Hi, I mill site models for an architecture firm, the scale is 1:500.
The foam is white and closed cell, and have a density around 40kg/m3,
the finish is good enough, but it could absolutely be better, especially the area where they
paint by hand, (some roads/parking lots++), it is alot of paint work getting an even finish.
Higher density urethane foam will create a better finish, but is harder to work with using hand tools if they decide to remove a building during the planning process.
One idea that I have is to mill the site model, then remove it spray paint it with several layers
of primer, and then put on the cnc table and rout it out again routing into the layer of primer.
Any ideas welcome, thanks.