Spent some time with the lasers again. Marlin firmware did a major laser revamp so It was needed.
Not all that much has changed from the last time around.
It still looks like 22 mm/s is the max on a rambo, for a raster burn. Not going through all the tests for the SKR since I assume it has not changed either.
New modes were talked about, here, but it seems only “M3 I” works. I tried M3, M4, and M4I, and they do not work to the best of my knowledge.
So the big change is still use inline commands, but your starting Gcode will need to contain M3 I S0 to make it all work, and end with an M5.
The new firmware settings are in the nightlies now, and I will do a new “stable” release pretty soon. Oh and I did not enable M106/7 seems it messes with the other fans as well.
Opinion - vector works well at higher speeds, raster is pretty limited in speed, while it does look amazing. Now is it very slowed when compared to what a GRBL (maybe even RRF?) board can do? For perspective, my 2.5w laser is running at 4.5% min to 28% max to get decent lights and darks (60 shades of gray out of ~254). The CNC’s are both capable of far faster speeds than 22mm/s with only the laser on there, so we are firmware limited.
Looks like it might be time to put serious time into finding a new standard board with some other firmware.
If anyone knows how I might improve these numbers I would love to hear it.