Box making software

I use Packlib, as it's what came with my Summa. I think Flexi has one that looks decent too.

 

I've used this a few times, it works great! I make boxes for sample kits I make for out wholesale clients

https://www.templatemaker.nl/en/

Here is a picture

 

https://www.engview.com/en/engview/products/Adobe-Illustrator-Integration/

not sure if this works for you, it is a plugin for illsutrator

 

We have Engview. It's not just a plugin it's an expensive complicated packaging and display design app.
It does come with a handy library of resizable designs we use though.

 

Zund has/had a software package for making boxes/displays. Its pretty pricey but well built. We had it for a year with our Zund and liked it but just did not use it enough to justify the yearly fee.

 

I recently came across this website and have created a bunch of unique boxes with a laser cutter and UV printer
https://www.diecuttemplates.com/

 

Have you tried with ZDC from Zund yet? It's plugin for Adobe Illustrator and I think it's suitable with you.