Constant Velocity Image rastering.
I am currently working on a firmware package that will allow you to do high speed high detailed rastering using only an Arduino controller.
I have been discussing some of these issues with the community on another thread.
https://plus.google.com/117537980354391774283/posts/j711CAv2tN4
In the mean time here is some video and the resulting image this was about 8 min in all and the image is 100x84 mm
I’m in !
Me too!
the grbl 0.9j in my repository allows that (with mods by Nick Williams) and the official beta release of grbl 1.1d allows that. The beta was published 5 or so days ago and has a specific laser mode for engraving.
(THIS IS A BETA RELEASE by the original grbl developers!!!)
Oh that was dumb. I didn’t see, Nick, it was your post!
@Timo_Birnschein Again this is at 200 mm sec with no jitter. Can the new grbl go that fast?? The whole peace was 8 minutes. Also the laser is firing at full power.
@Nick_Williams That is remarkable! I’m eager to try this as well! 
Check This out
Epilog Constant Velocity running at 1750 mm/sec
@Timo_Birnschein Hey I just downloaded your K40 Laser board from Git Hub. I have an othermill a small CNC designed to cut circuit boards. It is not reading your board file double checked with my own files and they are read just fine. Any ideas??
@Nick_Williams hm… I’m using the free version of the latest eagle layout tool. So it’s a regular legal version of the software. I don’t know what might be wrong. 
I know Othermill and as far as I remember from a year ago, the software was a bit buggy sometimes and only really usable on Mac. Did that change?
It’s been pretty stable for me I am not sure what version of Eagle I have but I know its about 2 1/2 years old so not sure. Tonight I will try and open your board file on my mac and re-save that may make a difference??
