One additional trick that some people are doing is printing just the shell and then filling the 3d print with some kind of resin, foam or concrete. Here's a co

One additional trick that some people are doing is printing just the shell and then filling the 3d print with some kind of resin, foam or concrete. Here's a concrete filled CNC machine: https://www.youtube.com/watch?v=L8t82OQXefM https://www.youtube.com/watch?v=L8t82OQXefM