I don’t think this is the case here. If this was occurring, we’d see a duplicate width burn equal to the text width … we don’t.
This looks much like we’ve seen before with an lps issue. It isn’t exactly the same, but it appears much more like this in the 2nd photo.
In this link, you can see a hardware failure that @ednisley caught on his scope. It clearly shows it lasing when the input controls to the lps have disabled the laser… Clearly a bad lps.
How does this fit your scenario?
Assuming a dc excited co2 machine…
If you look at your lps, it will give you some kind of response specifications… All of the ones I’ve seen are 90% rated voltage at <=1mS. You’d have to know how fast yours is to compute how fast it can toggle on and off.
If you want to stay within the actual limits of the machine and use the 1mS as a response time then …
With a 1mS response time, the best resolution you have at 1000mm/s is 25.4 dpi. At this speed, you can only toggle it off or on over a distance of 1mm…
500mm/s you can double the resolution to 50.8 dpi - at 250mm/s it’s again doubled to 101.6 dpi…
This is beside the fact that with a 0.20mm laser kerf, you’re back to 128 dpi as a maximum anyway…
