Bambu Lab designed one of the H3C print tools around a 2.85 mm filament path for softer TPU. That could be interesting for flexible parts, but material choice and settings still matter.
What would you want to make with it? Gaskets, grips, wearable parts, something else? If you have tried the H3C with flexible filament, please share the material, settings, and what worked or did not work.
We have not tested this printer ourselves yet, so real-world results are welcome.