I’ll second qidi, I got my x-pro back in 2018 and it came with instructions on tpu before you could reliably get tpu filament. My box has been printing like a dream ever since and they’ve even helped me do a bunch of custom mods. Last time the provided full spec measurements for thee extruder head to me, before they they provided custom cura specs for a machine modified with my custom kit to help troubleshoot an issue I was having. Literally, they modded their own machine with my files to help me out.

Best company I’ve ever worked with.