I am absolutely thrilled.
Myself and a friend bought 14 sheets of XPS 250 cm * 60 cm * 3 cm.
We looked into getting it laser cut, no good the material retreats from the cut surface. We looked into water jet cutting. Very powerful, but very slow and hence expensive. We looked into CNC routing, There was a significant kerf and so a lower yield also quite expensive. Finally we found a guy doing CNC hot wire cutting. Perfect.
So now we have 602 hexes 10 cm a side 20 cm point tip to tip. We also have 252 half hexes which are just as useful. They are perfect fits and have precise geometry.
The raw material cost 360 AUD
Transport between the supplier and the cutter 100 AUD
The cutting 264 AUD
That works out to 99 cents for each hex if you count the half hexes
Now we are going to plan out the pieces to make hills, river valleys, roads etc.