Hi Lighter, thanks for messaging me. I actually no longer make laser hosts, not regularly at least. I can work with titanium in a limited fashion but it is very expensive and not suitable for a laser host. It has poor thermal conductivity. I've noticed throughout building pointers that conductivity is never an issue between aluminum, copper, stainless, and the like. I could flame ano titanium but I don't have equipment for electrolytic anodizing. What kinda laser were you looking to build?