Optimizing sequence of passes for small cuts

[Milliampere (Henning Kaltheuner)]

When I cut 6.5mm beech plywood, I usually need 5-6 passes and focus my 10W laser on the centre of the wood, so 3mm deeper. However, when the forms are very small (for example many holes with 6mm diameter, it will always do the 6 passes for each hole and then move to the next hole. This burns the wood much more than if it would do the first pass for each hole, then second pass for each hole (…) and so on.

It seems there was a thread about this already in 2021:

Passes in optimization settings

Hi, I am surprised to see that passes are not taken in account in optimization settings. If, say, I have 5 shapes and need 3 passes to cut, it always burns shape by shape, doing all 3 passes for each shape. There is no way to tell LB to do pass 1 for all the shapes, then pass 2, etc. For shapes with small details this feature would make a huge difference. Or is there a way to achieve this that I didn’t found ?

However, I find the suggested solutions very cumbersome and prone to errors.
Has this feature maybe been added in the meantime and I can’t find it?
‘Optimiziation by passes’ - or so?

[Theozefrench (Thierry)]

Unfortunately, optimizaton settings won’t help you here.
Fortunately there is a workaround : make a layer with the right settings and one pass only, and duplicate it in as many sublayers as you need passes.

[parsec (FerAS)]

Check here;

Lightburn Super Trick

Hello to all. Instead of making multi-pass cuts in intricate details where laser burns the same segment over and over again and that sometimes leads to material burn… You can automatically make 1 pass cut plus 1 pass cut plus 1 pass cut and so on to let material cool a bit. Using Lightburn sub-layers like in the enclosed example. It take a few seconds more but gives much better results. At the end of the job start the job again (3 times in this case) or use cut job with 9 cloned sub-layers, …

[Milliampere (Henning Kaltheuner)]

Ok, I am still a Newbie and havn’t understood the concept of Sublayers yet. Now, this makes sense and I’ll try it later.

Thanks guys!
Henning