Printing Core for Epoxy Castings
I've searched but haven't found this application. I'm casting an Aluminum Epoxy material in a cast aluminum host. I want to 3D print a core such that when the epoxy cures, I can dissolve the core by soaking in some sort of liquid. Removing the core mechanically will not be possible, the core material must be completely removed from the finished part. Materials: I've tried PLA and although it softens with Acetone, it doesn't dissolve enough to rinse out of the cavity completely. I'm considering a water soluble filament but use it for the complete print, not just support structure. Is that even possible? Also, it would be nice if the filament material doesn't stick to epoxy but there are release agents to address that. Any help, comments, suggestions greatly appreciated.
Thanks, S.