Looking for information about fabricating a foam core tube wall using resin infusion. My plan is to make a hollow tube with and internal and external carbon fiber wall and a foam core in between to increase overall wall thickness. I was considering using resin infusion over a mandrel initially but possible moving to a split mold and through bagging to achieve a better finish on the OD. The foam core would most likely be Soric XF. Attached is a representative image, with green carbon inner and outer and a blue foam core, so as not to be confused with a solid foam core tube.
Has anyone built something like this? Any thoughts or advice are welcome.