made a square, used grid array, tried various different settings each time, changed from padding to from centre, in preview tool path cuts some of the lines twice ?
if i put file into light burn, it doesn’t cross same line twice, i have done many a grid using light burn and it never goes over same line twice
I would assume MM would do the same paths as LB, cut time would be at least double, with all the double cutting.
You Have to select your shapes then:
Ungroup (Ctrl + U)
Break Apart (Alt + B)
Delete Duplicates (Alt + D)
Auto-Join shapes (Alt + J)
Group again (Ctrl + G).
By creating a grid array with squares, you’ve guaranteed the double edges. If you create two grid array with lines (one horizontal, and one vertical) you’ll guarantee single cuts.
This is reasonably important even in LightBurn if you’re doing cutouts, because while it’s true that the software will skip shared edges, it doesn’t plan the order in any specific way, so it is actually possible for it to cut a set of shapes that causes inner ones to drop. For example, it might choose to cut all of these first: