>I meant that 12mm sheets are still more costly than 6mm sheets but they are less than double the price.

How far into the thick sheets does this go? Like are 3" H80 even cheaper per inch? Or is there a sweet spot? Probably better to ask Rob for the pricing situation. Rob, how does this work?

Looking at something like the following. Skip down till you get to the table hotwire machine.

https://www.flitetest.com/articles/hot-wire-foam-sheet-cutting

So this should be able to make thinner H80 sheets. Assuming you are gonna be scoring/routering and holing both sides of the sheets for infusion anyway, I cant see hot wireing bothering the surface to much. But I have no idea.. Anyone got an idea?

>So if you could cut your own then you would save money. Less the wastage from the cutting.

The hot wiring should not lose much material?

Regarding toxins https://en.m.wikipedia.org/wiki/Phosgene

That's not funny stuff. 0.1 ppm exposure limit and you can't smell it till 0.4. No breathing filter available (bypasses activated carbon). One is gonna want a big fan blowing past you and over the work and away into open spaces. Perhaps even an open jar of ammonia (neutralizer) in front of the fan.

One of this conversations premises is that a different, cheaper core could be thicker. How does core thickness effect the flat infusion? I assume you have to taper the edges down to level with the bottom glass fiber.

Is that harder as the core gets thicker?

Does that mean the whole premise of a thicker foam core makes the infusion harder generally?

I see some vendors are making multi density foam cores, where the outer layers have more compressive strength, and the fill a center core with a lighter core. Which is neat, cause its the same engineering math all over again for the light core supporting the heavier core. Seems we could diy that. Thin sliced H80 over whatever grade XPS is appropriate.

But is this practical in an intelligent infusion layup?