I use mine to 3d print parts and then cast them in metal. They make special resins for this process, works great. I can go from Sketch - Fusion - Slicer - 3d Print - Cast in about 18 hours depending on the part size (long time to print complicated / big parts). If you're interested look in my bio there is a link to my youtube - watch the "casting gold balls" video - it basically runs through the whole process (albeit without explanation).