into my first laser machine. I’ve tried every setting under the sun and ruined a handful of cups already but this is cleaning up my work quite a bit. I’m really stunned by the fact that 100% power doesn’t remove the paint like 25% does. I have a lot to learn here!
**edit - I think something is wrong with my laser after watching your video. It doesn’t remove any of the coating even with multiple passes.
