If you’ve ever cut a large number of parallel lines, you might notice that the laser cuts, for example, left-to-right and when it ends, it travels across the bed to start the next line rather than just dropping down and running the next line right-to-left. The reason is that all vectors have a path direction (a beginning and an end).
In this screenshot, I added arrowheads specified to the end of each path, which shows the direction. As you can see, all of the arrowheads are either on the right or the bottom, meaning the paths run left-to-right or Top-to-bottom.
To increase the efficiency of cuts, you can select every other path your layers palette and then go to Object > Path > Reverse Path Direction (in Illustrator – Inkscape should also have a reverse option under it’s Path menu), as indicated in this screenshot:
After the appropriate paths are reversed, you’ll notice that the arrowheads now create a path for the laser to cut down, then the next one up. Or, cut to the right and the next line to the left.
Cutting at a slow speed of 180, I was able to knock one minute off of the cut time from 17:58 to 16:58 (a total of 534 inches).
Just be sure to remove the arrowheads before printing (they show up as a separate option of dots in the UI).
(edited with author’s permission. @UrJac was here. )
I saw that. (@Jules)