Laser: True grayscale instead of dithering?

[bobby4718]

Snapmaker does use Marlin, that is correct. I haven’t tried @MadHatter 's method, so I’ll let him comment on the rest, but if you are looking for “true” grayscale, I would suggest looking at the following thread:

Laser Pause While Changing Power

I think this issue was briefly mentioned in here: Laser: True grayscale instead of dithering? but it’s really causing a problem for me at the moment. @MadHatter, did you ever have any revelations on getting the machine not to stop? While doing grayscale images that continuously change the laser power travelling at a constant speed, every laser power change causes the machine to come to a brief stop. This wrecks power regulation. There has to be a way to modify the Marlin core so the motion pla…

It seems that the problem is that Marlin stops movement when it changes the laser power (as seen in MadHatter’s failed test where only the borders were engraved). @brent113 and @MrWorf have made modified firmware that enables a relatively new feature in Marlin that allows the laser to continue moving while changing power, allowing for more pure grayscale.

I would recommend checking out the thread if you’re interested. And of course, any firmware downloaded and installed from a third party is at your own risk.