I have a little experience using 3D printers, have 6 Makerbots (2 different models) that I use to print mainly anatomy-like items in our facility. The issue I am having is they cannot reliably print soft filament (ninjaflex TPU). In addition these printers overtime have not been printing consistently good prints with PLA. So I am seeking guidance on purchasing a very reliable printer that can do both TPU and PLA. From my research a direct extruder would probably be best, but if you have any other advice, I would appreciate it. I would need some small and some large printer volumes and price is not an issue. I want to be able to replicate organs/bones/other soft tissue structures to actual scale. Thank you!