HELP WITH FILAMENTS

I am new to 3d printing and thinking about buying the Monoprice voxel. It is wifi enabled and fully enclosed with a monitoring camera. It prints ABS, PLA, Wood Fill, Copper Fill, Steel Fill, Bronze Fill, but not TPU according to the specs. What would happen if I tried to feed tpu filament through the printer? Would it not work? What determines what filaments a printer can use? tts program.