I think these machines are fascinating and I see them being used for model plane wings but what is their main purpose. Lost foam casting? What are you using yours for?

Construction industry - creating columns, column caps and facade decoration.

Trade shows - large scale models of products, decoration

Theme parks - scenery, props, etc.

Sign shops - Monument signs, Letters, Decorations using highly compressed foam, Awning props

Box manfacs - Packing cores for customer samples

Rental companies - Wedding arches, Party planner designs