gr5, Thank you very much for the reply and heads up on the Ruby core. We need the stiffness and dimensional stability that the CF filled materials provide. One printer prints CF Nylon the other CF ABS. We use both materials in our product each for specific application needs. I did buy a Solex HardCore Pro 7 kit prior to realizing there is no advanced material support at Ultimaker. We are manufactures not hobbyists. I do not have the time to develop profiles for each material we use. I need approved/tested printing profiles for the CF materials or I may just need to sell the Ultimaker 3 and buy more of the other brand.