Nesting Optimization

[rpajounia]

So im currently using the lisp attached to nest sizes. but once its done nesting sizes i have it cycling through a bunch of default sizes to fill in the extra material, is there anyway i can write a code that will figure out what sizes will fill in the best without trying to nest it and seeing if it fits or not?

[john.uhden]

@rpajounia ,

I've written a nesting program for vinyl swimming pool liner panels.  Its purpose is to use the shortest length of vinyl on a 6' wide roll to fit all the panels within.

My guess is that you are also trying to minimize scraps by using them for smaller useable shapes.

Your request seems like a daunting task for me, unless maybe all the shapes are similar, like triangular, rectangular, circular?

Could you maybe save a folder of scraps to see if any shapes of future projects can fit inside?

Or, can you recover some costs by recycling the scrap shapes?  We can do that with leftover vinyl, but it would not be worth the effort because of the numerous folders we would have to create for all the different printed material patterns that the vinyl manufacturer will probably discontinue next year.

[rpajounia]

unfortunately my sheets are premade to 72x120 and they are hard to recycle and reuse. pretty much i have my pieces that need to be nested and then from the list of 24x72, 24x84, 24x96, 24x120, 30x72, 30x84, 30x96 find which piece will best fit with least amount of waste on the remainder of the sheet

[john.uhden]

@rpajounia ,

Haven't we discussed this same topic earlier (2023)?

Didn't you get a solution?

[rpajounia]

I did ask earlier but no solution was ever provided 

[Sea-Haven]

No need for new post could have gone back to original post and asked for more help, have you looked at professional nesting programs ? Professional is code for need to pay.

[rpajounia]

i have but unfortunately i created my own script just because my script has different functions as well that professional programs dont have. I am willing to pay a skilled programmer if they are willing to help with this task they can always message me

[rpajounia]

hoping to be more informative on this next message so that people understand my question. 

i have a sheet of foam that is 72 inchs wide and 120 inches long. Im cutting 1 piece of 24x24, 1 piece of 30x72, and 2 pieces of 24x72. These units can be twisted and turned to fit on the sheet of foam.

what i need now is a script that will check what other sizes and quantity should i add to minimize my material waste from the list below
24x24, 24x72, 30x72, 30x84, 24x84, 30x96, 24x96, 24x120